660 lines
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<title>SumDoubleHex – CodeJava</title>
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<meta name="description" content="Task Input data are 64-bit floating point numbers There are decimal and hexadecimal numbers in the input Hexadecimal numbers has 0x prefix, for example 0xa.bp2 equals (10 + 11/16)·4 = 42.75 Input is case-insensitive Class should be named SumDoubleHex Solution Let’s change our SumHex parseNumber method modification code. Currently it looks like this
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static long parseNumber(StringBuilder number) { if (!number.isEmpty()) { String numberString = number.toString(); if ( numberString.startsWith("0x") || numberString.startsWith("0X") ) { return Long.parseLong(numberString.substring(2), 16); } else { return Integer.parseInt(numberString); } } else { return 0; } } Let’s change it a little bit" /><link rel="canonical" href="http://localhost:1313/courses/prog-intro/homeworks/sum/sumdoublehex/" itemprop="url" />
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<meta itemprop="description" content="Task Input data are 64-bit floating point numbers There are decimal and hexadecimal numbers in the input Hexadecimal numbers has 0x prefix, for example 0xa.bp2 equals (10 + 11/16)·4 = 42.75 Input is case-insensitive Class should be named SumDoubleHex Solution Let’s change our SumHex parseNumber method modification code. Currently it looks like this
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static long parseNumber(StringBuilder number) { if (!number.isEmpty()) { String numberString = number.toString(); if ( numberString.startsWith("0x") || numberString.startsWith("0X") ) { return Long.parseLong(numberString.substring(2), 16); } else { return Integer.parseInt(numberString); } } else { return 0; } } Let’s change it a little bit">
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<meta name="twitter:description" content="Task Input data are 64-bit floating point numbers There are decimal and hexadecimal numbers in the input Hexadecimal numbers has 0x prefix, for example 0xa.bp2 equals (10 + 11/16)·4 = 42.75 Input is case-insensitive Class should be named SumDoubleHex Solution Let’s change our SumHex parseNumber method modification code. Currently it looks like this
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static long parseNumber(StringBuilder number) { if (!number.isEmpty()) { String numberString = number.toString(); if ( numberString.startsWith("0x") || numberString.startsWith("0X") ) { return Long.parseLong(numberString.substring(2), 16); } else { return Integer.parseInt(numberString); } } else { return 0; } } Let’s change it a little bit">
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href="/courses/spring-boot/"
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>Spring Boot
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</a>
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href="/courses/prog-intro/"
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>Introduction to Programming in Java
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href="/courses/prog-intro/homeworks/"
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>Homeworks
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class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
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href="/courses/prog-intro/homeworks/sum/"
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>Sum
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<span class="hextra-sidebar-collapsible-button"><svg fill="none" viewBox="0 0 24 24" stroke="currentColor" class="hx:h-[18px] hx:min-w-[18px] hx:rounded-xs hx:p-0.5 hx:hover:bg-gray-800/5 hx:dark:hover:bg-gray-100/5"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" class="hx:origin-center hx:transition-transform hx:rtl:-rotate-180"></path></svg></span>
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class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
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||
href="/courses/prog-intro/homeworks/sum/sumbigintegeroctal/"
|
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|
||
>SumBigIntegerOctal
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/sumdouble/"
|
||
|
||
>SumDouble
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col open"><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hextra-sidebar-active-item hx:bg-primary-100 hx:font-semibold hx:text-primary-800 hx:contrast-more:border hx:contrast-more:border-primary-500 hx:dark:bg-primary-400/10 hx:dark:text-primary-600 hx:contrast-more:dark:border-primary-500"
|
||
href="/courses/prog-intro/homeworks/sum/sumdoublehex/"
|
||
|
||
>SumDoubleHex
|
||
</a>
|
||
|
||
<ul class='hx:flex hx:flex-col hx:gap-1 hx:relative hx:before:absolute hx:before:inset-y-1 hx:before:w-px hx:before:bg-gray-200 hx:before:content-[""] hx:dark:before:bg-neutral-800 hx:ltr:pl-3 hx:ltr:before:left-0 hx:rtl:pr-3 hx:rtl:before:right-0 hx:ltr:ml-3 hx:rtl:mr-3'><li>
|
||
<a
|
||
href="#solution"
|
||
class="hx:flex hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [word-break:break-word] hx:cursor-pointer [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] hx:contrast-more:border hx:gap-2 hx:before:opacity-25 hx:before:content-['#'] hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:text-gray-900 hx:contrast-more:dark:text-gray-50 hx:contrast-more:border-transparent hx:contrast-more:hover:border-gray-900 hx:contrast-more:dark:hover:border-gray-50"
|
||
>Solution</a>
|
||
</li>
|
||
</ul>
|
||
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/sumhex/"
|
||
|
||
>SumHex
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/sumlongoctal/"
|
||
|
||
>SumLongOctal
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/conclusion/"
|
||
|
||
>Summing Up
|
||
</a>
|
||
|
||
</li></ul>
|
||
</div>
|
||
</li></ul>
|
||
</div>
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/lectures/"
|
||
|
||
>Lectures
|
||
<span class="hextra-sidebar-collapsible-button"><svg fill="none" viewBox="0 0 24 24" stroke="currentColor" class="hx:h-[18px] hx:min-w-[18px] hx:rounded-xs hx:p-0.5 hx:hover:bg-gray-800/5 hx:dark:hover:bg-gray-100/5"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" class="hx:origin-center hx:transition-transform hx:rtl:-rotate-180"></path></svg></span>
|
||
</a>
|
||
<div class="hx:ltr:pr-0 hx:overflow-hidden">
|
||
<ul class='hx:relative hx:flex hx:flex-col hx:gap-1 hx:before:absolute hx:before:inset-y-1 hx:before:w-px hx:before:bg-gray-200 hx:before:content-[""] hx:ltr:ml-3 hx:ltr:pl-3 hx:ltr:before:left-0 hx:rtl:mr-3 hx:rtl:pr-3 hx:rtl:before:right-0 hx:dark:before:bg-neutral-800'><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/lectures/intro/"
|
||
|
||
>Lecture 1. Introduction
|
||
</a>
|
||
|
||
</li></ul>
|
||
</div>
|
||
</li></ul>
|
||
</div>
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/paradigms/"
|
||
|
||
>Paradgims of Programming
|
||
</a>
|
||
|
||
</li></ul>
|
||
</div></li>
|
||
</ul>
|
||
|
||
<ul class="hx:flex hx:flex-col hx:gap-1 hx:max-md:hidden">
|
||
|
||
<li class=""><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/spring-boot/"
|
||
|
||
>Spring Boot
|
||
</a></li>
|
||
<li class="open"><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/"
|
||
|
||
>Introduction to Programming in Java
|
||
<span class="hextra-sidebar-collapsible-button"><svg fill="none" viewBox="0 0 24 24" stroke="currentColor" class="hx:h-[18px] hx:min-w-[18px] hx:rounded-xs hx:p-0.5 hx:hover:bg-gray-800/5 hx:dark:hover:bg-gray-100/5"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" class="hx:origin-center hx:transition-transform hx:rtl:-rotate-180"></path></svg></span>
|
||
</a><div class="hx:ltr:pr-0 hx:overflow-hidden">
|
||
<ul class='hx:relative hx:flex hx:flex-col hx:gap-1 hx:before:absolute hx:before:inset-y-1 hx:before:w-px hx:before:bg-gray-200 hx:before:content-[""] hx:ltr:ml-3 hx:ltr:pl-3 hx:ltr:before:left-0 hx:rtl:mr-3 hx:rtl:pr-3 hx:rtl:before:right-0 hx:dark:before:bg-neutral-800'><li class="hx:flex hx:flex-col open"><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/"
|
||
|
||
>Homeworks
|
||
<span class="hextra-sidebar-collapsible-button"><svg fill="none" viewBox="0 0 24 24" stroke="currentColor" class="hx:h-[18px] hx:min-w-[18px] hx:rounded-xs hx:p-0.5 hx:hover:bg-gray-800/5 hx:dark:hover:bg-gray-100/5"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" class="hx:origin-center hx:transition-transform hx:rtl:-rotate-180"></path></svg></span>
|
||
</a>
|
||
<div class="hx:ltr:pr-0 hx:overflow-hidden">
|
||
<ul class='hx:relative hx:flex hx:flex-col hx:gap-1 hx:before:absolute hx:before:inset-y-1 hx:before:w-px hx:before:bg-gray-200 hx:before:content-[""] hx:ltr:ml-3 hx:ltr:pl-3 hx:ltr:before:left-0 hx:rtl:mr-3 hx:rtl:pr-3 hx:rtl:before:right-0 hx:dark:before:bg-neutral-800'><li class="hx:flex hx:flex-col open"><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/"
|
||
|
||
>Sum
|
||
<span class="hextra-sidebar-collapsible-button"><svg fill="none" viewBox="0 0 24 24" stroke="currentColor" class="hx:h-[18px] hx:min-w-[18px] hx:rounded-xs hx:p-0.5 hx:hover:bg-gray-800/5 hx:dark:hover:bg-gray-100/5"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" class="hx:origin-center hx:transition-transform hx:rtl:-rotate-180"></path></svg></span>
|
||
</a>
|
||
<div class="hx:ltr:pr-0 hx:overflow-hidden">
|
||
<ul class='hx:relative hx:flex hx:flex-col hx:gap-1 hx:before:absolute hx:before:inset-y-1 hx:before:w-px hx:before:bg-gray-200 hx:before:content-[""] hx:ltr:ml-3 hx:ltr:pl-3 hx:ltr:before:left-0 hx:rtl:mr-3 hx:rtl:pr-3 hx:rtl:before:right-0 hx:dark:before:bg-neutral-800'><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/sumbigintegeroctal/"
|
||
|
||
>SumBigIntegerOctal
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/sumdouble/"
|
||
|
||
>SumDouble
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col open"><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hextra-sidebar-active-item hx:bg-primary-100 hx:font-semibold hx:text-primary-800 hx:contrast-more:border hx:contrast-more:border-primary-500 hx:dark:bg-primary-400/10 hx:dark:text-primary-600 hx:contrast-more:dark:border-primary-500"
|
||
href="/courses/prog-intro/homeworks/sum/sumdoublehex/"
|
||
|
||
>SumDoubleHex
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/sumhex/"
|
||
|
||
>SumHex
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/sumlongoctal/"
|
||
|
||
>SumLongOctal
|
||
</a>
|
||
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/homeworks/sum/conclusion/"
|
||
|
||
>Summing Up
|
||
</a>
|
||
|
||
</li></ul>
|
||
</div>
|
||
</li></ul>
|
||
</div>
|
||
</li><li class="hx:flex hx:flex-col "><a
|
||
class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
|
||
hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/lectures/"
|
||
|
||
>Lectures
|
||
<span class="hextra-sidebar-collapsible-button"><svg fill="none" viewBox="0 0 24 24" stroke="currentColor" class="hx:h-[18px] hx:min-w-[18px] hx:rounded-xs hx:p-0.5 hx:hover:bg-gray-800/5 hx:dark:hover:bg-gray-100/5"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" class="hx:origin-center hx:transition-transform hx:rtl:-rotate-180"></path></svg></span>
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class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
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hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/prog-intro/lectures/intro/"
|
||
|
||
>Lecture 1. Introduction
|
||
</a>
|
||
|
||
</li></ul>
|
||
</div>
|
||
</li></ul>
|
||
</div></li>
|
||
<li class=""><a
|
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class="hx:flex hx:items-center hx:justify-between hx:gap-2 hx:cursor-pointer hx:rounded-sm hx:px-2 hx:py-1.5 hx:text-sm hx:transition-colors [-webkit-tap-highlight-color:transparent] [-webkit-touch-callout:none] [word-break:break-word]
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hx:text-gray-500 hx:hover:bg-gray-100 hx:hover:text-gray-900 hx:contrast-more:border hx:contrast-more:border-transparent hx:contrast-more:text-gray-900 hx:contrast-more:hover:border-gray-900 hx:dark:text-neutral-400 hx:dark:hover:bg-primary-100/5 hx:dark:hover:text-gray-50 hx:contrast-more:dark:text-gray-50 hx:contrast-more:dark:hover:border-gray-50"
|
||
href="/courses/paradigms/"
|
||
|
||
>Paradgims of Programming
|
||
</a></li>
|
||
|
||
</ul>
|
||
</div>
|
||
|
||
|
||
<div class=" hx:sticky hx:bottom-0 hx:max-h-(--menu-height) hx:bg-white hx:dark:bg-dark hx:mx-4 hx:py-4 hx:shadow-[0_-12px_16px_#fff] hx:flex hx:items-center hx:gap-2 hx:border-gray-200 hx:dark:border-neutral-800 hx:dark:shadow-[0_-12px_16px_#111] hx:contrast-more:border-neutral-400 hx:contrast-more:shadow-none hx:contrast-more:dark:shadow-none hx:border-t" data-toggle-animation="show"><div class="hx:flex hx:grow hx:flex-col"><div class="hx:flex hx:justify-items-start hx:group" data-theme="light">
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aria-label="Change theme"
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</svg>
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<span class="hx:group-data-[theme=dark]:hidden hx:group-data-[theme=light]:hidden">System</span></div>
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data-theme="light"
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Light
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<span class="hx:absolute hx:inset-y-0 hx:flex hx:items-center hx:ltr:right-3 hx:rtl:left-3 hx:group-data-[theme=dark]:hidden hx:group-data-[theme=system]:hidden"><svg height=1em width=1em xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7"/></svg></span>
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>
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Dark
|
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<span class="hx:absolute hx:inset-y-0 hx:flex hx:items-center hx:ltr:right-3 hx:rtl:left-3 hx:group-data-[theme=light]:hidden hx:group-data-[theme=system]:hidden"><svg height=1em width=1em xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7"/></svg></span>
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data-item="system"
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>
|
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System
|
||
<span class="hx:absolute hx:inset-y-0 hx:flex hx:items-center hx:ltr:right-3 hx:rtl:left-3 hx:group-data-[theme=dark]:hidden hx:group-data-[theme=light]:hidden"><svg height=1em width=1em xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7"/></svg></span>
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</p>
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</li>
|
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</ul>
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</div></div></div></aside>
|
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|
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<nav class="hextra-toc hx:order-last hx:hidden hx:w-64 hx:shrink-0 hx:xl:block hx:print:hidden hx:px-4" aria-label="table of contents">
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<div class="hextra-scrollbar hx:sticky hx:top-16 hx:overflow-y-auto hx:pr-4 hx:pt-6 hx:text-sm [hyphens:auto] hx:max-h-[calc(100vh-var(--navbar-height)-env(safe-area-inset-bottom))] hx:ltr:-mr-4 hx:rtl:-ml-4"><p class="hx:mb-4 hx:font-semibold hx:tracking-tight">On this page</p><ul>
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<a class="hx:font-medium hx:inline-block hx:text-gray-500 hx:hover:text-gray-900 hx:dark:text-gray-400 hx:dark:hover:text-gray-300 hx:contrast-more:text-gray-900 hx:contrast-more:underline hx:contrast-more:dark:text-gray-50 hx:w-full hx:break-words" href="#solution">Solution
|
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</a>
|
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</li></ul>
|
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<div class="hx:mt-8 hx:border-t hx:bg-white hx:pt-8 hx:shadow-[0_-12px_16px_white] hx:dark:bg-dark hx:dark:shadow-[0_-12px_16px_#111] hx:sticky hx:bottom-0 hx:flex hx:flex-col hx:items-start hx:gap-2 hx:pb-8 hx:border-gray-200 hx:dark:border-neutral-800 hx:contrast-more:border-t hx:contrast-more:border-neutral-400 hx:contrast-more:shadow-none hx:contrast-more:dark:border-neutral-400">
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<span>Scroll to top</span>
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<article class="hx:w-full hx:break-words hx:flex hx:min-h-[calc(100vh-var(--navbar-height))] hx:min-w-0 hx:justify-center hx:pb-8 hx:pr-[calc(env(safe-area-inset-right)-1.5rem)]">
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<main class="hx:w-full hx:min-w-0 hx:max-w-6xl hx:px-6 hx:pt-4 hx:md:px-12">
|
||
|
||
<div class="content">
|
||
<h1>SumDoubleHex</h1>
|
||
<h1>Task</h1><ul>
|
||
<li>Input data are 64-bit floating point numbers</li>
|
||
<li>There are decimal and hexadecimal numbers in the input</li>
|
||
<li>Hexadecimal numbers has <code>0x</code> prefix, for example <code>0xa.bp2</code> equals <code>(10 + 11/16)·4 = 42.75</code></li>
|
||
<li>Input is case-insensitive</li>
|
||
<li>Class should be named <code>SumDoubleHex</code></li>
|
||
</ul>
|
||
<h2>Solution<span class="hx:absolute hx:-mt-20" id="solution"></span>
|
||
<a href="#solution" class="subheading-anchor" aria-label="Permalink for this section"></a></h2><p>Let’s change our <code>SumHex</code> <code>parseNumber</code> method modification code. Currently it looks like this</p>
|
||
<div class="hextra-code-block hx:relative hx:mt-6 hx:first:mt-0 hx:group/code">
|
||
|
||
<div><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-java" data-lang="java"><span style="display:flex;"><span><span style="color:#66d9ef">static</span> <span style="color:#66d9ef">long</span> <span style="color:#a6e22e">parseNumber</span>(StringBuilder number) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (<span style="color:#f92672">!</span>number.<span style="color:#a6e22e">isEmpty</span>()) {
|
||
</span></span><span style="display:flex;"><span> String numberString <span style="color:#f92672">=</span> number.<span style="color:#a6e22e">toString</span>();
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (
|
||
</span></span><span style="display:flex;"><span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0x"</span>) <span style="color:#f92672">||</span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0X"</span>)
|
||
</span></span><span style="display:flex;"><span> ) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Long.<span style="color:#a6e22e">parseLong</span>(numberString.<span style="color:#a6e22e">substring</span>(2), 16);
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Integer.<span style="color:#a6e22e">parseInt</span>(numberString);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> 0;
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span>}</span></span></code></pre></div></div><div class="hextra-code-copy-btn-container hx:opacity-0 hx:transition hx:group-hover/code:opacity-100 hx:flex hx:gap-1 hx:absolute hx:m-[11px] hx:right-0 hx:top-0">
|
||
<button
|
||
class="hextra-code-copy-btn hx:group/copybtn hx:cursor-pointer hx:transition-all hx:active:opacity-50 hx:bg-primary-700/5 hx:border hx:border-black/5 hx:text-gray-600 hx:hover:text-gray-900 hx:rounded-md hx:p-1.5 hx:dark:bg-primary-300/10 hx:dark:border-white/10 hx:dark:text-gray-400 hx:dark:hover:text-gray-50"
|
||
title="Copy code"
|
||
>
|
||
<div class="hextra-copy-icon hx:group-[.copied]/copybtn:hidden hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
<div class="hextra-success-icon hx:hidden hx:group-[.copied]/copybtn:block hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
</button>
|
||
</div>
|
||
</div>
|
||
<p>Let’s change it a little bit</p>
|
||
<div class="hextra-code-block hx:relative hx:mt-6 hx:first:mt-0 hx:group/code">
|
||
|
||
<div><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-java" data-lang="java"><span style="display:flex;"><span><span style="color:#66d9ef">static</span> <span style="color:#66d9ef">double</span> <span style="color:#a6e22e">parseNumber</span>(StringBuilder number) { <span style="color:#75715e">// long -> double</span>
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (<span style="color:#f92672">!</span>number.<span style="color:#a6e22e">isEmpty</span>()) {
|
||
</span></span><span style="display:flex;"><span> String numberString <span style="color:#f92672">=</span> number.<span style="color:#a6e22e">toString</span>();
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (
|
||
</span></span><span style="display:flex;"><span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0x"</span>) <span style="color:#f92672">||</span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0X"</span>)
|
||
</span></span><span style="display:flex;"><span> ) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (<span style="color:#75715e">/* there is a dot (.) inside a number */</span>) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Double.<span style="color:#a6e22e">parseDouble</span>(numberString);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Long.<span style="color:#a6e22e">parseLong</span>(numberString.<span style="color:#a6e22e">substring</span>(2), 16);
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Double.<span style="color:#a6e22e">parseDouble</span>(numberString); <span style="color:#75715e">// Integer.parseInt(...) -> Double.parseDouble(...)</span>
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> 0;
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span>}</span></span></code></pre></div></div><div class="hextra-code-copy-btn-container hx:opacity-0 hx:transition hx:group-hover/code:opacity-100 hx:flex hx:gap-1 hx:absolute hx:m-[11px] hx:right-0 hx:top-0">
|
||
<button
|
||
class="hextra-code-copy-btn hx:group/copybtn hx:cursor-pointer hx:transition-all hx:active:opacity-50 hx:bg-primary-700/5 hx:border hx:border-black/5 hx:text-gray-600 hx:hover:text-gray-900 hx:rounded-md hx:p-1.5 hx:dark:bg-primary-300/10 hx:dark:border-white/10 hx:dark:text-gray-400 hx:dark:hover:text-gray-50"
|
||
title="Copy code"
|
||
>
|
||
<div class="hextra-copy-icon hx:group-[.copied]/copybtn:hidden hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
<div class="hextra-success-icon hx:hidden hx:group-[.copied]/copybtn:block hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
</button>
|
||
</div>
|
||
</div>
|
||
<div class="hx:overflow-x-auto hx:mt-6 hx:flex hx:flex-col hx:rounded-lg hx:border hx:py-4 hx:px-4 hx:border-gray-200 hx:contrast-more:border-current hx:contrast-more:dark:border-current hx:border-blue-200 hx:bg-blue-100 hx:text-blue-900 hx:dark:border-blue-200/30 hx:dark:bg-blue-900/30 hx:dark:text-blue-200">
|
||
<p class="hx:flex hx:items-center hx:font-medium"><svg height=16px class="hx:inline-block hx:align-middle hx:mr-2" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>Note</p>
|
||
|
||
<div class="hx:w-full hx:min-w-0 hx:leading-7">
|
||
<div class="hx:mt-6 hx:leading-7 hx:first:mt-0"><p>Notice, that we pass only one argument into <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html#parseDouble-java.lang.String-"target="_blank" rel="noopener"><code>Double.parseDouble()</code></a> method, because <code>parseDouble</code>’s parser recognizes <code>0x</code> pattern itself.</p></div>
|
||
</div>
|
||
</div>
|
||
<p>Aside of obvious analogical changes, we need to somehow understand if the number contains a dot (<code>.</code>). We can do so by using <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#contains-java.lang.CharSequence-"target="_blank" rel="noopener"><code>String.contains(CharSequence s)</code></a>. Which checks if the <code>s</code> is present in the string.</p>
|
||
<div class="hx:overflow-x-auto hx:mt-6 hx:flex hx:flex-col hx:rounded-lg hx:border hx:py-4 hx:px-4 hx:border-gray-200 hx:contrast-more:border-current hx:contrast-more:dark:border-current hx:border-blue-200 hx:bg-blue-100 hx:text-blue-900 hx:dark:border-blue-200/30 hx:dark:bg-blue-900/30 hx:dark:text-blue-200">
|
||
<p class="hx:flex hx:items-center hx:font-medium"><svg height=16px class="hx:inline-block hx:align-middle hx:mr-2" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>Note</p>
|
||
|
||
<div class="hx:w-full hx:min-w-0 hx:leading-7">
|
||
<div class="hx:mt-6 hx:leading-7 hx:first:mt-0"><p>In the defenition of the <code>contains</code> method there is <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html"target="_blank" rel="noopener"><code>CharSequence</code></a> data type. <code>String</code> data type fits into <code>CharSequence</code> data type as it is declared in the documentation.</p></div>
|
||
</div>
|
||
</div>
|
||
<p>So our <code>parseNumber</code> method code will look like this</p>
|
||
<div class="hextra-code-block hx:relative hx:mt-6 hx:first:mt-0 hx:group/code">
|
||
|
||
<div><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-java" data-lang="java"><span style="display:flex;"><span><span style="color:#66d9ef">static</span> <span style="color:#66d9ef">double</span> <span style="color:#a6e22e">parseNumber</span>(StringBuilder number) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (<span style="color:#f92672">!</span>number.<span style="color:#a6e22e">isEmpty</span>()) {
|
||
</span></span><span style="display:flex;"><span> String numberString <span style="color:#f92672">=</span> number.<span style="color:#a6e22e">toString</span>();
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (
|
||
</span></span><span style="display:flex;"><span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0x"</span>) <span style="color:#f92672">||</span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0X"</span>)
|
||
</span></span><span style="display:flex;"><span> ) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (numberString.<span style="color:#a6e22e">contains</span>(<span style="color:#e6db74">"."</span>)) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Double.<span style="color:#a6e22e">parseDouble</span>(numberString);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Long.<span style="color:#a6e22e">parseLong</span>(numberString.<span style="color:#a6e22e">substring</span>(2), 16);
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Double.<span style="color:#a6e22e">parseDouble</span>(numberString);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> 0;
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span>}</span></span></code></pre></div></div><div class="hextra-code-copy-btn-container hx:opacity-0 hx:transition hx:group-hover/code:opacity-100 hx:flex hx:gap-1 hx:absolute hx:m-[11px] hx:right-0 hx:top-0">
|
||
<button
|
||
class="hextra-code-copy-btn hx:group/copybtn hx:cursor-pointer hx:transition-all hx:active:opacity-50 hx:bg-primary-700/5 hx:border hx:border-black/5 hx:text-gray-600 hx:hover:text-gray-900 hx:rounded-md hx:p-1.5 hx:dark:bg-primary-300/10 hx:dark:border-white/10 hx:dark:text-gray-400 hx:dark:hover:text-gray-50"
|
||
title="Copy code"
|
||
>
|
||
<div class="hextra-copy-icon hx:group-[.copied]/copybtn:hidden hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
<div class="hextra-success-icon hx:hidden hx:group-[.copied]/copybtn:block hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
</button>
|
||
</div>
|
||
</div>
|
||
<p>And after changing <code>sum</code>’s data type to <code>double</code> in <code>main</code> method we get</p>
|
||
<div class="hextra-code-block hx:relative hx:mt-6 hx:first:mt-0 hx:group/code">
|
||
|
||
<div><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-java" data-lang="java"><span style="display:flex;"><span><span style="color:#75715e">// SumDoubleHex.java</span>
|
||
</span></span><span style="display:flex;"><span>
|
||
</span></span><span style="display:flex;"><span><span style="color:#66d9ef">public</span> <span style="color:#66d9ef">class</span> <span style="color:#a6e22e">SumDoubleHex</span> {
|
||
</span></span><span style="display:flex;"><span>
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">public</span> <span style="color:#66d9ef">static</span> <span style="color:#66d9ef">void</span> <span style="color:#a6e22e">main</span>(String<span style="color:#f92672">[]</span> args) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">double</span> sum <span style="color:#f92672">=</span> 0;
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">for</span> (String argument : args) {
|
||
</span></span><span style="display:flex;"><span> StringBuilder number <span style="color:#f92672">=</span> <span style="color:#66d9ef">new</span> StringBuilder();
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">for</span> (<span style="color:#66d9ef">char</span> c : argument.<span style="color:#a6e22e">toCharArray</span>()) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (<span style="color:#f92672">!</span>Character.<span style="color:#a6e22e">isWhitespace</span>(c)) {
|
||
</span></span><span style="display:flex;"><span> number.<span style="color:#a6e22e">append</span>(c);
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> sum <span style="color:#f92672">+=</span> parseNumber(number);
|
||
</span></span><span style="display:flex;"><span> number <span style="color:#f92672">=</span> <span style="color:#66d9ef">new</span> StringBuilder();
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span>
|
||
</span></span><span style="display:flex;"><span> sum <span style="color:#f92672">+=</span> parseNumber(number);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span>
|
||
</span></span><span style="display:flex;"><span> System.<span style="color:#a6e22e">out</span>.<span style="color:#a6e22e">println</span>(sum);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span>
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">static</span> <span style="color:#66d9ef">double</span> <span style="color:#a6e22e">parseNumber</span>(StringBuilder number) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (<span style="color:#f92672">!</span>number.<span style="color:#a6e22e">isEmpty</span>()) {
|
||
</span></span><span style="display:flex;"><span> String numberString <span style="color:#f92672">=</span> number.<span style="color:#a6e22e">toString</span>();
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (
|
||
</span></span><span style="display:flex;"><span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0x"</span>) <span style="color:#f92672">||</span> numberString.<span style="color:#a6e22e">startsWith</span>(<span style="color:#e6db74">"0X"</span>)
|
||
</span></span><span style="display:flex;"><span> ) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">if</span> (numberString.<span style="color:#a6e22e">contains</span>(<span style="color:#e6db74">"."</span>)) {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Double.<span style="color:#a6e22e">parseDouble</span>(numberString);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Long.<span style="color:#a6e22e">parseLong</span>(numberString.<span style="color:#a6e22e">substring</span>(2), 16);
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> Double.<span style="color:#a6e22e">parseDouble</span>(numberString);
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> } <span style="color:#66d9ef">else</span> {
|
||
</span></span><span style="display:flex;"><span> <span style="color:#66d9ef">return</span> 0;
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span> }
|
||
</span></span><span style="display:flex;"><span>}</span></span></code></pre></div></div><div class="hextra-code-copy-btn-container hx:opacity-0 hx:transition hx:group-hover/code:opacity-100 hx:flex hx:gap-1 hx:absolute hx:m-[11px] hx:right-0 hx:top-0">
|
||
<button
|
||
class="hextra-code-copy-btn hx:group/copybtn hx:cursor-pointer hx:transition-all hx:active:opacity-50 hx:bg-primary-700/5 hx:border hx:border-black/5 hx:text-gray-600 hx:hover:text-gray-900 hx:rounded-md hx:p-1.5 hx:dark:bg-primary-300/10 hx:dark:border-white/10 hx:dark:text-gray-400 hx:dark:hover:text-gray-50"
|
||
title="Copy code"
|
||
>
|
||
<div class="hextra-copy-icon hx:group-[.copied]/copybtn:hidden hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
<div class="hextra-success-icon hx:hidden hx:group-[.copied]/copybtn:block hx:pointer-events-none hx:h-4 hx:w-4"></div>
|
||
</button>
|
||
</div>
|
||
</div>
|
||
<p>This code will work and pass all the tests!</p>
|
||
|
||
</div>
|
||
<div class="hx:mt-16"></div>
|
||
<div class="hx:mt-16"></div>
|
||
|
||
</main>
|
||
</article>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<script defer src="/js/main.js" integrity=""></script>
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||
<script defer src="/js/flexsearch.9f5b5908f93ae86f1ecd4b043b799f580c2d1654e703dd9357d568ac41b2547a.js" integrity="sha256-n1tZCPk66G8ezUsEO3mfWAwtFlTnA92TV9VorEGyVHo=" crossorigin="anonymous"></script>
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||
<script defer src="/en.search.js" integrity=""></script>
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</html>
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