update

public/courses/prog-intro/homeworks/sum/ParseIntExample.java

@@ -0,0 +1,12 @@
+// ParseIntExample.java
+
+public class ParseIntExample {
+
+    public static void main(String[] args) {
+        String s = "123";
+        int sum = 321;
+        //! sum = sum + s;
+        sum = sum + Integer.parseInt(s);
+        System.out.println(sum);
+    }
+}