View Code of Problem 1

public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            int a = sc.nextInt();
            int b = sc.nextInt();
            System.out.println(a+b);
        }
    }
/*
Main.java:1: error: class, interface, or enum expected
public static void main(String[] args) {
              ^
Main.java:3: error: class, interface, or enum expected
        while (sc.hasNext()) {
        ^
Main.java:5: error: class, interface, or enum expected
            int b = sc.nextInt();
            ^
Main.java:6: error: class, interface, or enum expected
            System.out.println(a+b);
            ^
Main.java:7: error: class, interface, or enum expected
        }
        ^
5 errors
*/