View Code of Problem 1

import java.util.Scanner;

public class Test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int a,b;
		Scanner in = new Scanner(System.in);
		a = in.nextInt();
		b = in.nextInt();
		System.out.println(a+b);
	}

}
/*
Main.java:3: error: class Test is public, should be declared in a file named Test.java
public class Test {
       ^
1 error
*/