View Code of Problem 1

package com.yht;

import java.util.Scanner;

public class Sum {
	int a, d, e;

	void sum_f_I() {
		a = d + e;
	}

	public static void main(String[] args) {
		Sum sum = new Sum();
		
		Scanner b = new Scanner(System.in);
		Scanner c = new Scanner(System.in);
		int d = b.nextInt();
		int e = c.nextInt();
		int a = d + e;
		sum.sum_f_I();
		System.out.println(a);

	}
}
/*
Main.java:5: error: class Sum is public, should be declared in a file named Sum.java
public class Sum {
       ^
1 error
*/