StringTests.java

import java.io.*;
import java.util.*;

public class StringTests {
    public static void main(String[] args) {
	String s1, s2, s3, s4, s5, s6;
	s1 = new String("Hello");
        s2 = "Hello";
	s3 = s1;
	s4 = "Hello";
	s5 = "World";
	s6 = new String("World");
	System.out.println(s1 == s2);
	System.out.println(s1 == s3);
	System.out.println(s1 == s4);
	System.out.println(s1 == s5);
	System.out.println(s1 == s6);
	System.out.println(s2 == s3);
	System.out.println(s2 == s4);
	System.out.println(s2 == s5);
	System.out.println(s2 == s6);
	System.out.println(s3 == s4);
	System.out.println(s3 == s5);
	System.out.println(s3 == s6);
	System.out.println(s4 == s5);
	System.out.println(s4 == s6);
	System.out.println(s5 == s6);
    }
}