StringInstanceEqualityPuzzle

public class StringEquals {
  public static void main(String[] args) {
		jack();
		jill();
		jeff();
		john();
	}

	public static void jack() {
		String s1 = "hill5";
		String s2 = "hill" + "5";
		System.out.println(s1 == s2);
		
	}

	public static void jill() {
		String s1 = "hill5";
		String s2 = "hill" + s1.length();
		System.out.println(s1 == s2);
	}
	
	public static void jeff() {
		String s1 = "hill5";
		int i = 5;
		String s2 = "hill" + i;
		System.out.println(s1 == s2);
	}
	
	public static void john() {
		String s1 = "hill5";
		String s2 = "hill" + 5;
		System.out.println(s1 == s2);
	}
}