How to Test String Equality in Java?

Sample program to test String Equality in Java using equals to (==) operator and String.equals() method.

public class StringEqualsTest {
	public static void main(String[] args) {
		String str1 = "hello";
		String str2 = str1;
		String str3 = new String("hellp");
		String str4 = new String("hello 2");
		String str5 = "hello";
		
		System.out.println("Comparison using == : " + (str1 == str5));
		System.out.println("Comparison using == : " + (str1 == str2));
		System.out.println("Comparison Using equals() method : " + str1.equals(str2));
		System.out.println("Comparison using == : " + (str3 == str4));
		System.out.println("Comparison Using equals() method : " + str3.equals(str4));
	}
}