Equal function example program

class equaldemo {

public static void main(String args[]) {

String s1="Hello";

String s2="Hello";

String s3="Good bye";

String s4="HELLO";

System.out.println(s1 + " equals " + s2 + " is " + s1.equals(s2));

System.out.println(s1 + " equals " + s3 + " is " + s1.equals(s3));

System.out.println(s1 + " equals " + s4 + " is " + s1.equals(s4)); 

System.out.println(s1 + " equals " + s4 + " is " + s1.equalsIgnoreCase(s4));

}

}