public class Demo1 {

public static void main(String[] args) {

// Final Class (Java 1.0)

// it a group of characters (Char Array)

// Also Called as a DataType , But is a Class

// Immutable Class

// String use String Pool

String a ="Hello".intern(); // 1 or 0

String b = "Hello".intern();

String c = new String("Hello"); // 2 or 1

if(a==b){

System.out.println("Same Ref");

}

else

{

System.out.println("Not Same Ref");

}

//String x = new String();

//String y = new String("Hello");

a = "Bye";

if(a==b){

System.out.println("Same Ref");

}

else

{

System.out.println("Not Same Ref");

}

a ="Hello";

if(a==b){

System.out.println("Same Ref");

}

else

{

System.out.println("Not Same Ref");

}

String e = new String("Hi"); //2

String f = new String("Hi"); // 1

if(e==f){

System.out.println("Same Ref of e and f");

}

else

{

System.out.println("Not Same Ref of e and f");

}

// TODO Auto-generated method stub

}

}