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package GeeksForGeeks;

public class StringPoolDemo {

public static void main(String[] args) {

String s1 = "hello"; // string lateral

String s2 = "hello"; // created in string pool

String s3 = s1;

String s4 = new String("hello"); // string object

String s5 = new String("hello"); // hello object is created in heap, and

// reference is stored in stack

System.out.println(s1 == s2); // same reference in string pool

System.out.println(s1 == s4);

System.out.println(s2 == s3);

System.out.println(s4 == s5); // reference are different in heap

System.out.println(s1.equals(s2));

System.out.println(s1.equals(s4));

System.out.println(s2.equals(s3));

System.out.println(s4.equals(s5)); // match the content of object

// string are immutable

String s6 = s1 + " pool"; // s1 remains unchanged and new reference is created

System.out.println(s1);

System.out.println(s6);

}

}

/* output:

true

false

true

false

true

true

true

true

hello

hello pool

*/