package string;

public class StringComparisonEx {

public static void main(String[] args) {

String s1 = "Hello";

String s2 = "Hello";

System.out.println("s1 == s2 -> " + (s1 == s2));

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

String s3 = new String("Hello");

String s4 = new String("Hello");

System.out.println("s3 == s4 -> " + (s3 == s4));

System.out.println("s3.equals(s4) -> " + s3.equals(s4));

System.out.println(" s1 == s3 ->" + (s1 == s3));

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

System.out.println(s3 == "Hello"); // here "Hello" is string literal

// Compares two strings lexicographically ?

s1.compareTo(s4);

// intern will check if already "Hello" is in String Pool

// If yes then return reference

// if no then put value in String pool

String s5 = new String("Hello").intern();

System.out.println("s1==s5 -> " + (s1 == s5)); // true

System.out.println(s1.equals(s5));

}

}