Java String Instantiation

Question

Why is this code returning \"false\" instead of \"true\":

package com.company;


public class Main {

    public static void main(String[] args) {

        S         


        

Answer 1

String literals are interned. When you create a string through any method that isn't a literal (calling new String(), reading from input, concatenation, etc) it will not be automatically interned. When you called String firstNamePlusLastName = name + lastName; You concatenated name and lastName creating a new string. This is not a literal and you didn't call intern so this string is not added to the string pool.