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

Because you must use .equals() to strings

fullName.equals(firstNamePlusLastName)

== tests for reference equality (whether they are the same object), meaning exactly the same, the same reference even.

.equals() refers to the equals implementation of an object, it means, for string, if they has the same chars in the same order.

Consider this:

    String a = new String("a");
    String anotherA = new String("a");
    String b = a;
    String c = a;

a == anotherA -> False;
b == a -> True
b == c -> true
anotherA.equals(a) -> True