Thread: If condition not working.

Hello, i'm trying to make a program that checks for your username and password which are stored in strings, it seems to take the else route everytime i enter the username right though.

import java.util.Scanner;
public class passwordCheck {
	public static void main(String args[]){
		String password = "test123";
		 String username = "variumzky";
		  Scanner check = new Scanner(System.in);
		   System.out.println("Enter your username here:");
		     if (check.nextLine() == username){
		    	 System.out.println("Enter your password");
		     }else{
		    	 System.out.println("No username like that was recognized in our database");
		    	 check.close();
		     }
 
		    }
	}

hello,
try the equal method instead of == operator and see what you get which in your case:
if(check.nextLine().equals(username))
{...}

Thank you sir!

--- Update ---

Originally Posted by Alaa

hello,
try the equal method instead of == operator and see what you get which in your case:
if(check.nextLine().equals(username))
{...}

I'm still kinda curious though, why didn't the == operator work?

hello,
think of check.next() and username are different objects since String objects are immutable. you cant compare two objects by == operator however java team provided the method equals to compare their values instead of the actual objects. that said, with == operator you compare between the two String objects while with equals you are comparing their values if they are the same. helpful?