Check if a variable is equal to a string [duplicate]

Question

Possible Duplicate:
How do I compare strings in Java?
Java string comparison?

import java.util.*;

public class whatever
{

    public static void main(String[] args)
    {

        Scanner test = new Scanner(System.in);
        System.out.println("Input: ");
        String name = test.nextLine();

        if (name == "Win")
        {
            System.out.println("Working!");
        }

        else
        {
            System.out.println("Something is wrong...");
        }

        System.out.println("Value is: " + name);

    }

}

The code above is pretty self-explanatory. I'm assuming == can only be used for numbers? I want "Working!" to be printed.

SLaks · Accepted Answer · 2012-09-30 15:06:45Z

9

== compares objects by reference.

To find out whether two different String instances have the same value, call .equals().

answered Sep 30, 2012 at 15:06

SLaks

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1 Comment

Egor Over a year ago

Just to mention, "Win".equals(name) will be a more secure solution in case if name is null.

Mahmoud Aladdin · Accepted Answer · 2012-09-30 15:07:03Z

5

You should use

if (name.equals("Win")){
    System.out.println("Working!");
}

Edit Suggested By RC in comments to avoid null problems:

if ("Win".equals(name)){
    System.out.println("Working!");
}

answered Sep 30, 2012 at 15:07

Mahmoud Aladdin

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2 Comments

user180100 Over a year ago

"Win".equals(name) so if name is null, no worries

duffymo Over a year ago

I'd recommend ignoring case. Should "win" be less a victory than "Win" or "wIn" or "wiN"?

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