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Thread: Password With Java(Error)

  1. #1
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    Unhappy Password With Java(Error)

    Hi !

    I want to make a console window program which take a password from window and compare it with a predefined password and then will show password match or not match.

    my code is where which is compiling and running too.

    But the problem is that when i am taking password input(wrong or correct password in both) from console its always showing result "not match" . please help me

    here is the code
     
    import java.io.Console;
     
    public class Main
    {
    	public static void main(String[] args)
    	{
     
    		Console console = System.console();
     
        	char[] passwordArray={'s'};
     
        	char[] passwordArray2 = console.readPassword("Enter your secret password: ");
     
    		if((passwordArray==passwordArray2))
        	{
    			console.printf("Match\n");
    		}
     
    		else
    		{
    			console.printf("not Match");
    		}
    	}
     
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Password With Java(Error)

    The == operator does not compare the contents of two arrays.
    See the Arrays class for a method that may help.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: Password With Java(Error)

    can you please make the code correct for me?

  4. #4
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    Default Re: Password With Java(Error)

    Did you find the API doc for the class I suggested? What method did you try?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Password With Java(Error)

    i have used

    if( passwordArray.equals(passwordArray2))

    still same problem

  6. #6
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    Default Re: Password With Java(Error)

    Did you read the API doc for the Arrays class to see if any of its methods would help you?
    Java Platform SE 7
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Password With Java(Error)

    [solved]
    tnx norm ur link helps me much....

    import java.util.Arrays;
    toCharArray() and if (Arrays.equals(p1, p2)) helps me much



    import java.io.Console;
    import java.util.Arrays;

    public class Password{

    public static void main(String[] args) {
    Console console = System.console();

    char[] password = "shaon".toCharArray();

    char[] passwordEntered = console.readPassword("Enter password: ");

    if (Arrays.equals(password, passwordEntered))
    {
    System.out.println("\n Access granted \n");

    }
    else
    {
    System.out.println("Access denied");
    System.exit(1);
    }
    }
    }

  8. #8
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    Default Re: Password With Java(Error)

    I'm glad you got it working.
    If you don't understand my answer, don't ignore it, ask a question.

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