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Thread: Why can't I get my variable to display?

  1. #1
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    Default Why can't I get my variable to display?

    I trying to display the value of a variable from a method, but I don't know why it will I can't do it. Can anyone help please?...

    [Highlight]


    //Java extension package
    import javax.swing.JOptionPane;

    public class Palindrome
    {

    public static void main(String[] args)
    {
    int number = 0;
    int palindrome = 0;

    palindrome = retriveInput(number);

    display(palindrome); //Error: Cannot make a static reference to the non-static method display(int) from the type Palindrome

    }

    public static int retriveInput(int numInput)
    {
    String userInput = "";

    userInput = JOptionPane.showInputDialog("Enter five digit number:");
    numInput = Integer.parseInt(userInput);

    return numInput;
    }

    public void display(int test)
    {
    System.out.print(test);
    }

    }

    [Highlight]


  2. #2
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    Default Re: Why can't I get my variable to display?

    Hi geovanniluna,
    I suggest that you do a quick Google search for "Cannot make a static reference to the non-static method" and perhaps look more into what the static keyword means and how/when it should be used.

  3. #3
    Super Moderator Norm's Avatar
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    Default Re: Why can't I get my variable to display?

    Please edit your post and wrap your code with code tags:
    [code=java]
    YOUR CODE GOES HERE
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

  4. #4
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    Default Re: Why can't I get my variable to display?

    If you are getting errors you should post the entire error message.

  5. #5
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    Default Re: Why can't I get my variable to display?

    Welcome to the forum! Please read this topic to learn how to post code in code or highlight tags and other useful info for new members.

    Please post your code correctly per the above link.

  6. #6
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    Default Re: Why can't I get my variable to display?

    the method "display" is non-static.. but this method is call inside a static main method.. because of this error occurs..
    change the method "display" to static..

  7. #7
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    Default Re: Why can't I get my variable to display?

    public static int retriveInput(int numInput)

    Just like Nijan said...

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