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Thread: Need help with user input/output for GUI.

  1. #1
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    Default Need help with user input/output for GUI.

    //This is my code so far. I'm suppose to have the user enter this:

    user enters a int between <= 12 then would display this message Howdy youngster

    user enters a int between >12 and <20 then would display another message displays You're getting old. etc..





    I dont know how to set it up so the number i enter coordinates with the right message.





    public class L4_SimpleCalc
    {
    public static void main (String arg[] )
    {
    JOptionPane.showMessageDialog(null, "The Old Man says:");

    //Read in a value
    String enterNum = JOptionPane.showInputDialog(null, "What is your age?:");

    //convert string to a number
    double num1 = Double.parseDouble(enterNum);

    JOptionPane.showMessageDialog(null, "Howdy youngster!");
    JOptionPane.showMessageDialog(null, "Howdy, you're on your way!!");
    JOptionPane.showMessageDialog(null, "Howdy, you're a mover and a shaker!");
    JOptionPane.showMessageDialog(null, "Howdy, old timer!");






























    }


    }


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Need help with user input/output for GUI.

    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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  3. #3
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    Default Re: Need help with user input/output for GUI.

    import javax.swing.*;
    public class L4_SimpleCalc
    {
    public static void main (String[] args)
    {
    JOptionPane.showMessageDialog(null, "The Old Man says:");

    //Read in a value
    String enterNum = JOptionPane.showInputDialog(null, "What is your age?:");


    int age;
    char text;

    if (age <= 12){
    text = "Howdy uoungster!";
    } else if (age >12 and <20){
    text = "Howdy, you're on your way!!";
    } else if (age >=20 and <40){
    text = "Howdy, you're a mover and a shaker!";
    } else if (age >=40){
    text = "Howdy, old timer!";
    } else {
    text = "too old";

    }


    }

  4. #4
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    Default Re: Need help with user input/output for GUI.

    This still isnt right but im on the right track I need it to work like that. how do i enter a value and have it come out in GUI with the right message?

    Quote Originally Posted by Tctwins View Post
    import javax.swing.*;
    public class L4_SimpleCalc
    {
    public static void main (String[] args)
    {
    JOptionPane.showMessageDialog(null, "The Old Man says:");

    //Read in a value
    String enterNum = JOptionPane.showInputDialog(null, "What is your age?:");


    int age;
    char text;

    if (age <= 12){
    text = "Howdy uoungster!";
    } else if (age >12 and <20){
    text = "Howdy, you're on your way!!";
    } else if (age >=20 and <40){
    text = "Howdy, you're a mover and a shaker!";
    } else if (age >=40){
    text = "Howdy, old timer!";
    } else {
    text = "too old";

    }


    }

  5. #5
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Need help with user input/output for GUI.

    When do you set age? What do you do with enterNum?
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  6. #6
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    Default Re: Need help with user input/output for GUI.

    Quote Originally Posted by KevinWorkman View Post
    When do you set age? What do you do with enterNum?
    im lost..bad. I just wanna be able to enter a number and have that number go to the correct statement. if you could guide me out a little bit it would be a better learning process.

  7. #7
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Need help with user input/output for GUI.

    If you figure out the answers to the question I asked you, you'll figure out why you're getting compiler errors.
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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