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Thread: how to put changeable value in JTextField?

  1. #26
    Super Moderator Norm's Avatar
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    Default Re: how to put changeable value in JTextField?

    Is the textfield whose setText() method you are calling, visible in the GUI?
    Print out the values of aa and aa.textField where the call to setText() is.
    If you don't understand my answer, don't ignore it, ask a question.

  2. #27
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    Default Re: how to put changeable value in JTextField?

    aa: Zaidimas.baaaa@b162d5
    aa.textField: javax.swing.JTextField[,21,114,65x20,invalid,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@1cfb549,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=0,columnWidth=0,command=,horizontalAlignment=LEADING]

  3. #28
    Super Moderator Norm's Avatar
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    Default Re: how to put changeable value in JTextField?

    Is the textfield whose setText() method you are calling, visible in the GUI?

    aa.textField: javax.swing.JTextField[,21,114,65x20,invalid,
    Last edited by Norm; May 19th, 2012 at 12:41 PM.
    If you don't understand my answer, don't ignore it, ask a question.

  4. #29
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    Default Re: how to put changeable value in JTextField?

    how it can be invisible if it is declared:
    public JTextField textField;

    and it is set:
    textField.setVisible(true);

  5. #30
    Super Moderator Norm's Avatar
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    Default Re: how to put changeable value in JTextField?

    I do not think You can have a non window component visible by itself without its containing window being visible.

    How many instances of the window/frame class that contains the textfield does the code create? Are all of them visible?
    If you don't understand my answer, don't ignore it, ask a question.

  6. #31
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    Default Re: how to put changeable value in JTextField?

    I do not think You can have a non window component visible by itself without its containing window being visible.
    what do you mean?
    i can see that textbox, when i run my project.
    and as i said, if I use setText() method in the same (baaaa) class, i can see the value of the textbox.

    How many instances of the window/frame class that contains the textfield does the code create? Are all of them visible?
    one instance of a frame class is in a ball class where i'm trying to set that textfield value (after ball hits a block). thats all.

  7. #32
    Super Moderator Norm's Avatar
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    Default Re: how to put changeable value in JTextField?

    How many instances of the frame with the textfield do you create? Are they all visible?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: how to put changeable value in JTextField?

    i don't get it... sorry, my english skills are poor, specially about programming things

  9. #34
    Super Moderator Norm's Avatar
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    Default Re: how to put changeable value in JTextField?

    Add a println next to the statement that creates the textfield. If it prints more than once you have two text fields, one visible and one hidden. If you change the contents of the hidden one you will not see any changes in the visible one.

    Otherwise you will have to create a small, simple program that compiles, executes and shows the problem. I don't know what the code is doing without seeing it and and having a version I can test.
    If you don't understand my answer, don't ignore it, ask a question.

  10. The Following User Says Thank You to Norm For This Useful Post:

    scorpas (May 21st, 2012)

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    Default Re: how to put changeable value in JTextField?

    actually, i rewrote my JFrame class.
    delete those instance of JFrame class in other classes.
    when i call setText() method by just writing:
    class_name.textField.setText(Integer.toString(app. score));
    and it works!

    Forum was offline, im allready finished my project.
    Tomorow i will try to get some grade from my teacher

    thanks Norm, for trying.

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