How to present a simple alert message in java?

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无人及你
无人及你 2020-12-07 11:00

Coming from .NET i am so used calling Alert() in desktop apps. However in this java desktop app, I just want to alert a message saying \"thank you for using java\" I have to

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  • 2020-12-07 11:24

    If you don't like "verbosity" you can always wrap your code in a short method:

    private void msgbox(String s){
       JOptionPane.showMessageDialog(null, s);
    }
    

    and the usage:

    msgbox("don't touch that!");
    
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  • 2020-12-07 11:25

    Call "setWarningMsg()" Method and pass the text that you want to show.

    exm:- setWarningMsg("thank you for using java");
    
    
    public static void setWarningMsg(String text){
        Toolkit.getDefaultToolkit().beep();
        JOptionPane optionPane = new JOptionPane(text,JOptionPane.WARNING_MESSAGE);
        JDialog dialog = optionPane.createDialog("Warning!");
        dialog.setAlwaysOnTop(true);
        dialog.setVisible(true);
    }
    

    Or Just use

    JOptionPane optionPane = new JOptionPane("thank you for using java",JOptionPane.WARNING_MESSAGE);
    JDialog dialog = optionPane.createDialog("Warning!");
    dialog.setAlwaysOnTop(true); // to show top of all other application
    dialog.setVisible(true); // to visible the dialog
    

    You can use JOptionPane. (WARNING_MESSAGE or INFORMATION_MESSAGE or ERROR_MESSAGE)

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  • 2020-12-07 11:30

    Even without importing swing, you can get the call in one, all be it long, string. Otherwise just use the swing import and simple call:

    JOptionPane.showMessageDialog(null, "Thank you for using Java", "Yay, java", JOptionPane.PLAIN_MESSAGE);
    

    Easy enough.

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  • 2020-12-07 11:46

    I'll be the first to admit Java can be very verbose, but I don't think this is unreasonable:

    JOptionPane.showMessageDialog(null, "My Goodness, this is so concise");
    

    If you statically import javax.swing.JOptionPane.showMessageDialog using:

    import static javax.swing.JOptionPane.showMessageDialog;
    

    This further reduces to

    showMessageDialog(null, "This is even shorter");
    
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  • 2020-12-07 11:47

    Assuming you already have a JFrame to call this from:

    JOptionPane.showMessageDialog(frame, "thank you for using java");
    

    See The Java Tutorials: How to Make Dialogs
    See the JavaDoc

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