How to add text to JFrame

Question

So I am designing a JFrame using Eclipse WindowBuilder  This specific frame is an error message stating that the user provided invalid credentials  I have added a button to exit the frame and I now need to display the actual error message  The login credentials specified are invalid  Please provide valid credentials    I have done some searching and everyone says to use a JLabel  but when I create my JLabel and enter the text to it  there is no wordwrap or anything so I can t fit the label inside my frame    What is an easy way to simply display a message in the center of the JFrame

User · Answer

Instead of wasting your time to design a JFrame just to display a error message, you can use an JOptionPane which is by default modal:

import javax.swing.JOptionPane;

public class Main {

    public static void main(String[] args) {
        JOptionPane.showMessageDialog(null, "Your message goes here!","Message", JOptionPane.ERROR_MESSAGE);
    }
}

enter image description here

P.S. Stop using Windowbuilder if you want to learn Swing.

User · Answer

To create a label for text   JLabel label1   new JLabel  Test      To change the text in the label   label1 setText  Label Text      And finally to clear the label   label1 setText        And all you have to do is place the label in your layout  or whatever layout system you are using  and then just add it to the JFrame

User · Answer

The easiest way to add a text to a JFrame   JFrame window   new JFrame  JFrame with text     window setDefaultCloseOperation JFrame EXIT ON CLOSE   window setLayout new BorderLayout     window add new JLabel  Hello World    BorderLayout CENTER   window pack    window setVisible true   window setLocationRelativeTo null

User · Answer

You can add a multi-line label with the following   JLabel label   new JLabel  My label     label setText   lt html gt This is a lt br gt multline label  lt br gt  Try it yourself  lt  html gt       From here  simply add the label to the frame using the add   method  and you re all set

User · Answer

when I create my JLabel and enter the text to it  there is no wordwrap or anything   HTML formatting can be used to cause word wrap in any Swing component that offers styled text   E G  as demonstrated in this answer

[java] How to add text to JFrame?

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