Question

How do you align the text of a JLabel in Java?

Answer 1

You can align the text of a JLabel in Java using the setHorizontalAlignment() and setVerticalAlignment() methods. These methods allow you to specify the horizontal and vertical alignment of the text within the JLabel. 

Here's an example code snippet that demonstrates how to align the text of a JLabel:

import javax.swing.*;

public class MyFrame extends JFrame {
    public MyFrame() {
        // create a new JLabel
        JLabel label = new JLabel("Hello, world!");

        // set the horizontal and vertical alignment of the text
        label.setHorizontalAlignment(SwingConstants.CENTER);
        label.setVerticalAlignment(SwingConstants.CENTER);

        // add the JLabel to the JFrame
        add(label);

        // set the size and visibility of the JFrame
        setSize(300, 300);
        setVisible(true);
    }

    public static void main(String[] args) {
        new MyFrame();
    }
}
 

In this example, we create a new JLabel with the text "Hello, world!" and align the text both horizontally and vertically to the center of the JLabel using the setHorizontalAlignment() and setVerticalAlignment() methods with the SwingConstants.CENTER constant as a parameter. We then add the JLabel to the JFrame using the add() method. Finally, we set the size and visibility of the JFrame.

Note that you can also align the text of a JLabel when you create it by passing the horizontal and vertical alignment constants as parameters to the JLabel constructor. 

For example:

JLabel label = new JLabel("Hello, world!", SwingConstants.CENTER);
 

This will create a new JLabel with the text "Hello, world!" and aligned to the center both horizontally and vertically.