How to Change Font Size and Font Style of a JLabel
In this tutorial, we are going to see how to change the font size and font style of a JLabel in Java Swing. JLabel is an area to display short text or an image, or both, it is a basic GUI component defined in the Java Swing library. A label does not react to input events. Therefore, it cannot get keyboard focus.
How to change font size of the JLabel
JLabel label = new JLabel("This is a label!");
label.setFont(new Font("Serif", Font.BOLD, 20));
JFrame frame = new JFrame();
frame.add(label);
frame.setVisible(true);
Output:
How to change the color of the JLabel
label.setForeground(Color.RED);
Output:
How to change the background color of the JLabel
label.setBackground(Color.ORANGE); label.setOpaque(true);
Output:
How to center the text in a JLabel
label = new JLabel("This is a label!", SwingConstants.CENTER);
Output:
Complete Example: How to Change Font Size and Font Style of a JLabel
import java.awt.*;
import javax.swing.*;
public class StyleJLabel
{
StyleJLabel()
{
JFrame frame = new JFrame();
frame.setLayout(new GridLayout(4,1));
JLabel label = new JLabel("This is a label!", SwingConstants.CENTER);
label.setFont(new Font("Serif", Font.BOLD, 20));
label.setForeground(Color.RED);
label.setBackground(Color.ORANGE);
label.setOpaque(true);
frame.add(label);
frame.setSize(300,150);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] args)
{
new StyleJLabel();
}
}
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