JSlider in Java Swing

Following is a simple example of how we can create and use a JSlider in Java Swing to control a value. In this example, we’ll create a GUI application that has a slider and a label to display the current value selected by the slider:

import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JSlider;
import javax.swing.SwingUtilities;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class JSliderDemo {
	public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            createAndShowGUI();
        });
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("JSlider Demo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 150);
        frame.setLayout(new FlowLayout());

        // Create a label to display the slider value
        JLabel valueLabel = new JLabel("Selected Value: 0");
        frame.add(valueLabel);

        // Create a slider
        JSlider slider = new JSlider(JSlider.HORIZONTAL, 0, 100, 0);
        slider.setMajorTickSpacing(20);
        slider.setMinorTickSpacing(5);
        slider.setPaintTicks(true);
        slider.setPaintLabels(true);

        // Add a change listener to the slider
        slider.addChangeListener(new ChangeListener() {
            @Override
            public void stateChanged(ChangeEvent e) {
                int selectedValue = slider.getValue();
                valueLabel.setText("Selected Value: " + selectedValue);
            }
        });

        frame.add(slider);
        frame.setVisible(true);
    }
}

Output: