JSlider: addChangeListener(ChangeListener l) : JSlider « javax.swing « Java by API

1. Java by API
2. javax.swing
3. JSlider

JSlider: addChangeListener(ChangeListener l)

 

import java.awt.Dimension;

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

public class Main {
  public static void main(String[] args) {
    JFrame f = new JFrame();
    final JSlider slider = new JSlider(0, 150, 0);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    slider.setPreferredSize(new Dimension(150, 30));
    slider.addChangeListener(new ChangeListener() {
      public void stateChanged(ChangeEvent event) {
        int value = slider.getValue();
        if (value == 0) {
          System.out.println("0");
        } else if (value > 0 && value <= 30) {
          System.out.println("value > 0 && value <= 30");
        } else if (value > 30 && value < 80) {
          System.out.println("value > 30 && value < 80");
        } else {
          System.out.println("max");
        }
      }
    });
    f.add(slider);
    f.pack();
    f.setLocationRelativeTo(null);
    f.setVisible(true);
  }
}

   
  

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