// A little program that demonstrates JSliders. import java.awt.*; import javax.swing.*; import javax.swing.event.*; public class SliderDemo extends JPanel implements ChangeListener { /** * A main routine allows this class to be run as an application. */ public static void main(String[] args) { JFrame window = new JFrame("Slider Demo"); SliderDemo content = new SliderDemo(); window.setContentPane(content); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); window.setLocation(120,70); window.setSize(350,200); window.setVisible(true); } //--------------------------------------------------------------------- JSlider slider1, slider2, slider3; // The sliders. JLabel label; // A label for reporting changes in the sliders' values. public SliderDemo() { setLayout(new GridLayout(4,1)); setBorder(BorderFactory.createCompoundBorder( BorderFactory.createLineBorder(Color.DARK_GRAY, 2), BorderFactory.createEmptyBorder(8,8,8,8))); label = new JLabel("Try dragging the sliders!", JLabel.CENTER); add(label); slider1 = new JSlider(0,10,0); slider1.addChangeListener(this); add(slider1); slider2 = new JSlider(); slider2.addChangeListener(this); slider2.setMajorTickSpacing(25); slider2.setMinorTickSpacing(5); slider2.setPaintTicks(true); add(slider2); slider3 = new JSlider(2000,2100,2014); slider3.addChangeListener(this); slider3.setLabelTable(slider3.createStandardLabels(50)); slider3.setPaintLabels(true); add(slider3); } // end constructor public void stateChanged(ChangeEvent evt) { if (evt.getSource() == slider1) label.setText("Slider one changed to " + slider1.getValue()); else if (evt.getSource() == slider2) label.setText("Slider two changed to " + slider2.getValue()); else if (evt.getSource() == slider3) label.setText("Slider three changed to " + slider3.getValue()); } }