?? jsliderdemo.java
字號:
package components;
import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JSlider;
import javax.swing.SwingConstants;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class JSliderDemo extends JFrame {
private static final long serialVersionUID = 1L;
public JSliderDemo() {
final JSlider slider = new JSlider(SwingConstants.HORIZONTAL,0,100,25);
slider.setMajorTickSpacing(10);
slider.setInverted(true);
slider.setPaintTicks(true);
// slider.setMajorTickSpacing(5);
// slider.setPaintTicks(true);
final JLabel displayLabel = new JLabel("" + slider.getValue());;
slider.addChangeListener(
new ChangeListener() {
public void stateChanged(ChangeEvent e) {
displayLabel.setText("" + slider.getValue());
}
}
);
Container container = getContentPane();
container.setLayout(new FlowLayout());
container.add(slider);
container.add(displayLabel);
container.setBackground(Color.RED);
setSize(400,400);
setVisible(true);
}
public static void main(String[] args) {
JSliderDemo application = new JSliderDemo();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
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