import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JSlider;
public class MainClass {
public static void main(String args[]) throws Exception {
JFrame frame = new JFrame("Filled Slider");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JSlider js1 = new JSlider();
js1.putClientProperty("JSlider.isFilled", Boolean.TRUE);
JSlider js2 = new JSlider();
js2.putClientProperty("JSlider.isFilled", Boolean.FALSE);
frame.getContentPane().add(js1, BorderLayout.NORTH);
frame.getContentPane().add(js2, BorderLayout.SOUTH);
frame.setSize(300, 200);
frame.setVisible(true);
}
}