Intermediate Java(24) - Building the Window for the Slider

創造新的class稱為TheWindow:

import java.awt.*;

import javax.swing.*;

import javax.swing.event.*;

public class TheWindow extends JFrame {

private JSlider slider;

private DrawOval myPanel;

public TheWindow(){

super("The Title");

myPanel = new DrawOval(); → 這個對象是從DrawOval調用

myPanel.setBackground(Color.orange);

slider = new JSlider(SwingConstants.HORIZONTAL,0,200,10);

slider.setMajorTickSpacing(10); → 每次click移動10像素

slider.setPaintTicks(true); → 在屏幕上繪製

}

}

slider = new JSlider(SwingConstants.HORIZONTAL,0,200,10); → slider是橫向水平 0是最低的，200是最大