制作applet _applet

书史足自悦，安用勤与劬。这篇文章主要讲述制作applet相关的知识，希望能为你提供帮助。
我有问题，我没有得到我的结果，为什么？

public class cycle extends JApplet implements ActionListener {Panel panel = new Panel(); JButton left = new JButton("left"); JButton right = new JButton("right"); Container c = getContentPane(); public void frame() { Panel panel = new Panel(); JButton left = new JButton("left"); JButton right = new JButton("right"); c.add(left); c.add(right); }public static void main(String[] args) { JFrame f = new JFrame(); f.setTitle("Move the ball"); f.setSize(500, 500); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setVisible(true); }@Override public void actionPerformed(ActionEvent e) { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. }}

答案以这种方式更改您的代码：

将Buttons添加到你的JPanel
将Panel添加到ContentPane
将cycle对象添加到JFrame

这是修改后的代码

public class cycle extends JApplet implements ActionListener {private JPanel panel; private JButton left; private JButton right; private Container c = getContentPane(); public cycle() { panel = new JPanel(); left = new JButton("left"); right = new JButton("right"); panel.add(left); panel.add(right); c.add(panel); }public static void main(String[] args) { JFrame f = new JFrame(); f.setTitle("Move the ball"); f.setSize(500, 500); f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); f.add(new cycle()); f.setVisible(true); }@Override public void actionPerformed(ActionEvent e) { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. }}

【制作applet】也：