我正在尝试制作一个程序来调用我的第二个Java类，它由背景播放的音乐和一个JFrame组成。 第一个Jframe有一个PLAY按钮。 我如何完全调用另一个Java类（使用try and catch，JFrame等）并关闭我的第一个Java类？

这是我的第一个Java类的输出

这是我第一节Java课的代码。

public class Instruction extends JFrame implements ActionListener {
void introSound(String musicLocation)
{
    try {
        File musicPath = new File (musicLocation);

        if (musicPath.exists()){
            AudioInputStream audioInput = AudioSystem.getAudioInputStream(musicPath);
            Clip clip = AudioSystem.getClip();
            clip.open(audioInput);
            clip.start();
            clip.loop(Clip.LOOP_CONTINUOUSLY);
        }
        else {
            System.out.println("Can't find file");
        }
    }
    catch (Exception ex){
        ex.printStackTrace();
    }
}

//JButton
JButton goNextFrameBtn = new JButton("PLAY");

JFrame insFrame = new JFrame();

Instruction() {prepGUI();}

public void prepGUI(){
    insFrame.setTitle("The Phineas and Ferb MATH QUIZ");
    insFrame.setSize(1050, 670);
    insFrame.setBackground(Color.RED);
    insFrame.getContentPane().setLayout(null);
    insFrame.setContentPane(new JLabel(new ImageIcon("BG1.JPG")));
    insFrame.setResizable(false);
    insFrame.setLocationRelativeTo(null);
    insFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    insFrame.setVisible(true);

    //adding JButton
    goNextFrameBtn.setFont(new Font("Ferbtastic", Font.BOLD, 50));
    goNextFrameBtn.setBounds(850,520,150,80);
    insFrame.add(goNextFrameBtn);

    goNextFrameBtn.addActionListener(this);
}

public void actionPerformed (ActionEvent e){
    if (e.getSource() == goNextFrameBtn) {
        insFrame.dispose();
        new PnFMathQuiz();
    }
}

public static void main(String[] args) {
    String filepath = "PnF Theme Song.wav";

    Instruction musicObject = new Instruction();
    musicObject.introSound(filepath);
} }

这是我的第二个Java类的代码，我想通过点击PLAY按钮打开它

public class PnFMathQuiz extends JFrame{
void playSound(String musicLocation)
{
    try {
        File musicPath = new File (musicLocation);

        if (musicPath.exists()){
            AudioInputStream audioInput = AudioSystem.getAudioInputStream(musicPath);
            Clip clip = AudioSystem.getClip();
            clip.open(audioInput);
            clip.start();
            clip.loop(Clip.LOOP_CONTINUOUSLY);
        }
        else {
            System.out.println("Can't find file");
        }
    }
    catch (Exception ex){
        ex.printStackTrace();
    }
}
JFrame frame = new JFrame();

PnFMathQuiz() {
    prepareGUI();
}

public void prepareGUI() {
    frame.setTitle("The Phineas and Ferb MATH QUIZ");
    frame.setSize(1500, 1000);
    frame.getContentPane().setLayout(null);
    frame.setContentPane(new JLabel(new ImageIcon("BG2.JPG")));
    frame.setResizable(false);
    frame.setLocationRelativeTo(null);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);   

public static void main(String[] args) {
    String filepath = "Quirky Worky Song.wav";

    PnFMathQuiz musicObject = new PnFMathQuiz();
    musicObject.playSound(filepath);
}  }

我希望你能帮我做这件事，谢谢你。