关闭 JApplet jFrame 而不关闭 JFrame

Question

我在我的父 JFrame 上放置了一个按钮，单击它会打开一个 JAppletFrame，现在当我关闭 JAppletFrame 时，整个应用程序都会关闭。那么有什么方法只关闭我的子框架而不关闭父框架吗？这里是代码

public static void main(String[] args) {

    applet = new HearDAHDSR();


    //User defined class containing the frames
    window = new window1();
    //window2 window = new window2();
    //then you set to your node
    frame = window.frame();
    frame.setSize(700, 500);
    frame.setVisible(true);

    //User defined class containing all panels
    panel = new Panels();

    StringBuilder b = new StringBuilder();

    //Retrieving the width and height of the frame
    w = frame.getContentPane().getWidth();
    h = frame.getContentPane().getHeight();

    //
    JPanel bar_panel = panel.Bar();
    JPanel tabbed_playlist = panel.Playlist(w,h);

    frame.getContentPane().add(bar_panel, BorderLayout.NORTH);

    JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
    frame.getContentPane().add(tabbedPane, BorderLayout.CENTER);

    //Adding the Playlist and Library tabs
    tabbedPane.addTab("Playlist", tabbed_playlist);
    tabbedPane.addTab("Library", panel.Library(w,h));

    launch(args);;
}


}
public static void effect2(){
    frame2 = new JAppletFrame( "Effect", applet );
    frame2.setSize( 440, 300 );
    frame2.setVisible( true );
    frame2.test();
    frame2.setDefaultCloseOperation(frame2.EXIT_ON_CLOSE);

}

Answer 1

frame2.setDefaultCloseOperation(frame2.EXIT_ON_CLOSE);

不要使用EXIT_ON_CLOSE。而是使用：

frame2.setDefaultCloseOperation(frame2.DISPOSE_ON_CLOSE);

如果 applet 框架是唯一的框架，则 JVM 将退出，但如果打开了多个框架，则另一个框架将保持打开状态。