Swing的JFrame窗体跳转及关闭问题
我通过窗体A 调用 窗体 B，点击窗体B右上角的x关闭窗体B，然后就退出整个程序了
请问怎么才能关闭B，但是保留A呢
A是用SwingUtilities.invokeLater执行的
A的调用代码：
ChatView.main(null);
public static void main(String[] args) throws InvocationTargetException, InterruptedException{
SwingUtilities.invokeLater(new Runnable(){
public void run() {
JFrame.setDefaultLookAndFeelDecorated(true);
JDialog.setDefaultLookAndFeelDecorated(true);
try {
//设置皮肤
UIManager.setLookAndFeel( new SubstanceOfficeBlue2007LookAndFeel());
} catch (UnsupportedLookAndFeelException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ChatView cv = new ChatView();
name = "大肚腩";
cv.setTitle(name);
cv.setSize(500,400);
//cv.setResizable(false); //不允许用户改变窗口大小
cv.setDefaultCloseOperation(EXIT_ON_CLOSE);
// com.sun.awt.AWTUtilities.setWindowOpacity(cv, .7f);
cv.setVisible(true);
cv.setLocationRelativeTo(null);
}
});
}