java科学计算器(进制转换)

indowOpened(WindowEvent e) { }Р public void windowActivated(WindowEvent e) { }Р public void windowDeactivated(WindowEvent e) { }Р public void windowClosed(WindowEvent e) { }Р public void windowIconified(WindowEvent e) { }Р public void windowDeiconified(WindowEvent e) { }Р Р?public static void main(String args[]) Р?{Р Calculator calculator=new Calculator();Р?}Р}Рclass WinClose implements WindowListenerР{Р?public void windowClosing(WindowEvent e) //单击窗口关闭按钮时触发并执行实现窗口监听器接口中的方法Р?{Р System.exit(0); //结束程序运行Р?}Р?public void windowOpened(WindowEvent e){}Р?public void windowActivated(WindowEvent e){}Р?public void windowDeactivated(WindowEvent e){}Р?public void windowClosed(WindowEvent e){}Р?public void windowIconified(WindowEvent e){}Р?public void windowDeiconified(WindowEvent e){}Р}Р五、程序运行结果Р1.界面