有几个月没写博客了，主要是实在没得写= =今天下午闲着无聊写个定时关机的程序发来玩玩，没什么技术含量...就是Runtime类的exec()方法调用系统关机命令 实际代码就2行 其他大部分都是GUI的。。。

PS.不会用EXE4J 不知道怎么转换成EXE文件执行

程序主界面

package TreeTools;

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import java.io.*;

public class TimingShutdown {

public Frame f = new Frame("TimingShutdown");

public Panel p = new Panel();

public Button setButton = new Button("ShutDown");

public Button cancelButton = new Button("Cancel");

public TextField tf = new TextField("input the timing(min)",20);

public Runtime rt = Runtime.getRuntime();

//creat window

public void getFrame(){

p.add(tf);

p.add(setButton);

p.add(cancelButton);

f.add(p);

f.pack();

f.setVisible(true);

}

//process event

public void init(){

f.addWindowListener(new fFrameListener());

setButton.addActionListener(new setButtonListener());

cancelButton.addActionListener(new cancelButtonListener());

}

//creat Window's Listener to shutdown Window

class fFrameListener implements WindowListener{

public void windowClosing(WindowEvent we){

System.exit(0);

}

public void windowDeactivated(WindowEvent we){}

public void windowActivated(WindowEvent we){}

public void windowDeiconified(WindowEvent we){}

public void windowIconified(WindowEvent we){}

public void windowClosed(WindowEvent we){}

public void windowOpened(WindowEvent we){}

}

//creat setButton's Listener to shutdown pc

class setButtonListener implements ActionListener{

public void actionPerformed(ActionEvent e){

String setTiming = tf.getText();

int timing = new Integer(setTiming);

timing *= 60;

setTiming = "shutdown.exe -s -t " + timing;

try{

rt.exec(setTiming);

}

catch(IOException exc){

;

}

}

}

//creat cancelButton's Listener to cancel showdown plan

class cancelButtonListener implements ActionListener{

public void actionPerformed(ActionEvent e){

try{

rt.exec("shutdown.exe -a");

}

catch(IOException exc){

;

}

}

}

public static void main(String[] args) throws Exception{

TimingShutdown ts = new TimingShutdown();

ts.init();

ts.getFrame();

}

}