task.java

java 编写的定时关机,可以设置定时关机任务.

package part1;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;

import javax.swing.*;
public class task extends JFrame implements ActionListener{
	static int cH=0;
	static int ch=0;
	static int cM=0;
	static int cm=0;
	static int cS=0;
	static int cs=0;
	public static String taskmsg=null;
	FlowLayout fl0=new FlowLayout();
	JLabel tjl0=new JLabel("请设置关机时间:");
	JLabel tjl1=new JLabel(":");
	JLabel tjl2=new JLabel(":");
	JTextField jt0=new JTextField(2);
	JTextField jt1=new JTextField(2);
	JTextField jt2=new JTextField(2);
	JButton tjb0=new JButton("确定");
	JButton tjb1=new JButton("取消");
	task(){
		super("关机任务");
		setSize(250,200);
		setResizable(false);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.getContentPane().setLayout(fl0);
		this.getContentPane().add(tjl0);
		this.getContentPane().add(jt0);
		this.getContentPane().add(tjl1);
		this.getContentPane().add(jt1);
		this.getContentPane().add(tjl2);
		this.getContentPane().add(jt2);
		this.getContentPane().add(tjb0);
		this.getContentPane().add(tjb1);
		tjb0.addActionListener(this);
		tjb1.addActionListener(this);
		Toolkit kit=Toolkit.getDefaultToolkit();
		Dimension screenSize=kit.getScreenSize();
		Dimension frameSize=this.getSize();
		if(frameSize.height>screenSize.height){
			frameSize.height=screenSize.height;
		}
		if(frameSize.width>screenSize.width){
			frameSize.width=screenSize.width;
		}
		this.setLocation((screenSize.width-frameSize.width)/2,(screenSize.height-frameSize.height)/2);
		setVisible(true);
	}

	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		if(e.getSource()==tjb1)
			setVisible(false);
		if(e.getSource()==tjb0){
			if(Integer.parseInt(jt0.getText().trim())<=24&&Integer.parseInt(jt1.getText().trim())<=59&&Integer.parseInt(jt2.getText().trim())<=59){
			taskmsg=jt0.getText().trim()+":"+jt1.getText().trim()+":"+jt2.getText().trim();
			//setVisible(false);
			}
			else
			{
				JLabel warm=new JLabel("时间设置有误，请重新设置!");
				JOptionPane warmi=new JOptionPane();
				warmi.showMessageDialog(null, warm,"出错了",JOptionPane.ERROR_MESSAGE);
				jt0.setText("");
				jt1.setText("");
				jt2.setText("");
			}
			if(taskmsg!=null){
				cH=Integer.parseInt((jt0.getText().trim()).substring(0,2))-(10*timer.H+timer.h);
				cM=Integer.parseInt((jt1.getText().trim()).substring(0,1))-timer.M;
				cm=Integer.parseInt((jt1.getText().trim()).substring(1,2))-timer.m;
				cS=Integer.parseInt((jt2.getText().trim()).substring(0,1))-timer.S;
				cs=Integer.parseInt((jt2.getText().trim()).substring(1,2))-timer.s;
				if(cs<0){
					cs+=10;
					cS-=1;
				}
				if(cS<0){
					cS+=6;
					cm-=1;
				}
				if(cm<0){
					cm+=10;
					cM-=1;
				}
				if(cM<0){
					cM+=6;
					cH-=1;
				}
				
				if(cH<0){
					cH+=24;
				}
				/*if(cH>=20&&cH<24){
					ch=cH-20;
					cH=2;	
				}
				if(cH>=10&&cH<20){
					ch=cH-10;
					cH=1;
				}
				if(cH>=0&&cH<10){
					ch=cH;
					cH=0;
				}*/
	    		timer.jlt.setText("系统将在预设的时间关闭:"+task.taskmsg);
	    		timer.jlt0.setText("距离设定的关机任务时间还有:");
	    		timer.jltc0.setText(cH+":"+cM+""+cm+":"+cS+""+cs);
	    		dcounter inc=new dcounter();
	    		inc.start();
	    		setVisible(false);
	    	}
		}
		
	}
	class dcounter extends Thread{
		public void run(){
			//boolean stopc=false;
			while(true){
				timer.jltc0.setText(cH+":"+cM+""+cm+":"+cS+""+cs);
				try {
					this.sleep(1000);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				cs--;
				if(cH==0&&cM==0&&cm==0&&cS==0&&cs<0){
					new closewin();
					this.stop();
				}
				if(cs<0){
					cS-=1;
					cs=9;
				}
				if(cS<0){
					cS=5;
					cm-=1;
				}
				if(cm<0){
					cm=9;
					cM-=1;
				}
				if(cM<0){
					cM=5;
					cH-=1;
				}
				
				
			}
		}
	}
	class closewin{
		closewin(){
			String command = "shutdown -s -t 00"; 
			try { 
			Runtime.getRuntime().exec(command); 
			} catch (IOException e) { 
			// TODO Auto-generated catch block 
			e.printStackTrace(); 
			} 

		}
		
	}

}