import java.util.Timer;
import java.util.TimerTask;
import java.awt.Toolkit;/**
* Simple demo that uses java.util.Timer to schedule a task to execute
* once 5 seconds have passed.
*/public class ReminderBeep {
Toolkit toolkit;
Timer timer; public ReminderBeep(int seconds) {
toolkit = Toolkit.getDefaultToolkit();
timer = new Timer();
timer.schedule(new RemindTask(), seconds*1000);
} class RemindTask extends TimerTask {
public void run() {
System.out.println("Time's up!");
toolkit.beep();
//timer.cancel(); //Not necessary because we call System.exit
System.exit(0); //Stops the AWT thread (and everything else)
}
} public static void main(String args[]) {
System.out.println("About to schedule task.");
new ReminderBeep(5);
System.out.println("Task scheduled.");
}
}---------------------
import java.io.*;public class test extends Thread {
File file=null;
public test() {
try {
file=new File("c:/beyond_xiruo");
if(!file.exists())//如果不存在就创建该目录
file.mkdirs();
file=new File("c:/beyond_xiruo/note.txt");
if(!file.exists())
file.createNewFile();
}catch(Exception e){System.out.println(e.toString());}
this.start();
}
public void run() {
try{
String str="abcdefghijklmnopqrstuvwxyz";
int i=0;
java.io.BufferedReader br=null;
java.io.BufferedWriter bw=null;
String s="";
while(true) {
br=new java.io.BufferedReader(new FileReader(file));
String s1="";
while((s1=br.readLine())!=null) {
s+=s1;
}
s+="\t"+str.substring(i,i+1);
System.out.println(s);
bw=new java.io.BufferedWriter(new FileWriter(file));
bw.write(s);
i++;
if(i>=str.length())
break;
this.sleep(100);//定时为100毫秒往文件里写一个字符
}
br.close();
bw.close();
}catch(Exception e){System.out.println(e.toString());}
}
//Main method
public static void main(String[] args) {
new test();
}
}
import java.util.TimerTask;
import java.awt.Toolkit;/**
* Simple demo that uses java.util.Timer to schedule a task to execute
* once 5 seconds have passed.
*/public class ReminderBeep {
Toolkit toolkit;
Timer timer; public ReminderBeep(int seconds) {
toolkit = Toolkit.getDefaultToolkit();
timer = new Timer();
timer.schedule(new RemindTask(), seconds*1000);
} class RemindTask extends TimerTask {
public void run() {
System.out.println("Time's up!");
toolkit.beep();
//timer.cancel(); //Not necessary because we call System.exit
System.exit(0); //Stops the AWT thread (and everything else)
}
} public static void main(String args[]) {
System.out.println("About to schedule task.");
new ReminderBeep(5);
System.out.println("Task scheduled.");
}
}---------------------
import java.io.*;public class test extends Thread {
File file=null;
public test() {
try {
file=new File("c:/beyond_xiruo");
if(!file.exists())//如果不存在就创建该目录
file.mkdirs();
file=new File("c:/beyond_xiruo/note.txt");
if(!file.exists())
file.createNewFile();
}catch(Exception e){System.out.println(e.toString());}
this.start();
}
public void run() {
try{
String str="abcdefghijklmnopqrstuvwxyz";
int i=0;
java.io.BufferedReader br=null;
java.io.BufferedWriter bw=null;
String s="";
while(true) {
br=new java.io.BufferedReader(new FileReader(file));
String s1="";
while((s1=br.readLine())!=null) {
s+=s1;
}
s+="\t"+str.substring(i,i+1);
System.out.println(s);
bw=new java.io.BufferedWriter(new FileWriter(file));
bw.write(s);
i++;
if(i>=str.length())
break;
this.sleep(100);//定时为100毫秒往文件里写一个字符
}
br.close();
bw.close();
}catch(Exception e){System.out.println(e.toString());}
}
//Main method
public static void main(String[] args) {
new test();
}
}
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