Topic 1: write an application using Java multi-threading mechanism to achieve synchronization output time display.
/ * Use the Runnable interface class to create a thread object, override the run () method ** /
Code
public class timetext {
public static void main(String[] args) {
Thread thread =new Thread(new time());
thread.start();
}
}
import java.util.Date;
public class time implements Runnable {
public void run() {
Date date =null;
while(true){
date=new Date();
System.out.println(date);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
operation result
Write an application using Java multi-threading mechanism to achieve guessing game (an integer between 0 to 100 range of random numbers).
Code
public class Test {
public static void main(String[] args) {
game ga=new game();
ga.rand.start();
ga.input.start();
}
}
import java.util.*;
public class game implements Runnable {
Thread rand,input;
int inputnum,random,flag;
boolean a=false,b=false;
public game(){
rand=new Thread(this);
input=new Thread(this);
}
public void run() {
while(true){
compare();
if(flag==3)
return;
}
}
public synchronized void compare(){
if(Thread.currentThread()==rand&&b==false){
random=(int)(Math.random()*100)+1;
System.out.println("猜数游戏开始！");
a=true;
b=true;
}
IF (Thread.currentThread () == RAND) {
IF (A == to true) {
the try {
the wait ();
} the catch (InterruptedException E) {
e.printStackTrace ();
}
}
IF (InputNum <Random) {
the System .out.println ( "! Please try to guess the small guess!");
In Flag =. 1;
}
the else IF (InputNum> Random) {
System.out.println ( "! Please try to guess guess big!");
In Flag = 2;
}
the else IF (Random InputNum ==) {
System.out.println ( "Congratulations, you guessed it!");
In Flag =. 3;
}
a = to true;
notifyAll ();
}
if(Thread.currentThread()==input){
while(a==false){
try {
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
if(flag<3){
System.out.println("请输入您猜的数!");
Scanner r=new Scanner(System.in);
inputnum=r.nextInt();
}
a=false;
}
notifyAll();
}
}
operation result
