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WaxOMatic2.java
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139 lines (100 loc) · 2.26 KB
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package com.csdhsm.concurrent;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
class Car1{
private Lock lock = new ReentrantLock();
private Condition condition = lock.newCondition();
private boolean waxOn = false;
public void waxed(){
lock.lock();
try {
waxOn = true;
condition.signalAll();
} finally {
lock.unlock();
}
}
public void buffed(){
lock.lock();
try {
waxOn = false;
condition.signalAll();
} finally{
lock.unlock();
}
}
public void waitForWaxing() throws InterruptedException{
lock.lock();
try {
while(waxOn == false){
condition.await();
}
} finally {
lock.lock();
}
}
public void waitForBuffing() throws InterruptedException{
lock.lock();
try {
while(waxOn == true){
condition.await();
}
} finally {
lock.lock();
}
}
}
class WaxOn1 implements Runnable{
private Car1 car;
public WaxOn1(Car1 c){
this.car = c;
}
@Override
public void run() {
try {
while(!Thread.interrupted()){
System.out.println("Wax On! ");
TimeUnit.MILLISECONDS.sleep(200);
car.waxed();
car.waitForBuffing();
}
} catch (InterruptedException e) {
System.out.println("Exiting via interrupt");
}
System.out.println("Ending Wax On task");
}
}
class WaxOff1 implements Runnable{
private Car1 car;
public WaxOff1(Car1 c) {
this.car = c;
}
@Override
public void run() {
try {
while(!Thread.interrupted()){
car.waitForWaxing();
System.out.println("Wax Off！ ");
TimeUnit.MILLISECONDS.sleep(200);
car.buffed();
}
} catch (InterruptedException e) {
System.out.println("Exiting via interrupt");
}
System.out.println("Ending Wax Off task");
}
}
public class WaxOMatic2 {
public static void main(String[] args) throws InterruptedException {
Car1 car1 = new Car1();
ExecutorService service = Executors.newCachedThreadPool();
service.execute(new WaxOn1(car1));
service.execute(new WaxOff1(car1));
TimeUnit.SECONDS.sleep(5);
service.shutdownNow();
}
}