解决方式一:管程法
public class TestPC {
public static void main(String[] args) {
SynContainer container = new SynContainer();
new Productor(container).start();
new Consumer(container).start();
}
}
class Productor extends Thread {
SynContainer container;
public Productor(SynContainer container) {
this.container = container;
}
@Override
public void run() {
for (int i = 0; i < 100; i++) {
container.push(new Chicken(i));
System.out.println("生产了" + i + "只鸡");
}
}
}
class Consumer extends Thread {
SynContainer container;
public Consumer(SynContainer container) {
this.container = container;
}
@Override
public void run() {
for (int i = 0; i < 100; i++) {
System.out.println("消费了-->" + container.pop().id + "只鸡");
}
}
}
class Chicken {
int id;
public Chicken(int id) {
this.id = id;
}
}
class SynContainer {
Chicken[] chickens = new Chicken[10];
int count = 0;
public synchronized void push(Chicken chicken) {
if (count == chickens.length) {
try {
this.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
chickens[count] = chicken;
count++;
this.notifyAll();
}
public synchronized Chicken pop() {
if (count == 0) {
try {
this.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
count--;
Chicken chicken = chickens[count];
this.notifyAll();
return chicken;
}
}
解决方式二:信号灯法
public class TestPc2 {
public static void main(String[] args) {
TV tv = new TV();
new Player(tv).start();
new Watcher(tv).start();
}
}
class Player extends Thread {
TV tv;
public Player(TV tv) {
this.tv = tv;
}
@Override
public void run() {
for (int i = 0; i < 20; i++) {
if (i % 2 == 0) {
this.tv.play("快乐大本营播放中");
} else {
this.tv.play("抖音:记录美好生活");
}
}
}
}
class Watcher extends Thread {
TV tv;
public Watcher(TV tv) {
this.tv = tv;
}
@Override
public void run() {
for (int i = 0; i < 20; i++) {
tv.watch();
}
}
}
class TV {
String voice;
boolean flag = true;
public synchronized void play(String voice) {
if (!flag) {
try {
this.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println("演员表演了: " + voice);
this.notifyAll();
this.voice = voice;
this.flag = !this.flag;
}
public synchronized void watch() {
if (flag) {
try {
this.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println("观看了: " + voice);
this.notifyAll();
this.flag = !this.flag;
}
}
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