java实现生产者消费者问题 在下面的注释处补充代码 急用

发布网友 发布时间：2022-04-30 03:35

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共3个回答

热心网友 时间：2023-10-09 20:32

我这里有个消费者问题能跑的，你可以参考下（其中两处Math.random() * 200多修改几次这里的值看效果跟好）：
public class ProcerConsumer {
public static void main(String[] args) {
SyncStack ss = new SyncStack();
Procer p = new Procer(ss);
Consumer c = new Consumer(ss);
new Thread(p).start();
new Thread(c).start();
}
}

class WoTou {
int id;

WoTou(int id) {
this.id = id;
}
}

class SyncStack {
int index = 0;

WoTou[] arrWT = new WoTou[6];

public synchronized void push(WoTou wt) {
while(index == arrWT.length) {
try {
System.out.println("生产者说篓子满了,我去休息");
this.wait();

} catch (InterruptedException e) {
e.printStackTrace();
}
}
this.notify();
arrWT[index] = wt;
index++;

System.out.println("生产前后" + index +"个");
}

public synchronized WoTou pop() {
while(index ==0) {
try {
System.out.println("消费者说篓子空了,我去休息");
this.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
this.notify();
index--;

System.out.println("消费后剩余" + index +"个");
return arrWT[index];

}
}

class Procer implements Runnable {
SyncStack ss = null;
Procer(SyncStack ss) {
this.ss = ss;
}

public void run() {
for(int i=0; i<20; i++){
WoTou wt = new WoTou(i);
ss.push(wt);

try {
Thread.sleep((int)(Math.random() * 200));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}

class Consumer implements Runnable {
SyncStack ss = null;
Consumer(SyncStack ss) {
this.ss = ss;
}

public void run() {
for(int i=0; i<20; i++) {
WoTou wt = ss.pop();

try {
Thread.sleep((int)(Math.random() * 1000));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}

热心网友 时间：2023-10-09 20:33

@SuppressWarnings("unchecked")
public void put(Object proct) {
synchronized(internalBuffer) {
if(internalBuffer.size() >= bufCount) {
wait();
}
notify();
System.out.println("Procer put: " + proct + " " + this);
}
}

public Object get() {
synchronized(internalBuffer) {
Object proct = null;
if(internalBuffer.isEmpty()) {
wait();
}
notify();
System.out.println("Consumer got: " + proct + " " + this);
return proct;
}
}
应该就是这样了，不知道是不是满足你的要求

热心网友 时间：2023-10-09 20:33

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