package test;
class Thing {
int id;
public Thing(int id) {
this.id = id;
}
}
class Stack {
int counter = 0;
int stackSize;
Thing[] things = null;
public Stack(int stackSize) {
this.stackSize = stackSize;
things = new Thing[stackSize];
}
public synchronized void push(Thing thing) {
// 生產
while (counter == stackSize) {
// 已經滿了 等待消費
System.out.println("已經存滿！等待消費。。。。。");
try {
this.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
this.notify();
things[counter] = thing;
counter++;
}
public synchronized Thing pop() {
// 消費
while (counter == 0) {
System.out.println("沒有產品！等待生產。。。。");
try {
this.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
this.notify();
counter--;
return things[counter];
}
}
class Producer implements Runnable {
Stack stack;
int level;// 生產水平
public Producer(Stack stack, int level) {
this.stack = stack;
this.level = level;
}
public void run() {
for (int i = 0; i <= level; i++) {
Thing thing = new Thing(i);
stack.push(thing);
System.out.println("生產: " + thing.id);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
class Consumer implements Runnable {
Stack stack;
int level;// 消費水平
public Consumer(Stack stack, int level) {
this.stack = stack;
this.level = level;
}
public void run() {
for (int i = 0; i <= level; i++) {
Thing thing = stack.pop();
System.out.println("消費: " + thing.id);
try {
Thread.sleep(800);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public class ProducterConsumer {
public static void main(String[] args) {
int stackSize = 5;
Stack stack = new Stack(stackSize);
// 存儲量為5的容器
Producer p = new Producer(stack, 10);
Consumer c = new Consumer(stack, 10);
new Thread(p).start();
new Thread(c).start();
}
}