用Java代码模拟实现：一个人不断往箱子里放苹果，另一个人不断从箱子里取苹果，箱子只能放5个苹果，苹果数量无限。要求不使用java.util.concurrent包中的类。
static List
int size = 5;
static int apple = 0;
public static void main(String[] args) throws InterruptedException {
InputApple inputApple = new InputApple();
OutputApple outputApple = new OutputApple();
new Thread(inputApple).start();
new Thread(outputApple).start();
}
/**
* 放入
* */
private static class InputApple implements Runnable{
@Override
public void run() {
while (true) {
try {
Thread.sleep(new Random().nextInt(3)*900);
} catch (InterruptedException e) {
e.printStackTrace();
}
if(list.size() < 5){
apple ++;
list.add(""+apple);
System.out.println("放入");
}else{
System.out.println("已经放满");
}
}
}
}
/**
* 拿出
* */
private static class OutputApple implements Runnable{
@Override
public void run() {
while (true) {
try {
Thread.sleep(new Random().nextInt(3)*800);
} catch (InterruptedException e) {
e.printStackTrace();
}
if(list.size() > 0){
list.remove(new Random().nextInt(list.size()));
System.out.println("拿走");
}else{
System.out.println("已经空了");
}
}
}
}
