JAVA實現阻塞隊列

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package 多線程並發;import java.util.Stack;/** * Created by z84102272 on 2018/7/17. */public class BlockQueueImpl {    private final static Object pushLock = new Object();  //push的鎖    private final static Object popLock = new Object();  //pop的鎖    private Stack<Object> stack;    //儲存資料    public BlockQueueImpl(){        stack = new Stack<>();    }    /**     * push鎖     */    private void pushLock(){        synchronized (pushLock){            try{                pushLock.wait();            }catch (Exception e){                e.printStackTrace();            }        }    }    /**     * 釋放push鎖     */    private void pushUnlock(){        pushLock.notify();    }    private void popLock(){        try {            popLock.wait();        }catch (Exception e){            e.printStackTrace();        }    }    private void popUnlock(){        popLock.notify();    }    public synchronized void push(Object o){        int MAX_SIZE = 3;        if (stack.size() >= MAX_SIZE){            pushLock();        }        stack.push(o);        popUnlock();    }        public Object pop(){        if (stack.size()==0){            popLock();        }        Object o  = stack.pop();        pushUnlock();        return o;    }    }

　　

JAVA實現阻塞隊列