Java多线程之内置锁与显示锁

int value) { writeLock.lock(); try { list.add(value); } finally { writeLock.unlock(); } }}class SyncList { private List list; public SyncList(List list){this.list = list;} public synchronized int get(int k){ return (int)list.get(k); } public synchronized void put(int value){ list.add(value); }}

private Lock lock = new ReentrantLock();  private Condition condition = lock.newCondition(); condition.await();//this.wait();  condition.signal();//this.notify();  condition.signalAll();//this.notifyAll();

读写锁测试代码：

List list = new LinkedList();for (int i=0;i<10000;i++){    list.add(i);}RWLockList rwLockList = new RWLockList(list);//初始化数据Thread writer = new Thread(new Runnable() {    @Override     public void run() {        for (int i=0;i<10000;i++){            rwLockList.put(i);        }    }});Thread reader1 = new Thread(new Runnable() {    @Override     public void run() {        for (int i=0;i<10000;i++){            rwLockList.get(i);        }    }});Thread reader2 = new Thread(new Runnable() {    @Override     public void run() {        for (int i=0;i<10000;i++){            rwLockList.get(i);        }    }});long begin = System.currentTimeMillis();writer.start();reader1.start();reader2.start();try {    writer.join();    reader1.join();    reader2.join();} catch (InterruptedException e) {    e.printStackTrace();}System.out.println("RWLockList take "+(System.currentTimeMillis()-begin) + "ms");

同步锁测试代码：

List list = new LinkedList();for (

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