java中wait是什么意思

public final void wait()

    /**

     * 当前线程必须是该对象锁的拥有者

     *

     * @param timeout 要等待的最长时间 如果timeout为0，则必须被notify唤醒

     * @throws  IllegalArgumentException 如果超时值是负数，或者不在0-999999范围内

     * @throws  IllegalMonitorStateException 如果当前线程不是此对象锁的所有者

     * @throws  InterruptedException 如果当前线程等待通知之前或者正在等待通知时，任何线程中断了当前线程，抛出该异常并解除线程的中断状态

     */

 public final native void wait(long timeout) throws InterruptedException;

/**

     * @param timeout 毫秒

     * @param nanos 微毫秒

     */

 public final void wait(long timeout, int nanos) throws InterruptedException {

    if (timeout < 0) {

    throw new IllegalArgumentException("timeout value is negative");

        }

        if (nanos < 0 || nanos > 999999) {

            throw new IllegalArgumentException(

                                "nanosecond timeout value out of range");

        }

        if (nanos > 0) {

            timeout++;

        }

        wait(timeout);

    }

    public final void wait() throws InterruptedException {

        wait(0);

}