JDK 5.0 Concurrency Utilities 并发处理（4）Semaphore 信号量

Semaphore 信号量

  1package com.vinko.test.concurrent;
  2
  3import java.util.Calendar;
  4import java.util.concurrent.Semaphore;
  5import java.util.concurrent.locks.Condition;
  6import java.util.concurrent.locks.Lock;
  7import java.util.concurrent.locks.ReentrantLock;
  8
  9}