线程池Executors.newFixedThreadPool验证以及总结
ThreadPool
A simple C++11 Thread Pool implementation
项目地址:https://gitcode.com/gh_mirrors/th/ThreadPool

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1、Executors在于java.util.comcurrent.包下,Executors.newFixedThreadPool(n)创建容器大小为n的线程池,表示正在执行中的线程只有n个,
实践代码如下:
public class TestExecute {
public static void main(String[] args) {
Executor exe = Executors.newFixedThreadPool(2);
for (int i = 0; i < 3; i++) {
ExeThreads ex = new ExeThreads();
exe.execute(ex);
}
}
}
class ExeThreads implements Runnable {
@Override
public void run() {
try {
System.out.println("run start-----------------" + System.currentTimeMillis());
Thread.sleep(15 * 1000);
System.out.println("run end-----------------" + System.currentTimeMillis());
}
catch (InterruptedException e) {
e.printStackTrace();
}
}
}
实验结果如下:
ThreadPool
A simple C++11 Thread Pool implementation
项目地址:https://gitcode.com/gh_mirrors/th/ThreadPool
事例总结:线程池大小为2,但是要执行的线程是3个。所以正在执行的线程只有2个,正在执行的2个线程的开始时间为1536907573338,2个线程的结束时间为1536907588338,第3个线程的开始时间,刚刚好是前面2个线程执行结束时间。




A simple C++11 Thread Pool implementation
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9a42ec13 - 10 年前
fcc91415 - 10 年前
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