Thread pool emulation in Java

The usual, directly on the code, write bad Don't spray!

public class Threadexecutrols {

public static void Main (string[] args) {
Create a thread pool with a fixed number of 3
Executorservice ex = Executors.newfixedthreadpool (3);
Create a single thread
Executorservice ex = Executors.newsinglethreadexecutor ();
Use the cache to create a default thread that will be applied the next time it is applied, and the number of these threads is not fixed
Executorservice ex = Executors.newcachedthreadpool ();
for (int i = 0; i < i++) {
final int task =i;
Ex.execute (New Runnable () {
@Override
public void Run () {
for (int j = 0; J <; J + +) {
System.out.println (Thread.CurrentThread (). GetName () + "execution:" +task+ "second" +j+ "secondary cycle");
}
}
});
}
Ex.shutdown ();
}
}

Code print a bit long, want to try to copy run a

Thread pool emulation in Java