<b>从线程承当(java)</b>[Java编程]

//: SimpleThread.java
// Very simple Threading example

public class SimpleThread extends Thread {
  private int countDown = 5;
  private int threadNumber;
  private static int threadCount = 0;
  public SimpleThread() {
    threadNumber = ++threadCount;
    System.out.println("Making " + threadNumber);
  }
  public void run() {
    while(true) {
      System.out.println("Thread " + 
        threadNumber + "(" + countDown + ")");
      if(--countDown == 0) return;
    }
  }
  public static void main(String[] args) {
    for(int i = 0; i < 5; i++)
      new SimpleThread().start();
    System.out.println("All Threads Started");
  }
} ///:~

Making 1
Making 2
Making 3
Making 4
Making 5
Thread 1(5)
Thread 1(4)
Thread 1(3)
Thread 1(2)
Thread 2(5)
Thread 2(4)
Thread 2(3)
Thread 2(2)
Thread 2(1)
Thread 1(1)
All Threads Started
Thread 3(5)
Thread 4(5)
Thread 4(4)
Thread 4(3)
Thread 4(2)
Thread 4(1)
Thread 5(5)
Thread 5(4)
Thread 5(3)
Thread 5(2)
Thread 5(1)
Thread 3(4)
Thread 3(3)
Thread 3(2)
Thread 3(1)