public class  ThreadLocalMain {

  private static ThreadLocal<Integer> value = new ThreadLocal<Integer>() {

     @Override

     protected Integer initialValue(){

        return 0;

     }

  };

 class TestThread implements Runnable {

   private int index;

   public TestThread(int index) {

      this.index = index;

   }

  public void run() {

    System.out.println("线程“+index +"的初始Value:" + value.get());

    for(int i=0;i<10;i++) {

        value.set(value.get()+i);

     }

    System.out.println("线程“+index +"的累加Value:" + value.get());

  }

  public static void main(String [] args) {

    ThreadLocalMain main = new ThreadLocalMain();

    for(int i=0;i<5;i++) {

      TestThread testThread = main.new TestThread(i);

      new Thread(testThread).start();

    }

  }

 }  
}