线程范围内的共享和作用

import java.util.HashMap;

import java.util.Random;

//线程范围内的共享和作用

public class ThreadScopShareData {

private static Integer data = 0;

private static HashMap<Thread, Integer> map = new HashMap<Thread, Integer>();

public static void main(String[] args) {

for(int i=0; i<2; i++){

new Thread(new Runnable(){

@Override

public void run() {

int data = new Random().nextInt();

System.out.println(Thread.currentThread().getName() + "has put data: " + data);

map.put(Thread.currentThread(), data);

new A().get();

new B().get();

}

}).start();

}

}

static class A{

public void get(){

int data = map.get(Thread.currentThread());

System.out.println("A get "+Thread.currentThread().getName() + " data: " + data);

}

}

static class B{

public void get(){

int data = map.get(Thread.currentThread());

System.out.println("B get "+Thread.currentThread().getName() + " data: " + data);

}

}

}