张孝祥实现线程范围内数据共享（学习笔记）

package cn.javaious.concurrence;

import java.util.HashMap;
import java.util.Map;
import java.util.Random;

public class ThreadScopeShareData {

private static Map<Thread, Integer> threadData = new HashMap<Thread, Integer>();
public static void main(String[] args) {
for (int i = 0; i < 4; i++) {

new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
int data = new Random().nextInt();
System.out.println(Thread.currentThread().getName()
+ " has put data :" + data);
threadData.put(Thread.currentThread(), data);
new A().get();
new B().get();
}
}).start();
}
}

static class A {
public  void get() {
int data = threadData.get(Thread.currentThread());
System.out.println("A from " + Thread.currentThread().getName()
+" has put data :"+data);
}
}
static class B {
public void get() {
int data = threadData.get(Thread.currentThread());
System.out.println("B from " + Thread.currentThread().getName()
+" has put data :"+data);
}
}
}