JAVA线程间共享变量

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

public class ThreadScopeShareData {

	static Map<Thread, Integer> dataMap = 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(100);

					dataMap.put(Thread.currentThread(), new Integer(data));

					System.out.println("put the " + data + " into :"
							+ Thread.currentThread());

					new A().get();

					new B().get();

				}
			}).start();
		}

	}

	static class A {
		public void get() {
			int data = (int) dataMap.get(Thread.currentThread());
			System.out.println("A has got the data :" + data);
		}
	}

	static class B {
		public void get() {
			int data = (int) dataMap.get(Thread.currentThread());
			System.out.println("B has got the data :" + data);
		}
	}

}

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JAVA线程间共享变量