package net.xinxin.test;


public class testThreadLocal {
    protected BankAccount account;
    public testThreadLocal(BankAccount account)
    {
        this.account = account;
    }
    private static ThreadLocal<Integer> seqNum = new ThreadLocal<Integer>(){
        public Integer initialValue(){
            return 0;
        }
    };
    private ThreadLocal<Integer> accountNum = new ThreadLocal<Integer>(){
        public Integer initialValue(){
            return account.getBalance();
        }
    };
    
    public int getNextNum(){
        seqNum.set(seqNum.get()+1);
        return seqNum.get();
    }
    private int getAccountNum()
    {
        accountNum.set(accountNum.get()+10);
        return accountNum.get();
    }
    
    private static class TestClient extends Thread{
        private testThreadLocal ttl;
        public TestClient(testThreadLocal ttl)
        {
            this.ttl=ttl;
        }
        public void run(){
            for(int i=0;i<3;i++){
                                ttl.getAccountNum();
                System.out.println("thread["+Thread.currentThread().getName()+"] sn["+ttl.getNextNum()+"]");//注释编号1：若在这里打印accountNum.get()，值是期望的
            }
        }
    }
    public static void main(String[] args)throws Exception{
        BankAccount a = new BankAccount(1,100);
        testThreadLocal ttl = new testThreadLocal(a);
        TestClient t1 = new TestClient(ttl);
        TestClient t2 = new TestClient(ttl);
        TestClient t3 = new TestClient(ttl);
        t1.start();
        t2.start();
        t3.start();
        t1.join();
        t2.join();
        t3.join();
        System.out.println(ttl.accountNum.get());//注释编号2：这里打印仅有第一次结果 
    }
}