ThreadLocal

class Bank {
ThreadLocal<Integer> t = new ThreadLocal<Integer>() {
@Override
protected Integer initialValue() {
return 100;

}
};

public void set() {
t.set(t.get() + 10);
}

public int get() {
return t.get();
}
}

class Transer implements Runnable {
Bank bank;

public Transer(Bank bank) {
this.bank = bank;
}

@Override
public void run() {
for (int i = 0; i < 10; i++) {
bank.set();
System.out.println(Thread.currentThread() + "" + bank.get());
}
}

}

public class FF {

public static void main(String[] args) throws Exception {
Bank b = new Bank();
Transer t = new Transer(b);
Thread t1 = new Thread(t);
t1.start();
Thread t2 = new Thread(t);
t2.start();
// thread.Join把指定的线程加入到当前线程，可以将两个交替执行的线程合并为顺序执行的线程。
t1.join();
t2.join();
System.out.println(b.get());
}

}