package net.xinxin.test;

public class BankAccount {
    private int number;
    
    private int balance;
    
    public BankAccount(int number,int balance)
    {
        this.number=number;
        this.balance=balance;
    }
    public int getBalance()
    {
        return balance;
    }
    
    public void deposit(int amount)
    {
        balance = balance + amount;
    }
    
    public void withdraw(int amount)
    {
        balance = balance-amount;
    }
    
    public static void main(String[] args)throws Exception
    {
        BankAccount a = new BankAccount(1, 1000);
        Thread t1 = new Thread(new Depositor(a, 100),"depositor");
    
        t1.start();
        //t1.join();
        System.out.println(a.getBalance());
    }
    
    static class Depositor implements Runnable
    {
        BankAccount account;
        int amount;
        public Depositor(BankAccount account,int amount)
        {
            this.account=account;
            this.amount=amount;
        }
        public void run(){
            
            for(int i=0;i<10000;i++)
            {
                account.deposit(amount);
                //System.out.println(account.getBalance()); //不加此句运行结果1000 加上之后结果正常
            }
        }
    }
    
    static class Withdrawer implements Runnable
    {
        BankAccount account;
        int amount;
        public Withdrawer(BankAccount account,int amount) {
            this.account=account;
            this.amount=amount;
        }
        public void run()
        {
            for(int i=0;i<10000;i++)
                account.withdraw(amount);
        }
    }
    
}