第四周作業-多線程編程

class BankAccount                 //定義銀行賬戶類BankAccount           
{
	private static int amount=2000;           //賬戶餘額最初爲2000
	public void despoit(int m)                 //定義存款的方法
	{
		amount = amount +m;
		System.out.println("小明存入["+m+"元]");
	}
	public void withdraw(int m)              //定義取款的方法
	{
		amount =amount-m;
		System.out.println("張新取走["+m+"元]");
		if(amount<0)
		System.out.println("***餘額不足！***");
		}
	public int balance()                       //定義得到賬戶餘額的方法
	{
		return amount;
	}
}
class Customer extends Thread
{
	String name;
	BankAccount bs;                  //定義一個具體的用戶對象
	public Customer(BankAccount b,String s)
	{
		name= s;
		bs=b;
	}
	@SuppressWarnings("static-access")
	public synchronized static void cus(String name,BankAccount bs)
	{
		if(name.equals("小明"))          //判斷用戶是不是小明
		{
			try
			{
				for(int i=0;i<6;i++)
				{
					Thread.currentThread().sleep((int)(Math.random()*300));
					bs.despoit(1000);
				}
			}
			catch(InterruptedException e)
			{}
		}
		else
		{
			try
			{
				for(int i=0;i<6;i++)
				{
					Thread.currentThread().sleep((int)(Math.random()*300));
					bs.withdraw(1000);
				}
			}
			catch(InterruptedException e)
			{}
		}
	}
	public void run()   //定義run方法
	{
		cus(name,bs);
	}
}
public class AccountTest1
{
	@SuppressWarnings("static-access")
public static void main(String args[])throws InterruptedException
{
  BankAccount bs =new BankAccount();
  Customer customer1=new Customer(bs,"小明");
  Customer customer2=new Customer(bs,"張新");
  Thread t1=new Thread(customer1);
  Thread t2=new Thread(customer2);
  t1.start();
  t2.start();
  Thread.currentThread().sleep(500);
  }
}