Example12_8.java
public class Example12_8 {
public static void main(String args[ ]) {
TicketHouse officer = new TicketHouse();
Thread zhangfei,likui;
zhangfei = new Thread(officer);
zhangfei.setName("张飞");
likui = new Thread(officer);
likui.setName("李逵");
zhangfei.start();
likui.start();
}
}
TicketHouse.java
public class TicketHouse implements Runnable {
int fiveAmount=2,tenAmount=0,twentyAmount=0;
public void run() {
if(Thread.currentThread().getName().equals("张飞")) {
saleTicket(20);
}
else if(Thread.currentThread().getName().equals("李逵")) {
saleTicket(5);
}
}
private synchronized void saleTicket(int money) {
if(money==5) { //如果使用该方法的线程传递的参数是5,就不用等待
fiveAmount=fiveAmount+1;
System.out.println( "给"+Thread.currentThread().getName()+"入场卷,"+
Thread.currentThread().getName()+"的钱正好");
}
else if(money==20) {
while(fiveAmount<3) {
try { System.out.println("\n"+Thread.currentThread().getName()+"靠边等...");
wait(); //如果使用该方法的线程传递的参数是20须等待
System.out.println("\n"+Thread.currentThread().getName()+"继续买票");
}
catch(InterruptedException e){}
}
fiveAmount=fiveAmount-3;
twentyAmount=twentyAmount+1;
System.out.println("给"+Thread.currentThread().getName()+"入场卷,"+
Thread.currentThread().getName()+"给20，找赎15元");
}
notifyAll();
}
}
Bank.java
public class Bank implements Runnable {
int money=200;
public void setMoney(int n) {
money=n;
}
public void run() {
if(Thread.currentThread().getName().equals("会计"))
saveOrTake(300);
else if(Thread.currentThread().getName().equals("出纳"))
saveOrTake(150);;
}
public synchronized void saveOrTake(int amount) { //存取方法
if(Thread.currentThread().getName().equals("会计")) {
for(int i=1;i<=3;i++) {
money=money+amount/3; //每存入amount/3，稍歇一下
System.out.println(Thread.currentThread().getName()+
"存入"+amount/3+",帐上有"+money+"万,休息一会再存");
try { Thread.sleep(1000); //这时出纳仍不能使用saveOrTake方法
}
catch(InterruptedException e){}
}
}
else if(Thread.currentThread().getName().equals("出纳")) {
for(int i=1;i<=3;i++) { //出纳使用存取方法取出60
money=money-amount/3; //每取出amount/3，稍歇一下
System.out.println(Thread.currentThread().getName()+
"取出"+amount/3+"帐上有"+money+"万,休息一会再取");
try { Thread.sleep(1000); //这时会计仍不能使用saveOrTake方法
}
catch(InterruptedException e){}
}
}
}
}