运筹学课程设计(银行排队叫号模型)

import java.util.concurrent.TimeUnit; public class ServantThread extends Thread{ //服务顾客数目 private static int customerNum = 0; //总等待时间 private static int sumWaitTime = 0; //总服务时间 private static int sumServeTime = 0; //最大等待时间 private static int maxWaitTime = 0; private boolean flag = false; //服务台名 private String name; public ServantThread(String name) { super(name); this.name = name; } public static int getMaxWaitTime() { return maxWaitTime; } public static int getSumServeTime() { return sumServeTime; } @Override public void run() { flag = true; while (flag) { CustomerBean customer = CustomerQuene.getCustomerQuene().getCustomerBean(); //如果顾客线程已经关闭且队列中没有顾客，服务台线程关闭释放 if (customer == null) { if (!CustomerQuene.getCustomerQuene().isFlag()) { flag = false; print(); } continue; } long now = System.currentTimeMillis(); //保存最大的等待时间 int waitTime = (int) (now - customer.getArriveTime()); if (waitTime > maxWaitTime) { maxWaitTime = waitTime; } //睡眠时间为顾客的服务时间，代表这段时间在服务顾客 try { TimeUnit.MILLISECONDS.sleep(customer.getServeTime()); } catch (Exception e) { e.printStackTrace(); } System.err.println(name + " 服务顾客耗时：" + customer.getServeTime() + "ms\t顾客等待：" + waitTime + "ms"); customerNum++; sumWaitTime += waitTime; sumServeTime += customer.getServeTime(); } } public static void print() { if (customerNum > 0) { System.out.println("--------------------------------------"); System.out.println("服务顾客数目：" + customerNum); System.out.println("最大等待时间：" + maxWaitTime+"ms"); System.out.println("最大等待顾客数目：" + CustomerQuene.getCustomerQuene().getMaxWaitNum()); //输出顾客平均等待时间，保留两位小数 System.out.println("顾客平均等待时间：" + ((sumWaitTime * 1.0 / customerNum)) + "ms"); System.out.println("顾客平均服务时间：" + ((sumServeTime * 1.0 / customerNum)) + "ms"); System.out.println("系统总服务时间：" + sumServeTime + "ms"); } } }