2017-2018-1 20162307 队列课下作业
2017-2018-1 20162307 队列课下作业
题目要求
1 补充课上没有完成的作业
2 参考15.3节,用自己完成的队列(链队,循环数组队列)实现模拟票务柜台排队功能
3 用JDB或IDEA单步跟踪排队情况,画出队列变化图,包含自己的学号信息
4 把代码推送到代码托管平台
5 把完成过程写一篇博客:重点是单步跟踪过程和遇到的问题及解决过程
6 提交博客链接
解决题目要求的步骤
-
1.参考15.3节,用自己完成的队列(链队,循环数组队列)实现模拟票务柜台排队功能
public class LinkedQueue
implements Queue {
private int count;
private LinearNodefront, rear;
private LinkedList list;public LinkedQueue() {
count = 0;
front = rear = null;
}public void enqueue(T element) {
LinearNodenode = new LinearNode ( element );
if (isEmpty ())
front = node;
else
rear.setNext ( node );
rear = node;
count++;
}public T first() throws EmptyCollectionException {
if (count == 0)
throw new EmptyCollectionException ( "queue" );
return front.getElement ();
}public void add(Object obj) {
this.list.add ( obj );
}public Object get() {
return this.list.getFirst ();
}public void next() {
this.list.removeFirst ();
}public boolean isEmpty() {
if (count == 0) {
return true;
} else return false;
}public int size() {
return count;
}public String toString() {
String result = "";
LinearNodecurrent = front;
while (current != null) {
result = result + (current.getElement ()).toString () + "\n";
current = current.getNext ();
}
return result;
}
} -
2.参考15.4,运行程序


- 3.用JDB或IDEA单步跟踪排队情况,画出队列变化图,包含自己的学号信息

售票员增加的队列变化图是按照☝️思路推的
随着售票人数的增加,当增加到8个人时,顾客不需要等待,120s时走来买票的时间

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