基于Java的电梯系统实现过程

package Ele;import java.util.ArrayList;import java.util.Collections;import java.util.Iterator;import java.util.List;import java.util.Random;public class Elevator {  private List<Integer> upFloorList = new ArrayList<Integer>();    // 上升楼层  private List<Integer> downFloorList = new ArrayList<Integer>();   // 下降楼层  private int[] storeyWeight; // 目标层重量  private int capacity;    // 电梯最大重量  private int topFloor;    // 电梯最高层  private int bottomFloor;  // 电梯最底层  private int nowFloor = 1;  // 当前层  public Elevator(int bottomFloor, int topFloor, int capacity) { //有参构造方法    this.topFloor = topFloor;    this.bottomFloor = bottomFloor;    this.capacity = capacity;    // 当前楼层减最低层，就是当前层重量的下标 假如当前楼层为5楼，5楼下标就是 5-1 = 4    // 初始化目标楼层重量，数组大小 = 最高层 - 最低层 + 1    storeyWeight = new int[(topFloor - bottomFloor + 1)];  }  // 设置楼层  public void SetFloor(int floorNum) {    //如果 所选楼层 与 所在楼层 相同，则提示    if (floorNum == nowFloor) {      System.out.println("请选择其它楼层");      return;    }    // 生成90-500之间的随机重量    Random random = new Random();    int thisFloorWeight = random.nextInt(500 - 90 + 1) + 90;    int sum = 0;    //目标楼层增加的重量    for (int i = 0; i < storeyWeight.length; i++) {      sum += storeyWeight[i];    }    //原重量+增加重量=当前重量    System.out.println(floorNum + "层上来重量：" + thisFloorWeight + ",此时总重：" + (sum + thisFloorWeight));    // 如果 目标楼层总重量 > 最大重量，提示    if (sum + thisFloorWeight > this.capacity) {      System.out.println("超重了哟");      return;    }    // 当前输入楼层重量加上该楼层新增加重量 后的重量    storeyWeight[floorNum - bottomFloor] += thisFloorWeight;    //如果输入楼层数 已经在上升或下降楼层的集合中，则只新增重量，不添加楼层    if (!upFloorList.contains(floorNum) && !downFloorList.contains(floorNum)) {      if (floorNum > nowFloor) {        upFloorList.add(floorNum);        // 上升楼层升序排序        Collections.sort(upFloorList);      } else {        downFloorList.add(floorNum);        // 下降楼层降序排序        downFloorList.sort(Collections.reverseOrder());      }    }  }  // 上升：从所在层到所选楼层中的最高层  // 下降：从所在层到所选楼层中的最低层  // 获得集合中最后一个元素：list.get(list.size()-1);  // 启动电梯  public void StartElevator() throws InterruptedException {    System.out.println("当前第 < " + nowFloor + " > 层");    // 上行    if (upFloorList.size() > 0) {      System.out.println("---电梯上行---");      for (int i = nowFloor + 1; i <= upFloorList.get(upFloorList.size() - 1); i++) {        Thread.sleep(500);        System.out.println("---第" + i + "层---");        if (upFloorList.contains(i)) {          System.out.println(" ☆开门☆");          nowFloor = i;          upFloorList.remove(upFloorList.indexOf(i));          storeyWeight[i - bottomFloor] = 0;          if (upFloorList.size() > 0) {            System.out.println("剩余所选层数为：");            Iterator it = upFloorList.iterator();            while (it.hasNext()) {              int floor = (int) it.next();              System.out.print(floor + "层 重量：" + storeyWeight[floor - bottomFloor] + " ");            }            System.out.println();          }          return;        }      }    }    // 下行    if (downFloorList.size() > 0) {      System.out.println("---电梯下行---");      for (int i = nowFloor - 1; i >= bottomFloor; i--) {        Thread.sleep(500);        System.out.println("---第" + i + "层---");        if (downFloorList.contains(i)) {          System.out.println(" ☆开门☆");          nowFloor = i;          downFloorList.remove(downFloorList.indexOf(i));          storeyWeight[i - bottomFloor] = 0;          if (downFloorList.size() > 0) {            System.out.println("剩余所选层数为：");            Iterator it = downFloorList.iterator();            while (it.hasNext()) {              int floor = (int) it.next();              System.out.print(floor + "层 重量：" + storeyWeight[floor - bottomFloor] + " ");            }            System.out.println();          }          return;        }      }    }    System.out.println("无客");  }}

package com.company;import Ele.Elevator;import java.util.Scanner;public class Main {  public static void main(String[] args) throws InterruptedException {    // 创建一个电梯    int bottomFloor = 1;  // 最低层1楼    int topFloor = 12;   // 最高层12楼    int capacity = 1000;  // 最大承重1000    Elevator elvator = new Elevator(bottomFloor, topFloor, capacity);    System.out.println("当前电梯可选择" + bottomFloor + "-" + topFloor + "层，请选择楼层数（输入-1表示关闭电梯门）：");    //输入内容    Scanner scanner = new Scanner(System.in);    while (scanner.hasNextLine()) {      //如果输入不是数字，提示后，再次输入      if (!scanner.hasNextInt()) {        System.out.println("请输入数字！");        scanner.next();      }      //输入是数字则进行以下操作      else {        int num = scanner.nextInt();        //若输入数字为-1，意为结束输入，启动电梯        if (num == -1) {          System.out.println("------------------------");          System.out.println("电梯门关闭，开始启动");          elvator.StartElevator();        } else if (num > topFloor || num < bottomFloor || num == 0) {          //若输入数字不符合楼层数，则提示并再次输入          System.out.println("请选择1-12楼层。");        } else {          elvator.SetFloor(num);        }      }    }  }}

 if (!scanner.hasNextInt()) {        System.out.println("请输入数字！");        scanner.next();      }

if (!upFloorList.contains(floorNum) && !downFloorList.contains(floorNum)) {      if (floorNum > nowFloor) {        upFloorList.add(floorNum);        // 上升楼层升序排序        Collections.sort(upFloorList);      } else {        downFloorList.add(floorNum);        // 下降楼层降序排序        downFloorList.sort(Collections.reverseOrder());      }    }  }