精选优质文档-倾情为你奉上import java.io.*;import java.util.*;class Room String ID; String tpye; int RN; Room() this.RN = 6; void show() System.out.println(房间的编号:+this.ID); System.out.println(房间的类型:+this.tpye); System.out.println(房间的还能够容纳的学生数量:+this.RN); class Student String name;String ID;String gender;String RoomID;void show()/显示学生信息的方法 System.out.println(学生的学号： + this.ID); System.out.println(学生的姓名： + this.name); System.out.println(学生的性别： + this.gender); System.out.println(学生的房间号： + this.RoomID);static void showallstudent(ArrayList allarraylist)/创建一个显示所有学生的信息的方法for(int i = 0; iallarraylist.size();i+) System.out.println(); System.out.println(第 + (i + 1) + 名学生：); Student allstudent = (Student)allarraylist.get(i); System.out.println(学生的学号： + allstudent.ID); System.out.println(学生的姓名： + allstudent.name); System.out.println(学生的性别： + allstudent.gender); System.out.println(学生的房间号： + allstudent.RoomID); System.out.println();public class Sushe public static void main(String args)int i = 888;/定义全局变量，并且赋值ArrayList addarray = new ArrayList();/创建一个动态的存储数组addarrayRoom room = new Room5;/创建5个房间for(int j=0;jroom.length;j+)/初始化每个房间数roomj = new Room();roomj.ID = (R+(j+1);if(j2)roomj.tpye = female;else roomj.tpye = male;function();do/第一个死循环控制总的功能int k;Scanner sc = new Scanner(System.in);i = sc.nextInt(); switch (i) case 1: Student localStudent1 = new Student(); System.out.print(请输入学号：); Scanner localScanner1 = new Scanner(System.in); localStudent1.ID = localScanner1.next().toString(); System.out.print(请输入姓名：); localScanner1 = new Scanner(System.in); localStudent1.name = localScanner1.next().toString(); System.out.print(请输入性别：); localScanner1 = new Scanner(System.in); localStudent1.gender = localScanner1.next().toString(); for (k = 0; k 0) & (roomk.tpye.equals(localStudent1.gender) roomk.RN -= 1; localStudent1.RoomID = roomk.ID; System.out.println(新添加的学生被分配到房间： + roomk.ID); break; addarray.add(localStudent1); function(); break; case 2: System.out.println(所有房间信息如下：); for (k = 0; k room.length; k+) System.out.println(房间号： + roomk.ID); System.out.println(房间类型： + roomk.tpye); System.out.println(房间还能容纳的学生数： + roomk.RN); System.out.println(); function(); break; case 3: System.out.print(请输入待查询房间的房间号：); Scanner localScanner2 = new Scanner(System.in); String str1 = localScanner2.next().toString(); for (int m = 0; m room.length; m+) if (roomm.ID.equals(str1) roomm.show(); break; function(); break; case 4: Student.showallstudent(addarray); function(); break; case 5: System.out.print(请输入待查询学生的学号：); Scanner localScanner3 = new Scanner(System.in); String str2 = localScanner3.next().toString(); for (int n = 0; n addarray.size(); n+) Student localStudent2 = (Student)addarray.get(n); if (localStudent2.ID.equals(str2) localStudent2.show(); break; function(); break; case 6: System.out.print(请输入待修改学生的学号：); Scanner localScanner5 = new Scanner(System.in); String str5 = localScanner5.next().toString(); for (int i2 = 0; i2 addarray.size(); i2+) Student localStudent3 = (Student)addarray.get(i2); String m = localStudent3.gender; String m1 = localStudent3.RoomID ; if (localStudent3.ID.equals(str5) System.out.print(请输入修改后的学生的学号：); Scanner localScanner11 = new Scanner(System.in); localStudent3.ID = localScanner11.next().toString(); System.out.print(请输入请输入修改后的学生的姓名：); localScanner11 = new Scanner(System.in); localStudent3.name = localScanner11.next().toString(); System.out.print(请输入请输入修改后的学生的性别：); localScanner11 = new Scanner(System.in