这篇文章主要介绍了java如何实现学生宿舍系统的相关知识，内容详细易懂，操作简单快捷，具有一定借鉴价值，相信大家阅读完这篇java如何实现学生宿舍系统文章都会有所收获，下面我们一起来看看吧。
学生类代码
Student.java
package dormitory;public class Student { private String id; private String name; private String sex; private String dormid; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getDormid() { return dormid; } public void setDormid(String dormid) { this.dormid = dormid; }}主操作代码
IntailStudent.java
package dormitory;import java.awt.List;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.util.ArrayList;import java.util.Iterator;import java.util.Scanner;import javax.print.DocFlavor.INPUT_STREAM;import javax.swing.event.ListSelectionEvent;import org.omg.PortableInterceptor.IORInterceptor;public class InitailStudent { private static int n=0; private static Student[] stu=new Student[100]; //主函数 public static void main(String[] args) throws IOException { boolean a=false; boolean b=false; InitailStudent student=new InitailStudent(); student.judge(a, b); } //登入函数 private void judge(boolean a, boolean b) throws IOException { do { System.out.println("欢迎进入登入页面！"); Scanner input=new Scanner(System.in); System.out.println("请输入账号："); String account=input.nextLine(); System.out.println("请输入密码："); String code=input.nextLine(); a=account.equals("admin"); b=code.equals("admin"); } while(!(a==true&&b==true)); Menu(); } //系统菜单页面 private void Menu() throws IOException{ Scanner input=new Scanner(System.in); System.out.println("------ 欢迎进入宿舍管理系统 ------"); System.out.println("------ 请选择下列操作 ------"); System.out.println("--- 1.显示所有学生信息 ---"); //Show() System.out.println("--- 2.查询学生信息 ---"); //Find() System.out.println("--- 3.增加学生信息 ---"); //Add() System.out.println("--- 4.修改学生信息 ---"); //Renew() System.out.println("--- 5.删除学生信息 ---"); //Delete() System.out.println("--- 0.退出系统 ---"); System.out.println("请输入1~5:"); int a=input.nextInt(); while(a<0||a>5) { System.out.println("输入有误，请重新输入："); a=input.nextInt(); } switch (a) { case 1: Show(); break; case 2: Find(); break; case 3: Add(); break; case 4: Renew(); break; case 5: Delete(); break; case 0: System.out.println("成功退出系统！"); System.exit(0); break; } } //显示学生的全部信息 private void Show() throws IOException{ System.out.println("您总录入的信息如下："); System.out.println("*****************************"); BufferedReader br=new BufferedReader(new FileReader("student.txt")); String line; while((line=br.readLine())!=null){ System.out.println(line); } br.close(); System.out.println("\n\r"); System.out.println("此次录入的信息为"); System.out.println("*****************************"); int i; for(i=0;i<n;i++) { System.out.println("学号："+stu[i].getId()+"\t姓名："+stu[i].getName()+"\t性别："+stu[i].getSex()+"\t宿舍号："+stu[i].getDormid()); } System.out.println("返回主菜单"); Menu(); } //查询学生信息 private void Find() throws IOException{ ArrayList<ArrayList<String>> lists = new ArrayList<>(); BufferedReader br=new BufferedReader(new FileReader("student.txt")); String line; ArrayList<String> list = new ArrayList<>(); ArrayList<String> validlist = new ArrayList<>(); while((line=br.readLine())!=null){ list.add(line.toString()); } br.close(); for(int i = 0;i<list.size();i++) if(i!=0&&list.get(i-1).startsWith("学号")){ validlist.add(list.get(i)); } for (String string : validlist) { String[] split = string.split(" "); ArrayList<String> tempString = new ArrayList<>(); for (String string2 : split) { tempString.add(string2); } lists.add(tempString); } System.out.println("共有"+lists.size()+"个学生信息"); String[][] stu1=new String[lists.size()][4]; for(int i=0;i<lists.size();i++) for(int j=0;j<4;j++){ stu1[i][j]=lists.get(i).get(j); } System.out.println("请输入学生的学号："); Scanner input=new Scanner(System.in); String d=input.next(); for(int i=0;i<stu1.length;i++) { if(d.equals(stu1[i][0])) { System.out.println("查询成功，以下为该学生的信息"); System.out.println("学号："+stu1[i][0]+"\t姓名："+stu1[i][1]+"\t性别："+stu1[i][2]+"\t宿舍号："+stu1[i][3]); System.out.println("是否继续查询，否返回菜单，是Y否N"); String cho=input.next(); char ch=cho.charAt(0); while(ch!='Y'&&ch!='y'&&ch!='N'&&ch!='n') { System.out.println("输入有误！请重新输入："); cho=input.next(); ch=cho.charAt(0); } while(ch=='Y'||ch=='y'){ Find(); } while(ch=='N'||ch=='n'){ Menu(); } } } System.out.println("没有找到该学生，是继续输入，否返回菜单，是Y否N"); String cho=input.next(); char ch=cho.charAt(0); while(ch!='Y'&&ch!='y'&&ch!='N'&&ch!='n') { System.out.println("输入有误！请重新输入："); cho=input.next(); ch=cho.charAt(0); } while(ch=='Y'||ch=='y'){ Find(); } while(ch=='N'||ch=='n'){ Menu(); } } //增加一个学生 private void Add() throws IOException{ String id; String dormid; String name; String sex; String cho; char ch; stu[n]=new Student(); Scanner input=new Scanner(System.in); if(n==0) { System.out.println("您此次还没有录入任何信息，是否录入，是Y否N"); cho=input.next(); ch=cho.charAt(0); while(ch!='Y'&&ch!='y'&&ch!='N'&&ch!='n') { System.out.println("输入有误！请重新输入："); cho=input.next(); ch=cho.charAt(0); } while(ch=='Y'||ch=='y'){ break; } while(ch=='N'||ch=='n'){ Menu(); } } FileWriter fw=new FileWriter("student.txt",true); fw.write("\r\n"); fw.write("学号 姓名 性别 宿舍号 \r\n"); System.out.println("请输入学生的学号："); id=input.next(); stu[n].setId(id); fw.write(stu[n].getId()+" "); System.out.println("请输入学生的姓名："); name=input.next(); stu[n].setName(name); fw.write(stu[n].getName()+" "); System.out.println("请输入学生的性别："); sex=input.next(); stu[n].setSex(sex); fw.write(stu[n].getSex()+" "); System.out.println("请输入学生的宿舍号："); dormid=input.next(); stu[n].setDormid(dormid); fw.write(stu[n].getDormid()+" "); n++; fw.close(); System.out.println("是否继续添加学生？否返回主菜单，是Y否N"); cho=input.next(); ch=cho.charAt(0); while(ch!='Y'&&ch!='y'&&ch!='N'&&ch!='n') { System.out.println("输入有误！请重新输入："); cho=input.next(); ch=cho.charAt(0); } while(ch=='Y'||ch=='y'){ Add(); } while(ch=='N'||ch=='n'){ Menu(); } } //修改学生信息 private void Renew() throws IOException{ ArrayList<ArrayList<String>> lists = new ArrayList<>(); BufferedReader br=new BufferedReader(new FileReader("student.txt")); String line; ArrayList<String> list = new ArrayList<>(); ArrayList<String> validlist = new ArrayList<>(); while((line=br.readLine())!=null){ list.add(line.toString()); } br.close(); for(int i = 0;i<list.size();i++) if(i!=0&&list.get(i-1).startsWith("学号")){ validlist.add(list.get(i)); } for (String string : validlist) { String[] split = string.split(" "); ArrayList<String> tempString = new ArrayList<>(); for (String string2 : split) { tempString.add(string2); } lists.add(tempString); } String[][] stu1=new String[lists.size()][4]; for(int i=0;i<lists.size();i++) for(int j=0;j<4;j++){ stu1[i][j]=lists.get(i).get(j); } int temp=0; boolean flag=false; System.out.println("请输入要修改学生的学号:"); Scanner input=new Scanner(System.in); String d=input.next(); for(int i=0;i<stu1.length;i++) { while(d.equals(stu1[i][0])) { temp=i; flag=true; break; } } if(!flag) { System.out.println("输入的学号有误,未找到该学生，是否再次进入修改,是Y,否N"); String cho1=input.next(); char ch2=cho1.charAt(0); while (ch2!='N'&&ch2!='n'&&ch2!='Y'&&ch2!='y') { System.out.println("输入无效，请重新输入："); cho1=input.next(); ch2=cho1.charAt(0); } if (ch2=='y'||ch2=='Y'){ Renew(); } if (ch2=='N'||ch2=='n'){ System.out.println("返回主菜单"); Menu(); } } else { System.out.println("您要修改的学生的信息如下："); System.out.println("学号："+stu1[temp][0]+"\t姓名："+stu1[temp][1]+"\t性别："+stu1[temp][2]+"\t宿舍号："+stu1[temp][3]); System.out.println("请以下选择要修改的内容："); System.out.println("------ 1.姓名 ------"); System.out.println("------ 2.性别 ------"); System.out.println("------ 3.宿舍号 ------"); Scanner input1=new Scanner(System.in); int a=input1.nextInt(); if(a==1) { System.out.println("请输入新的姓名："); String name=input1.next(); stu1[temp][1]=name; FileWriter fw1=new FileWriter("student.txt"); fw1.write(" "); fw1.close(); FileWriter fw=new FileWriter("student.txt",true); fw.write("\r\n"+" "+"学生信息表\r\n"); for(int i=0;i<stu1.length;i++) { fw.write("\r\n学号 姓名 性别 宿舍号 \r\n"); fw.write(stu1[i][0]+" "); fw.write(stu1[i][1]+" "); fw.write(stu1[i][2]+" "); fw.write(stu1[i][3]+" "); } fw.close(); System.out.println("修改成功！"); System.out.println("还要继续修改吗?是继续修改，否返回主菜单，是Y否N"); String cho1=input1.next(); char ch2=cho1.charAt(0); while (ch2!='N'&&ch2!='n'&&ch2!='Y'&&ch2!='y') { System.out.println("输入无效，请重新输入："); cho1=input.next(); ch2=cho1.charAt(0); } if (ch2=='y'||ch2=='Y'){ Renew(); } if (ch2=='N'||ch2=='n'){ System.out.println("返回主菜单"); Menu(); } } else if(a==2) { System.out.println("请输入新的性别："); String sex=input1.next(); stu1[temp][2]=sex; FileWriter fw1=new FileWriter("student.txt"); fw1.write(" "); fw1.close(); FileWriter fw=new FileWriter("student.txt",true); fw.write("\r\n"+" "+"学生信息表\r\n"); for(int i=0;i<stu1.length;i++) { fw.write("\r\n学号 姓名 性别 宿舍号 \r\n"); fw.write(stu1[i][0]+" "); fw.write(stu1[i][1]+" "); fw.write(stu1[i][2]+" "); fw.write(stu1[i][3]+" "); } fw.close(); System.out.println("修改成功！"); System.out.println("还要继续修改吗?是继续修改，否返回主菜单，是Y否N"); String cho1=input1.next(); char ch2=cho1.charAt(0); while (ch2!='N'&&ch2!='n'&&ch2!='Y'&&ch2!='y') { System.out.println("输入无效，请重新输入："); cho1=input.next(); ch2=cho1.charAt(0); } if (ch2=='y'||ch2=='Y'){ Renew(); } if (ch2=='N'||ch2=='n'){ System.out.println("返回主菜单"); Menu(); } } else if(a==3) { System.out.println("请输入新的宿舍号："); String dormid=input1.next(); stu1[temp][3]=dormid; FileWriter fw1=new FileWriter("student.txt"); fw1.write(" "); fw1.close(); FileWriter fw=new FileWriter("student.txt",true); fw.write("\r\n"+" "+"学生信息表\r\n"); for(int i=0;i<stu1.length;i++) { fw.write("\r\n学号 姓名 性别 宿舍号 \r\n"); fw.write(stu1[i][0]+" "); fw.write(stu1[i][1]+" "); fw.write(stu1[i][2]+" "); fw.write(stu1[i][3]+" "); } fw.close(); System.out.println("修改成功！"); System.out.println("还要继续修改吗?是继续修改，否返回主菜单，是Y否N"); String cho1=input1.next(); char ch2=cho1.charAt(0); while (ch2!='N'&&ch2!='n'&&ch2!='Y'&&ch2!='y') { System.out.println("输入无效，请重新输入："); cho1=input.next(); ch2=cho1.charAt(0); } if (ch2=='y'||ch2=='Y'){ Renew(); } if (ch2=='N'||ch2=='n'){ System.out.println("返回主菜单"); Menu(); } } else { System.out.println("输入有误，请重新输入："); Renew(); } } } //删除学生信息 private void Delete() throws IOException{ ArrayList<ArrayList<String>> lists = new ArrayList<>(); BufferedReader br=new BufferedReader(new FileReader("student.txt")); String line; ArrayList<String> list = new ArrayList<>(); ArrayList<String> validlist = new ArrayList<>(); while((line=br.readLine())!=null){ list.add(line.toString()); } br.close(); for(int i = 0;i<list.size();i++) if(i!=0&&list.get(i-1).startsWith("学号")){ validlist.add(list.get(i)); } for (String string : validlist) { String[] split = string.split(" "); ArrayList<String> tempString = new ArrayList<>(); for (String string2 : split) { tempString.add(string2); } lists.add(tempString); } String[][] stu1=new String[lists.size()][4]; for(int i=0;i<lists.size();i++) for(int j=0;j<4;j++){ stu1[i][j]=lists.get(i).get(j); } int temp=0; boolean flag=true; System.out.println("请输入你想要删除该学生的学号："); Scanner input2=new Scanner(System.in); String d=input2.next(); for(int i=0;i<stu1.length;i++) { while(d.equals(stu1[i][0])) { temp=i; flag=true; break; } } if(!flag) { System.out.println("输入的学号有误,未找到该学生，再次进入删除，请重新输入："); String cho1=input2.next(); char ch2=cho1.charAt(0); while (ch2!='N'&&ch2!='n'&&ch2!='Y'&&ch2!='y') { System.out.println("输入无效，请重新输入："); cho1=input2.next(); ch2=cho1.charAt(0); } if (ch2=='y'||ch2=='Y'){ Delete(); } if (ch2=='N'||ch2=='n'){ System.out.println("返回主菜单"); Menu(); } } else{ System.out.println("您要删除的学生的信息如下："); System.out.println("学号："+stu1[temp][0]+"\t姓名："+stu1[temp][1]+"\t性别："+stu1[temp][2]+"\t宿舍号："+stu1[temp][3]); for (int i=temp;i<stu1.length-1;i++) { stu1[i]=stu1[i+1]; } FileWriter fw1=new FileWriter("student.txt"); fw1.write(" "); fw1.close(); FileWriter fw=new FileWriter("student.txt",true); fw.write("\r\n"+" "+"学生信息表\r\n"); for(int i=0;i<stu1.length-1;i++) { fw.write("\r\n学号 姓名 性别 宿舍号 \r\n"); fw.write(stu1[i][0]+" "); fw.write(stu1[i][1]+" "); fw.write(stu1[i][2]+" "); fw.write(stu1[i][3]+" "); } fw.close(); System.out.println("删除该学生信息成功！"); System.out.println("---------------------"); } System.out.println("还要继续删除吗?是继续删除，否返回主菜单，是Y否N"); String cho2=input2.next(); char ch3=cho2.charAt(0); while (ch3!='N'&&ch3!='n'&&ch3!='Y'&&ch3!='y') { System.out.println("输入无效，请重新输入："); cho2=input2.next(); ch3=cho2.charAt(0); } if (ch3=='y'||ch3=='Y'){ Delete(); } if (ch3=='N'||ch3=='n'){ System.out.println("返回主菜单"); Menu(); } } }关于“java如何实现学生宿舍系统”这篇文章的内容就介绍到这里，感谢各位的阅读！相信大家对“java如何实现学生宿舍系统”知识都有一定的了解，大家如果还想学习更多知识，欢迎关注编程网行业资讯频道。
