Java开学考试感想及代码

本次开学考试是对Java基础的考察，做的是一个公寓宿舍管理系统，比上届的论文查重系统简单的多，但结果却差强人意，

在家中的学习和练习还不够，导致编程的时候题目的功能并不能实现，最后导致编程的结果不尽人意。

最后在学习Java的过程中我得出这样的结论：

1.学习中，要养成良好的习惯（写括号时要成对，字母大小写要区分，单词拼写要准确）。

2．在学习的过程中，最好不是仅仅停留在java表层，不是抄书上的例子运行出结果就可以。要注意，即便对一个简单的例子也要有耐心去琢磨、调试、改动。

3．在学习的过程中一定要动手做、试着写代码，而不是抱一本书看看就行。很多东西和体会必须自己动手才能真正属于自己。

4. 在 Java 的学习过程中，可能会遇到形形色色的问题不容易解决，应多去专业论坛了解相关的知识，书本上的知识有限。要会从网上搜索有用的信息 加以整理，促进学习的深入和知识水平的提高。

看了好多网上课程，说学到一定程度要尝试着自己做东西，但觉得自己仅仅经过一学期的学习，还远远不够，希望自己在以后学习中继续努力，能够真真正正拥有一门编程语言，对自己今后的发展起到作用。在学习java语言的同时，也让我学会了如何来发现问题，如何解决问题，怎样有效的学习等等，相信会对我一生都有帮助。

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package test;   public class RoomInformation {      private String roomno;      private String stunno1;      private String stunno2;      private String stunno3;      private String stunno4;      private int hygienescore;           public String getRoomno() {         return roomno;     }     public void setRoomno(String roomno) {         this.roomno = roomno;     }     public String getStunno1() {         return stunno1;     }     public void setStunno1(String stunno1) {         this.stunno1 = stunno1;     }     public String getStunno2() {         return stunno2;     }     public void setStunno2(String stunno2) {         this.stunno2 = stunno2;     }     public String getStunno3() {         return stunno3;     }     public void setStunno3(String stunno3) {         this.stunno3 = stunno3;     }     public String getStunno4() {         return stunno4;     }     public void setStunno4(String stunno4) {         this.stunno4 = stunno4;     }     public int getHygienescore() {         return hygienescore;     }     public void setHygienescore(int hygienescore) {         this.hygienescore = hygienescore;     }     public RoomInformation(String roomno, String stunno1, String stunno2, String stunno3, String stunno4,             int hygienescore) {         this.roomno = roomno;         this.stunno1 = stunno1;         this.stunno2 = stunno2;         this.stunno3 = stunno3;         this.stunno4 = stunno4;         this.hygienescore = hygienescore;     }        }

　　

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package test;   import java.util.Scanner;   public class RoomManagement {       static Scanner sc=null;       static RoomInformation[] s = new RoomInformation[10];             public static void main(String[] args) {           sc=new Scanner(System.in);         RoomInformation s0 = new RoomInformation("9#101","20213000","20213001","20213002","20213003",0);         RoomInformation s1 = new RoomInformation("9#102","20213100","20213101","20213102","20213103",0);         RoomInformation s2 = new RoomInformation("9#103","20213200","20213201","20213202","",0);         RoomInformation s3 = new RoomInformation("9#104","20213300","","","",0);         RoomInformation s4 = new RoomInformation("9#105","20213400","20213401","","",0);         RoomInformation s5 = new RoomInformation("9#106","20213500","20213501","20213502","20213503",0);         RoomInformation s6 = new RoomInformation("9#107","20213600","20213601","20213602","20213603",0);         RoomInformation s7 = new RoomInformation("9#108","","","","",0);         RoomInformation s8 = new RoomInformation("9#109","","","","",0);         RoomInformation s9 = new RoomInformation("9#110","","","","",0);         s[0]=s0;         s[1]=s1;         s[2]=s2;         s[3]=s3;         s[4]=s4;         s[5]=s5;         s[6]=s6;         s[7]=s7;         s[8]=s8;         s[9]=s9;         while(true) {         show();         System.out.println("请输入你的选择：");         int a=sc.nextInt();         if(a>6||a<1) {             System.out.println("该选项不存在");             continue;         }         if(a==6) System.exit(0);         switch(a) {         case 1:sushechaxun();break;         case 2:anpaixinsushe();break;         case 3:tiaozhengsushe();break;         case 4:susheweishengpingjia();break;         case 5:weishengjianchaqingkuang();break;         }         }               }              public static void show() {         System.out.println("***********************************************************");         System.out.println("                      石家庄铁道大学                           ");         System.out.println("                  学生公寓管理系统v2022                        ");         System.out.println("***********************************************************");         System.out.println("                      1、宿舍查询                             ");         System.out.println("                      2、安排新宿舍                            ");         System.out.println("                      3、调整宿舍                              ");         System.out.println("                      4、宿舍卫生评价                           ");         System.out.println("                      5、卫生检查情况查询                        ");         System.out.println("**********************************************************");      }             public static String zhuangtai(RoomInformation c){           int count=0;           StringBuilder s=new StringBuilder("");           if(c.getStunno1().length()!=0) count++;           if(c.getStunno2().length()!=0) count++;           if(c.getStunno3().length()!=0) count++;           if(c.getStunno4().length()!=0) count++;           if(count==0) s.append("空宿舍");           if(count==1) s.append("空3人");           if(count==2) s.append("空2人");           if(count==3) s.append("空1人");           if(count==4) s.append("已满");           return s.toString();      }             public static int renshu(RoomInformation c){       int count=0;       if(c.getStunno1().length()!=0) count++;       if(c.getStunno2().length()!=0) count++;       if(c.getStunno3().length()!=0) count++;       if(c.getStunno4().length()!=0) count++;       return count;     }             public static void sushechaxun(){             System.out.println("***********************************************************");             System.out.println("                      石家庄铁道大学                           ");             System.out.println("                  学生公寓管理系统v2022                        ");             System.out.println("***********************************************************");             System.out.println("                     宿舍详细信息列表                          ");         for(int i=0;i<10;i++)             System.out.println("                    "+(i+1)+"、"+"  "+s[i].getRoomno()+"  "              +renshu(s[i])+"人  "+zhuangtai(s[i])+"                    ");             System.out.println("***********************************************************");     }             public static int anpaixinsushe() {             int count=0;             int k=0;             System.out.println("***********************************************************");             System.out.println("                      石家庄铁道大学                           ");             System.out.println("                  学生公寓管理系统v2022                        ");             System.out.println("                       安排新宿舍                             ");             System.out.println("***********************************************************");             System.out.println("                    空宿舍详细信息列表                          ");             for(int i=0;i<10;i++)                if(renshu(s[i])==0) {                    count++;                 System.out.println("                    "+count+"、"+"  "+s[i].getRoomno()+"  "                         +renshu(s[i])+"人  "+zhuangtai(s[i])+"                    ");                }             System.out.print("                    请输入新宿舍号：");             String a=sc.next();             int r=0;             for(int i=0;i<10;i++)             if(a.equals(s[i].getRoomno())) {                 if(renshu(s[i])==0)                     r=1;                 k=i;                 break;             }             if(r==0) {System.out.println("该宿舍不是空宿舍，无法安排新生");}             if(r==1) {                 System.out.println("***********************************************************\r\n"                                  + "                     石家庄铁道大学\r\n"                                  + "                  学生公寓管理系统v2022\r\n"                                  + "                     安排新宿舍\r\n"                                  + "***********************************************************\r\n"                                  + "                      新宿舍号：");                 System.out.println("                      1、床位1：");                 System.out.println("                      2、床位2：");                 System.out.println("                      3、床位3：");                 System.out.println("                      4、床位4：");                 String a1=sc.next();                 while(panduan(a1)==0) {                     System.out.println("该学生已分配宿舍");                     System.out.println("请重新输入");                     a1=sc.next();                 }                 if(a1.equals("END")) return 1;                 else s[k].setStunno1(a1);                 String a2=sc.next();                 while(panduan(a2)==0) {                     System.out.println("该学生已分配宿舍");                     System.out.println("请重新输入");                     a2=sc.next();                 }                 if(a2.equals("END")) return 1;                 else s[k].setStunno1(a2);                 String a3=sc.next();                 while(panduan(a3)==0) {                     System.out.println("该学生已分配宿舍");                     System.out.println("请重新输入");                     a3=sc.next();                 }                 if(a3.equals("END")) return 1;                 else s[k].setStunno1(a3);                 String a4=sc.next();                 while(panduan(a4)==0) {                     System.out.println("该学生已分配宿舍");                     System.out.println("请重新输入");                     a4=sc.next();                 }                 if(a4.equals("END")) return 1;                 else  s[k].setStunno1(a4);System.out.println("该宿舍已满");             }             return 1;      }             public static int panduan(String a) {                     for(int i=0;i<10;i++){              int count=0;              if(a.equals(s[i].getStunno1())) count++;              if(a.equals(s[i].getStunno2())) count++;              if(a.equals(s[i].getStunno3())) count++;              if(a.equals(s[i].getStunno4())) count++;              if(count!=0) return 0;          }          return 1;      }             public static int tiaozhengsushe() {             int count=0;             int k=0;             System.out.println("***********************************************************");             System.out.println("                      石家庄铁道大学                           ");             System.out.println("                  学生公寓管理系统v2022                        ");             System.out.println("                        调整宿舍                              ");             System.out.println("***********************************************************");             System.out.println("                    有空床位宿舍详细信息列表                      ");             for(int i=0;i<10;i++)                 if(renshu(s[i])>0&&renshu(s[i])<4) {                        count++;                     System.out.println("                    "+count+"、"+"  "+s[i].getRoomno()+"  "                             +renshu(s[i])+"人  "+zhuangtai(s[i])+"                    ");                    }             System.out.print("                    请输入待调整宿舍号：");             String a=sc.next();             int r=0;             for(int i=0;i<10;i++)             if(a.equals(s[i].getRoomno())) {                 if(renshu(s[i])>=1&&renshu(s[i])<=3)                     r=1;                 k=i;                 break;             }             if(r==0) {System.out.println("该宿舍没有空床位，无法调整");}             if(r==1) {                 int i=0;                 System.out.println("***********************************************************\r\n"                                  + "                     石家庄铁道大学\r\n"                                  + "                  学生公寓管理系统v2022\r\n"                                  + "                       调整宿舍\r\n"                                  + "***********************************************************\r\n"                                  + "                      待调整宿舍号：");                 if(s[k].getStunno1().length()!=0)                      i++;                 System.out.println("                     1、床位1： "+s[k].getStunno1());                 if(s[k].getStunno2().length()!=0)                     i++;                 System.out.println("                     2、床位2： "+s[k].getStunno2());                 if(s[k].getStunno3().length()!=0)                     i++;                 System.out.println("                     3、床位3： "+s[k].getStunno3());                 if(s[k].getStunno4().length()!=0)                     i++;                 System.out.println("                     4、床位4： "+s[k].getStunno4());                 String a1=sc.next();                 while(panduan(a1)==0) {                     System.out.println("该学生已分配宿舍");                     System.out.println("请重新输入");                     a1=sc.next();                 }                 if(a1.equals("END")) return 1;                 else {if(s[k].getStunno1().length()==0) s[k].setStunno1(a1);                       else  if(s[k].getStunno2().length()==0) s[k].setStunno2(a1);                       else  if(s[k].getStunno3().length()==0) s[k].setStunno3(a1);                       else  s[k].setStunno4(a1);                       }                 i++;                 if(i!=4) {                 String a2=sc.next();                 while(panduan(a2)==0) {                     System.out.println("该学生已分配宿舍");                     System.out.println("请重新输入");                     a2=sc.next();                 }                 if(a2.equals("END")) return 1;                 else {if(s[k].getStunno1().length()==0) s[k].setStunno1(a2);                       else  if(s[k].getStunno2().length()==0) s[k].setStunno2(a2);                       else  if(s[k].getStunno3().length()==0) s[k].setStunno3(a2);                      else  s[k].setStunno4(a2);                      }                 }                 else {System.out.println("该宿舍已满"); return 1;}                 i++;                 if(i!=4) {                 String a3=sc.next();                 while(panduan(a3)==0) {                     System.out.println("该学生已分配宿舍");                     System.out.println("请重新输入：");                     a3=sc.next();                 }                 if(a3.equals("END")) return 1;                 else {if(s[k].getStunno1().length()==0) s[k].setStunno1(a3);                       else  if(s[k].getStunno2().length()==0) s[k].setStunno2(a3);                       else  if(s[k].getStunno3().length()==0) s[k].setStunno3(a3);                      else  s[k].setStunno4(a3);                      }                 }                 else {System.out.println("该宿舍已满"); return 1;}                               }             return 1;      }             public static void susheweishengpingjia() {             int r=0;             int k=0;             while(r==0) {             System.out.println("***********************************************************");             System.out.println("                      石家庄铁道大学                           ");             System.out.println("                  学生公寓管理系统v2022                        ");             System.out.println("                       宿舍卫生评价                           ");             System.out.println("***********************************************************");             System.out.println("                    请输入待评价宿舍号：");             String a=sc.next();             for(int i=0;i<10;i++)             if(a.equals(s[i].getRoomno())) {                 if(renshu(s[i])!=0)                     r=1;                 k=i;                 break;             }             if(r==0) {System.out.println("该宿舍为空宿舍");}             if(r==1) {                 System.out.println("                    1、"+"床位1  "                  +s[k].getStunno1()+"                      ");                 System.out.println("                    2、"+"床位2  "                      +s[k].getStunno1()+"                      ");                 System.out.println("                    3、"+"床位3  "                      +s[k].getStunno1()+"                      ");                 System.out.println("                    4、"+"床位4  "                      +s[k].getStunno1()+"                      ");                 System.out.println("输入宿舍卫生评价分数：");                 int w=sc.nextInt();                 while(w>100||w<0){                     System.out.println("输入错误");                     System.out.println("请重新输入：");                     w=sc.nextInt();                     }                 s[k].setHygienescore(w);             }             }      }              public static String weishengdengji(RoomInformation c){       StringBuilder s=new StringBuilder("");       if(c.getHygienescore()>=90) s.append("优秀");       else if(c.getHygienescore()>=80) s.append("良好");       else if(c.getHygienescore()>=60) s.append("合格");       else  s.append("不合格");       return s.toString();       }             public static void weishengjianchaqingkuang() {             System.out.println("***********************************************************");             System.out.println("                      石家庄铁道大学                           ");             System.out.println("                  学生公寓管理系统v2022                        ");             System.out.println("                      卫生检查情况查询                           ");             System.out.println("***********************************************************");             System.out.println("                     宿舍卫生检查情况信息                        ");             for(int i=0;i<10;i++)                 System.out.println("                    "+(i+1)+"、"+"  "+s[i].getRoomno()+"  "                  +s[i].getHygienescore()+"   "+weishengdengji(s[i]));                 System.out.println("***********************************************************");      }        }