第一篇：個人通訊錄管理系統,java源代碼
package cn.pab.manager;
import java.util.List;import java.util.Scanner;
import cn.pab.dao.PersonDao;import cn.pab.dao.TypeDao;import cn.pab.dao.UserDao;import cn.pab.dao.impl.PersonDaoImpl;import cn.pab.dao.impl.TypeDaoImpl;import cn.pab.dao.impl.UserDaoImpl;import cn.pab.entity.Person;import cn.pab.entity.Type;/** * 業務類
*/ public class PABmanager { /**
* 系統啟動
*/ public static void main(String[] args){
Scanner input = new Scanner(System.in);
UserDao userDao = new UserDaoImpl();
TypeDao typeDao = new TypeDaoImpl();
PersonDao personDao = new PersonDaoImpl();
System.out.println(“***********歡迎使用個人通訊錄管理系統**********”);
System.out.print(“n請選擇操作(1.系統登錄
2.密碼修改
3.取消)：”);
String in = input.next();
if(“1”.equals(in)){
boolean islogin = userDao.login();
if(islogin){
System.out.println(“***********成功登錄個人通訊錄管理系統**********”);
//System.out.print(“n請選擇操作(1.類別管理
2.聯系人管理
3.退出系統)：”);
}else{
System.out.println(“用戶名或密碼錯誤，不能登錄！”);
System.exit(-1);
}
}else if(“2”.equals(in)){
boolean modiFlag = userDao.modify();
if(modiFlag){
System.out.println(“密碼修改成功！”);}else{
System.out.println(“密碼修改失敗！”);} System.exit(-1);}else{ System.out.println(“您已經退出系統！”);System.exit(-1);}
while(true){
System.out.print(“n請選擇操作(1.類別管理
2.聯系人管理
3.退出系統)：”);String in2 = input.next();if(“1”.equals(in2)){ while(true){
System.out.print(“n請繼續選擇操作(1.新建類別
2.查詢類別
3.刪除類別
4.返回)：”);
String num = input.next();
if(“1”.equals(num)){
System.out.print(“請輸入類別的名稱：”);String lbmc = input.next();
System.out.print(“請輸入類別的說明：”);String lbsm = input.next();System.out.print(“請輸入類別的備注：”);String lbbz = input.next();
Type type = new Type(lbmc,lbsm,lbbz);
typeDao.createType(type);}else if(“2”.equals(num)){ List
System.out.println(“tt類別信息列表”);
System.out.println(“類別名稱tt類別說明tt類別備注”);
for(int i = 0;i < types.size();i++){
Type type =types.get(i);
System.out.print(type.getLbmc()+“t”);
System.out.print(type.getLbsm()+ “tt”);
System.out.println(type.getLbbz());
}
}else if(“3”.equals(num)){
System.out.print(“請輸入類別的名稱：”);
String lbmc = input.next();
Type type = new Type(lbmc,null,null);
typeDao.deleteType(type);}else if(“4”.equals(num)){ break;}else{
System.out.println(“您輸入不合法，請重新選擇！”);
}
} }else if(“2”.equals(in2)){
while(true){
System.out.print(“n請繼續選擇操作(1.新建聯系人
2.查詢聯系人
3.更新聯系人
4.刪除聯系人
5.返回)：”);
String num = input.next();
if(“1”.equals(num)){
System.out.print(“請輸入聯系人的類別名稱：”);String lb = input.next();
System.out.print(“請輸入聯系人的姓名：”);String xm = input.next();
System.out.print(“請輸入聯系人的電話：”);String dh = input.next();
System.out.print(“請輸入聯系人的手機號：”);String sjh = input.next();
System.out.print(“請輸入聯系人的工作單位：”);String gzdw = input.next();
System.out.print(“請輸入聯系人的住址：”);
String zz = input.next();
System.out.print(“請輸入聯系人的郵政編碼：”);
String yzbm = input.next();
Person person = new Person(lb,xm,dh,sjh,gzdw,zz,yzbm);
personDao.createPerson(person);
}else if(“2”.equals(num)){
System.out.print(“請輸入聯系人的姓名：”);
String name = input.next();
Person p = personDao.queryPerson(name);
System.out.println(“tt查詢到的聯系人信息”);
System.out.println(“類別t姓名t電話tt手機號tt工作單位t住址t郵政編碼”);
System.out.print(p.getLb()+ “t”);
System.out.print(p.getXm()+ “t”);
System.out.print(p.getDh()+ “t”);
System.out.print(p.getSjh()+ “t”);
System.out.print(p.getGzdw()+ “t”);
System.out.print(p.getZz()+ “t”);
System.out.println(p.getYzbm());
}
} }
}else if(“3”.equals(num)){
System.out.print(“請輸入需更新的聯系人編號：”);
int id = input.nextInt();
System.out.print(“請輸入需更新的聯系人信息選項：”);
String item = input.next();
System.out.print(“請輸入聯系人信息選項的值：”);
String val = input.next();
personDao.updatePerson(id,item, val);
}else if(“4”.equals(num)){
System.out.print(“請輸入要刪除聯系人的姓名：”);
String name = input.next();
personDao.deletePerson(name);
}else if(“5”.equals(num)){
break;
}else{
System.out.println(“您輸入不合法，請重新選擇！”);
} } }else if(“3”.equals(in2)){ System.out.println(“您已經退出系統！”);System.exit(-1);}else{ System.out.println(“您輸入不合法，請重新選擇！”);}
第二篇：java書店管理系統源代碼
Java 源代碼
public class loaduser { public String user;public String password;boolean b1;loaduser(String s1,String s2){
user=s1;
password=s2;} void load(){
System.out.println(“ 書店管理銷售系統”);
System.out.println(“**************************************”);System.out.println(“
1、登錄系統”);System.out.println(“
2、退出系統”);
System.out.println(“**************************************”);System.out.println(“請選擇：”);
int m;Scanner s=new Scanner(System.in);m=s.nextInt();
if(m==1){
for(int i=0;i<3;i++){
System.out.println(“請輸入賬戶名和密碼”);
String s3,s4;
Scanner ss=new Scanner(System.in);
s3=s.next();
s4=s.next();
if(user.equals(s3)&&password.equals(s4))b1=true;
else b1=false;
if(i==0&&b1==false)System.out.println(“用戶名或密碼輸入錯誤一次，還有兩次機會!”);
if(i==1&&b1==false)System.out.println(“用戶名或密碼輸入錯誤兩次，還有一次機會!”);
if(i==2&&b1==false){System.out.println(“三次輸入錯誤，退出系統!”);System.exit(0);}
if(b1==true){
System.out.println(“登錄成功！”);
break;} } }
if(m==2)System.exit(0);}
package manger;import java.util.ArrayList;import java.util.Scanner;import manger.vip;import System.menu;public class vipmanger { static ArrayList
vipgroup.add(new vip(“001”,“王芳”,100));
vipgroup.add(new vip(“002”,“李娜”,60));
vipgroup.add(new vip(“003”,“楊麗”,50));
vipgroup.add(new vip(“004”,“孫潔”,150));
vipgroup.add(new vip(“005”,“肖青”,300));} static void addd(){ System.out.println(“請一次輸入編號，姓名，積分”);
String S1,S2;
int A;
Scanner s=new Scanner(System.in);
S1=s.next();
S2=s.next();
A=s.nextInt();
vip v1=new vip(S1,S2,A);vipgroup.add(v1);}
static void delete(){ System.out.println(“請輸入要求刪除的會員編號：”);String s;Scanner me=new Scanner(System.in);s=me.next();
boolean b1=true;
for(int i=0;i if(s.equals(vipgroup.get(i).ID)){vipgroup.remove(i);b1=false;} if(b1)System.out.println(“查無此會員！”);} static void correct(){ System.out.println(“請輸入要修改信息的會員編號：”);String sss;Scanner s=new Scanner(System.in);sss=s.next(); boolean b1=true; for(int i=0;i if(sss.equals(vipgroup.get(i).ID)){ b1=false; System.out.println(“請輸入新的姓名和積分：”); String ss1;Scanner s7=new Scanner(System.in);ss1=s7.next();vipgroup.get(i).name=ss1;int b; Scanner s8=new Scanner(System.in); b=s8.nextInt(); vipgroup.get(i).score=b;} if(b1==true)System.out.println(“查無此會員！”);} static void select(){ System.out.println(“請輸入要查詢的會員編號：”);String s;Scanner me=new Scanner(System.in);s=me.next(); boolean b1=true; for(int i=0;i if (s.equals(vipgroup.get(i).ID)){System.out.println(vipgroup.get(i).ID+“ ”+vipgroup.get(i).name+“ ”+vipgroup.get(i).score);b1=false;} if(b1==true)System.out.println(“查無此會員！”);} static void show(){ for(int i=0;i System.out.println(vipgroup.get(i).ID+“ ”+vipgroup.get(i).name+“ ”+vipgroup.get(i).score);} public static void exchange(String s1,int a,int b){ boolean b1=true; for(int i=0;i if(s1.equals(vipgroup.get(i).ID)) {if(vipgroup.get(i).score<(a*b))System.out.println(“積分不足，不能兌換！”); else vipgroup.get(i).score-=a*b; b1=false; } if(b1==true)System.out.println(“查無此會員，不能兌換！”);} public static void shop(String s1,int a,int b){ boolean b1=true; for(int i=0;i if(b1==true)System.out.println(“查無此會員,不能購買!”);} public static boolean start(){ menu m=new menu();m.vip(); int x;Scanner me= new Scanner(System.in);x=me.nextInt(); switch(x){ case 1:show();break; case 2:delete();break; case 3:addd();break; case 4:correct();break; case 5:select();break; case 6:return false;} return true;} } public class book { public String number; public String name; public int price; public int jf;book(String s1,String s2,int a,int b){ number=s1; name=s2; price=a; jf=b;} } package manger;import java.util.ArrayList;import java.util.Scanner;import System.menu;public class bookmanger { static ArrayList for(i=0;i return a;} public static String name(String s1){ String a = “無此書”;for(int i=0;i return a;} public static boolean start(){ menu m=new menu();m.bookmanger();int x;Scanner me= new Scanner(System.in);x=me.nextInt();switch(x){ case 1:show();break;case 2:delete();break;case 3:addd();break;case 4:return false;} return true;} } public class gift { public String number;public String caption;public int costjf;gift(String s1,String s2,int a){ number=s1;caption=s2;costjf=a;} } package manger;import java.util.ArrayList;import java.util.Scanner;import manger.vipmanger;import manger.vip;import System.menu;import manger.gift;public class giftmanger { static ArrayList giftgroup.add(new gift(“001”,“鼠標墊”,100)); giftgroup.add(new gift(“002”,“書夾子”,50)); giftgroup.add(new gift(“003”,“中性筆”,30));} static void show(){ for(int i=0;i System.out.println(“請輸入要刪除的禮品編號：”); String s; Scanner ss=new Scanner(System.in); s=ss.next(); boolean b1=true; for(int i=0;i if(s.equals(giftgroup.get(i).number)) {giftgroup.remove(i); b1=false; } if(b1)System.out.println(“查無此禮品！”);} static void addd(){ System.out.println(“請輸入要添加的禮品編號，名稱，所需積分：”); String s1,s2; int a; Scanner me=new Scanner(System.in); s1=me.next(); s2=me.next(); a=me.nextInt(); gift g1=new gift(s1,s2,a); giftgroup.add(g1);} static void exchange(){ String s1,s2,c=“無此禮品”; int a,b=0; giftmanger.show(); Scanner me=new Scanner(System.in); System.out.println(“請輸入您的會員編號：”); s1=me.next(); System.out.println(“請輸入您要兌換的禮品編號：”); s2=me.next(); System.out.println(“請輸入您要兌換的禮品數量：”); a=me.nextInt(); boolean b1=true; for(int i=0;i {b=giftgroup.get(i).costjf; c=giftgroup.get(i).caption; b1=false; } if(b1==true)System.out.println(“查無此禮品！”); else vipmanger.exchange(s1, a, b); System.out.println(“兌換結果：”); System.out.println(“禮品名稱”+“ ”+“禮品積分”+“ ”+“禮品數量”+“ ”+“消耗積分”); System.out.println(c+“ ”+b+“ ”+a+“ ”+(a*b));} public static boolean start(){ menu m=new menu(); m.gift(); int x; Scanner me= new Scanner(System.in); x=me.nextInt(); switch(x){ case 1:show();break; case 2:delete();break; case 3:addd();break; case 4:exchange();break; case 5:return false; } return true;} } public class shoping { static void shop(){ bookmanger.show();String s1,s2,s3; int a,b=0;Scanner me=new Scanner(System.in);System.out.println(“請輸入您的會員編號：”);s1=me.next();System.out.println(“請輸入書籍編號：”);s2=me.next();System.out.println(“請輸入購買數量：”);a=me.nextInt();b=bookmanger.price(s2);s3=bookmanger.name(s2);System.out.println(“書名”+“ ”+“單價”+“ ”+“數量”+“ ”+“總價”);System.out.println(s3+“ ”+b+“ ”+a+“ ”+(a*b));vipmanger.shop(s1, a, b);} public static boolean start(){ menu m=new menu(); m.shopping(); int x; Scanner me= new Scanner(System.in); x=me.nextInt(); switch(x){ case 1:shop();break; case 2:return false; } return true;} } public class menu { void mainmenu(){ System.out.println(“ 書店管理系統”); System.out.println(“****************************”); System.out.println(“書店管理系統”); System.out.println(“ 1、會員管理”); System.out.println(“ 2、書籍管理”); System.out.println(“ 3、購物結算”); System.out.println(“ 4、積分兌換禮品”); System.out.println(“ 5、注銷”); System.out.println(“****************************”); } public void vip(){ System.out.println(“書店管理系統>會員管理：”); System.out.println(“****************************”); System.out.println(“ 1、顯示會員信息”); System.out.println(“ 2、刪除會員”); System.out.println(“ 3、添加會員”); System.out.println(“ 4、修改會員信息”); System.out.println(“ 5、查詢會員”); System.out.println(“ 6、返回上層菜單”); System.out.println(“****************************”); } public void bookmanger(){ System.out.println(“書店管理系統>書籍管理：”); System.out.println(“****************************”); System.out.println(“ 1、書籍信息查詢”); System.out.println(“ 2、刪除書籍”); System.out.println(“ 3、添加書籍”); System.out.println(“ 4、返回上層菜單”); System.out.println(“****************************”); } public void shopping(){ System.out.println(“書店管理系統>購物結算：”); System.out.println(“****************************”); System.out.println(“ 1、購物”); System.out.println(“ 2、返回上層菜單”); System.out.println(“****************************”); } public void gift(){ System.out.println(“書店管理系統>禮品兌換：”); System.out.println(“****************************”); System.out.println(“ 1、禮品信息”); System.out.println(“ 2、刪除禮品”); System.out.println(“ 3、添加禮品”); System.out.println(“ 4、兌換禮品”); System.out.println(“ 5、返回上層菜單”); System.out.println(“****************************”); } public static void main(String[] args){ loaduser u1=new loaduser(“manger”,“416426”); u1.load();menu m1=new menu(); vipmanger vip=new vipmanger();bookmanger book=new bookmanger();giftmanger gi=new giftmanger(); while(true){ m1.mainmenu(); int x; Scanner me=new Scanner(System.in); x=me.nextInt(); switch(x){ case 1:while(vipmanger.start());break; case 2:while(bookmanger.start());break; case 3:while(shoping.start());break; case 4:while(giftmanger.start());break; case 5:u1.load(); } } } } package com.student.enty; //姓名學號語文數學英語public class Student { private String name; private int num; private double chi; private double mat; private double eng;//聲明成員變量 public String getName(){ return name; } public void setName(String name){this.name = name; } public int getNum(){ return num; } public void setNum(int num){this.num = num; } public double getChi(){ return chi; } public void setChi(double chi){this.chi = chi; } public double getMat(){ return mat; } public void setMat(double mat){this.mat = mat; } public double getEng(){ return eng; } public void setEng(double eng){this.eng = eng; } } import java.io.*;import java.util.*;public class LittleProgram { static boolean isDelete = true; static boolean isFind = true; public static void main(String [] args)//主方法,程序從這里開始運行 throws IOException,NumberNotFoundException { int choice=-1; do{ LittleProgram lp = new LittleProgram(); System.out.println(); System.out.println(“t #”); System.out.println(); System.out.println(“tt通訊錄管理系統”); System.out.println(“t 請用號碼插入,查找,修改,刪除數據”); System.out.println(); System.out.println(“t #n”); System.out.print(“1.增加號碼:n”+ “2.查找號碼:n”+ “3.刪除號碼:n”+ “4.清除所有號碼:n”+ “5.把號碼全部打印到屏幕n”+ “6.把通訊錄按號碼排序n”+ “7.修改號碼n”+ “8.統計通碼訊錄的總人數n”+ “9.關于作者n”+ “0.退出程序.n” + “輸入:”); BufferedReader in = //從終 new BufferedReader（//端接 new InputStreamReader(System.in));//收數 String inputLine = in.readLine(); //字選 choice= Integer.valueOf(inputLine).intValue();//項; switch(choice) { case 1: {//1.增加號碼 String str = lp.inputData(); lp.addData(str); System.out.println(“增加號碼成功.”); timeOut(1); }break; case 2: {//2.查找號碼 long find = 0; System.out.print(“請輸入你要查找的號碼:”); BufferedReader inn = new BufferedReader（new InputStreamReader(System.in)); String inputLi = inn.readLine(); find = Integer.valueOf(inputLi).longValue(); lp.findData(find); timeOut(2); }break; case 3: {//3.刪除號碼 long deleteNumber = 0; System.out.print(“請輸入你想刪除號碼:”); BufferedReader bf = new BufferedReader（new InputStreamReader(System.in)); String inputL = bf.readLine(); deleteNumber = Integer.valueOf(inputL).longValue(); lp.deleteData(deleteNumber); if(isDelete) System.out.println(“刪除號碼成功!”); timeOut(1); }break; case 4: { lp.clearData();//4.清除所有號碼 timeOut(1); }break; case 5: { print();//5.把號碼全部打印到屏幕 timeOut(2); }break; case 6: { lp.numSort();//6.把號碼按號碼排序 System.out.println(“按照號碼從小到大排序成功!n”+ “排序后:n”); print(); timeOut(2); }break; case 7: { lp.rewrite();//7.修改號碼 timeOut(2); }break; case 8: { int count = lp.count(); System.out.println(“共有”+count+“個號碼記錄.”); timeOut(2); }break; case 9: { System.out.print(“tt李雪萍n”+ “tt安徽理工大學理學院n”+ “ttQQ:1154646392n”); timeOut(4); }break; }}while(choice!= 0); System.out.println(“Bye!^-^”); System.exit(0); } public String inputData()//從終端接收數據的方法,返回字符串 throws IOException,NumberFormatException { System.out.print(“請依次輸入 :號碼 姓名 地址 生日n” + “每項數據請用空格隔開:”); String all = “"; try{ BufferedReader in = //從終 new BufferedReader（//端接 new InputStreamReader(System.in)); //收數 String inputLine = in.readLine(); //據 StringTokenizer str = new StringTokenizer(inputLine,” “);//接收的數據用空格隔開,這個類用來提取每個字符串 long num = Integer.valueOf(str.nextToken()).longValue();//號碼 String name =(String)str.nextToken(); //姓名 String add =(String)str.nextToken(); // 地址 String birth =(String)str.nextToken();//出生年月 all = String.valueOf(num)+” , “+ name +” , “+ add +” , “+ String.valueOf(birth);//把所有的數據用” , “隔開然后在連起來放進字符串all }catch(IOException e){} catch(NumberFormatException e){} return all;//返回字符串all } public void addData(String str)//增加號碼的方法 throws IOException { String s1 =”“,s2=”“ ,s3= ”“; File file = new File(”c:data.txt“); if(file.exists())//如果文件data.txt存在 { try{ BufferedReader in = new BufferedReader（new FileReader(file)); while((s1=in.readLine())!=null) s2+=s1+”n“;//把文件中的每行數據全部放進一個字符串s2 s2+=str+”n“; //再把s2于形參str相連放進s2 BufferedReader in2 = //把字符 new BufferedReader（//串s2也 new StringReader(s2)); //就是原 PrintWriter out = //文件+ new PrintWriter（//形參str(新輸入的一行數據) new BufferedWriter（//重新寫進data.txt new FileWriter(file))); //覆蓋原來的數據 while((s3=in2.readLine())!= null) { out.println(s3); } out.close(); //System.out.println(”write data true.“); }catch(IOException e){} }else{ System.err.println(”File “data” Missing!“); } } public void clearData()//清除data.txt的所有數據的方法 throws IOException { File file = new File(”c:data.txt“); if(file.exists())//如果文件在{ try{ PrintWriter out = new PrintWriter（new BufferedWriter（new FileWriter(file))); out.print(”“);//在文件data.txt里寫進一個空字符,所以清除了原來的內容 out.close();//關閉文件 System.out.println(”clear data true!“); }catch(IOException e){} }else{ System.err.println(”File “data” Missing!“); } } public void deleteData(long deleteNumber)//刪除某條號碼數據 throws IOException,FileNotFoundException { isDelete = true; try{ DataMap mp = new DataMap();//生成一個自己編寫的容器 long j=0; String s1=”“,s2=”“,s3=”“; BufferedReader in = new BufferedReader（new FileReader(”c:data.txt“)); while((s1=in.readLine())!=null) { j=numberTokenizer(s1); mp.put(j,s1); } try{ if(mp.containsKey(String.valueOf(deleteNumber).toString())) { mp.remove(deleteNumber); }else throw new NumberNotFoundException(); Collection c = mp.values(); Iterator iter = c.iterator(); while(iter.hasNext()) { s1 =(String)iter.next(); s3 +=s1+”n“; } BufferedReader in2 = new BufferedReader（new StringReader(s3)); PrintWriter out = new PrintWriter（new BufferedWriter（new FileWriter(”c:data.txt“))); //System.out.println(”delete No“+deleteNumber); while((s1 = in2.readLine())!=null) { out.println(s1); } out.close();}catch(NumberNotFoundException e){ isDelete = false; System.out.println(deleteNumber+” no found :(“); } }catch(IOException e){} } public long numberTokenizer(String s) throws IOException { StringTokenizer st = new StringTokenizer(s,” “); return Integer.valueOf((st.nextToken())).longValue(); } public void findData(long find)//查找數據 throws IOException,NumberNotFoundException { isFind = true; String s = ”“,findString =”“;long i;DataMap dm = new DataMap();BufferedReader in = new BufferedReader（new FileReader(”c:data.txt“)); while((s=in.readLine())!=null) { i=numberTokenizer(s); dm.put(i,s); } //in.close(); try{ if(dm.containsKey(String.valueOf(find).toString())) { findString = dm.get(find); System.out.println(”學號“+find+”學生的資料是:“); System.out.println(findString); }else throw new NumberNotFoundException(); }catch(NumberNotFoundException e){ System.out.println(find+” no found :(“); isFind = false; } } public static void print()//讀取文本文件把數據打印到終端的方法 throws IOException { try{ BufferedReader in = new BufferedReader（new FileReader(”c:data.txt“)); String read = ”“; while((read = in.readLine())!=null) System.out.println(read); }catch(IOException e){} } public static void timeOut(double sec)//停頓短暫時間的一個方法完全可以不要這個功能 { double seconds = sec; long t = System.currentTimeMillis()+(int)(seconds*1000); while((System.currentTimeMillis()) ; } public void numSort()//按學號排序 throws IOException { long i = 0; String s = ”“; try{ DataArrayList dal = new DataArrayList(); BufferedReader in = new BufferedReader（new FileReader(”c:data.txt“)); while((s=in.readLine())!=null) { i=numberTokenizer(s); dal.add(i); } Collections.sort(dal); DataMap dm = new DataMap(); BufferedReader in2 = new BufferedReader（new FileReader(”c:data.txt“)); while((s=in2.readLine())!=null) { i=numberTokenizer(s); dm.put(i,s); } PrintWriter out = new PrintWriter（new BufferedWriter（new FileWriter(”c:data.txt“))); Iterator it = dal.iterator(); long temp = 0; String tempStr = ”“; while(it.hasNext()) { temp = Integer.valueOf((String)it.next()).longValue(); tempStr = dm.get(temp); out.println(tempStr); } out.close(); }catch(IOException e){} } public void rewrite() throws IOException,NumberNotFoundException { try{ System.out.print(”請輸入你要修改的學生號碼:“); BufferedReader in = new BufferedReader（new InputStreamReader(System.in)); String inputLine = in.readLine(); long num = Integer.valueOf(inputLine).longValue(); findData(num); if(isFind) { deleteData(num);System.out.print(”請重新輸入該號碼:“);String str = inputData(); addData(str); System.out.println(”rewrite true!“); } }catch(IOException e){} catch(NumberNotFoundException e){} } public int count() throws IOException { DataArrayList dal = new DataArrayList(); try{ String s = ”“; long i =0; BufferedReader in = new BufferedReader（new FileReader(”c:data.txt“)); while((s=in.readLine())!=null) { i=numberTokenizer(s); dal.add(i); } }catch(IOException e){} return dal.size(); } } /* * * @author RangWei * TODO 這是個寫的一個容器,繼承公共類HashMap * 大概的功能就相當一個數組 * */ class DataMap extends HashMap//一個存儲數據的Map { public void put(long i,String str)//把學號和數據放進這個Map { //以后一個學號(key)對應的是一個人的數據(value) put(String.valueOf(i).toString(),str); } public void remove(long i)//接收學號,然后刪除學號(key)和它對應的數據(value) { remove(String.valueOf(i).toString().toString()); } public String get(long i)//接收一個學號,然后返回這個key對應的value { String s = String.valueOf(i).toString(); if(!containsKey(s)) { System.err.println(”Not found Key: "+s); } return(String)get(s); } } /* * * @author RangWei * * TODO 這個類繼承ArrayList * 用來按數字排序,在用號碼排序時要用到它 * */ class DataArrayList extends ArrayList { public void add(long num) { String numToString = String.valueOf(num).toString(); add(numToString); } } /* * * @author RangWei * * TODO 增加的一個Exception,主要是在文件里沒有要找 * 的號碼就拋出 * */ class NumberNotFoundException extends Exception { public NumberNotFoundException() {} } 通訊錄管理系統的設計與實現源代碼 #include } } } iCount=t;} infile.close();} void Print(Student *h)//打印記錄 { if(h==NULL){ cout<<“n****************************************nn”;cout<<“沒有學生記錄！n”;cout<<“n****************************************n”;return;} cout<<“n********************************************************************************nn”;cout<<“所有的學生：nn”;cout<<“-----------n”;cout<<“| ”< if(h==NULL){cout<<“n****************************************n”;cout<<“沒有學生記錄！n”;cout<<“n****************************************n”;return;} cout<<“n********************************************************************************n”;cout<<“所有學生：nn”;cout<<“-----------n”;cout<<“| ”< void Print_search(Student *h)//查詢 { if(h==NULL){cout<<“n********************************************************************************n”;cout<<“沒有學生記錄！n”;cout<<“n****************************************n”;return;} cout<<“n********************************************************************************n”;cout<<“所查學生：nn”;cout<<“-----------n”;cout<<“| ”< { cout<<“-----------n”;cout<<“| ”< cout<<“n********************************************************************************nn”;cout<<“請輸入內容：”< cout<<“n********************************************************************************n”;cout<<“[1] 增加一個學生n” <<“[2] 顯示所有的學生以及他們的成績n” <<“[3] 顯示數組中平均成績<40的學生以及他們的成績n” <<“[4] 顯示數組中學號為I的學生信息n” <<“[5] 存盤并退出n”;cout<<“********************************************************************************nn”;cout<<“請選擇操作項：[1-5] ”;cin>>n;} } }第三篇：學生成績管理系統 java源代碼
第四篇：數據結構課程設計—java通訊錄管理系統
第五篇：通訊錄管理系統的設計與實現c++源代碼
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