import?java.io.File;
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import?java.io.FileOutputStream;
import?java.util.ArrayList;
import?java.util.List;
import?java.util.Scanner;
import?org.dom4j.Document;
import?org.dom4j.DocumentHelper;
import?org.dom4j.Element;
import?org.dom4j.io.OutputFormat;
import?org.dom4j.io.SAXReader;
import?org.dom4j.io.XMLWriter;
public?class?Book?{
private?int?no;
private?String?name;
private?double?value;
public?Book()?{
}
public?Book(int?no,?String?name,?double?value)?{
this.no?=?no;
this.name?=?name;
this.value?=?value;
}
public?double?getValue()?{
return?value;
}
public?void?setValue(double?value)?{
this.value?=?value;
}
public?String?getName()?{
return?name;
}
public?void?setName(String?name)?{
this.name?=?name;
}
public?int?getNo()?{
return?no;
}
public?void?setNo(int?no)?{
this.no?=?no;
}
}
class?BookList?{
private?ListBook?bookList;
public?BookList()?{
bookList?=?readXML();
}
public?long?getCount()?{
return?bookList.size();
}
public?ListBook?getBookList()?{
return?bookList;
}
public?void?setBookList(ListBook?bookList)?{
this.bookList?=?bookList;
}
public?void?add(Book?book)?{
bookList.add(book);
}
public?boolean?delete(String?name)?{
Book?book?=?query(name);
return?bookList.remove(book);
}
public?void?update(Book?bookBefore,?Book?bookAfter)?{
bookList.remove(bookBefore);
add(bookAfter);
}
public?Book?query(String?name)?{
Book?temp?=?null;
for?(Book?book?:?bookList)?{
if?(book.getName().equals(name))?{
temp?=?book;
}
}
return?temp;
}
public?synchronized?void?writeXmlDocument(Book?book)?{
try?{
File?file?=?new?File("D:\\book.xml");
Document?document?=?null;
Element?root?=?null;
if?(!file.exists())?{
//?新建student.xml文件并新增內(nèi)容
document?=?DocumentHelper.createDocument();
root?=?document.addElement("Books");//添加根節(jié)點(diǎn)???
}?else?{
SAXReader?saxReader?=?new?SAXReader();
document?=?saxReader.read(file);
root?=?document.getRootElement();//獲得根節(jié)點(diǎn)
}
Element?secondRoot?=?root.addElement("Book");//二級節(jié)點(diǎn)???
//為二級節(jié)點(diǎn)添加屬性，屬性值為對應(yīng)屬性的值???
secondRoot.addElement("no").setText(book.getNo()?+?"");
secondRoot.addElement("name").setText(book.getName()?+?"");
secondRoot.addElement("value").setText(book.getValue()?+?"");
OutputFormat?format?=?OutputFormat.createPrettyPrint();
format.setEncoding("GBK");
XMLWriter?writer?=?new?XMLWriter(new?FileOutputStream("D:\\book.xml"),?format);
writer.write(document);
writer.close();
document.clearContent();
}?catch?(Exception?e)?{
e.printStackTrace();
}
}
public?synchronized?ListBook?readXML()?{
ListBook?list?=?new?ArrayListBook();//創(chuàng)建list集合???
File?file?=?null;
try?{
file?=?new?File("D:\\book.xml");//讀取文件???
if?(file.exists())?{
SAXReader?saxReader?=?new?SAXReader();
Document?document?=?saxReader.read(file);
List?nodeList?=?document.selectNodes("Books/Book");
for?(int?i?=?0;?i??nodeList.size();?i++)?{
Element?el?=?(Element)?nodeList.get(i);
Book?book?=?new?Book();
book.setNo(Integer.parseInt(el.elementText("no")));
book.setName(el.elementText("name"));
book.setValue(Double.parseDouble(el.elementText("value")));
list.add(book);
}
}
}?catch?(Exception?e)?{
e.printStackTrace();
}
return?list;
}
}
class?Test?{
public?static?void?main(String?args[])?{
BookList?bl?=?new?BookList();
boolean?bBreak?=?true;
while?(bBreak)?{
System.out.println("請輸入操作代碼:");
System.out.println("1：添加?2：刪除?3：修改?4：查詢?5:書籍統(tǒng)計(jì)?6：退出");
Scanner?sc?=?new?Scanner(System.in);
int?code?=?sc.nextInt();
if?(code?==?1)?{
System.out.println("請輸入編號");
int?no?=?sc.nextInt();
System.out.println("請輸入書名");
String?name?=?sc.next();
System.out.println("請輸入售價(jià)");
double?value?=?sc.nextDouble();
Book?book?=?new?Book(no,?name,?value);
bl.add(book);
bl.writeXmlDocument(book);
}?else?if?(code?==?2)?{
System.out.println("請輸入要刪除的書籍名");
String?name?=?sc.next();
if?(bl.delete(name))?{
System.out.println("刪除成功");
}?else?{
System.out.println("書籍不存在");
}
}?else?if?(code?==?3)?{
System.out.println("請輸入要修改的書籍名");
String?name?=?sc.next();
Book?bookBefore?=?bl.query(name);
System.out.println("請輸入新的編號");
int?newNo?=?sc.nextInt();
System.out.println("請輸入新的書名");
String?newName?=?sc.next();
System.out.println("請輸入新的售價(jià)");
double?value?=?sc.nextDouble();
Book?bookAfter?=?new?Book(newNo,?newName,?value);
bl.update(bookBefore,?bookAfter);
}?else?if?(code?==?4)?{
System.out.println("請輸入要查詢的書籍名");
String?name?=?sc.next();
Book?book?=?bl.query(name);
System.out.println("編號："?+?book.getNo()?+?"?書名："?+?book.getName()?+?"?售價(jià)："?+?book.getValue());
}?else?if?(code?==?5)?{
ListBook?list?=?bl.getBookList();
System.out.println("總書籍?dāng)?shù)："?+?bl.getCount());
for?(Book?book?:?list)?{
System.out.println("編號："?+?book.getNo()?+?"?書名："?+?book.getName()?+?"?售價(jià)："?+?book.getValue());
}
}?else?if?(code?==?6)?{
bBreak?=?false;
}
}
}
}
jar 包 ?dom4j.jar ?jaxen-1.1.4.jar
首先這個(gè)問題涉及到三個(gè)對象和一個(gè)動作，即圖書對象，學(xué)生對象和借書信息的對象，和完成“借書”的動作，圖書對象又可以包含圖書編號，書名，作者，出版社，出版日期等等，學(xué)生對象包含學(xué)生編號，姓名，性別，班級，系別等等。借書信息對象包含圖書編號，學(xué)生編號，借書時(shí)間，借書數(shù)目等等
寫好這三個(gè)類，然后分別new一個(gè)圖書和學(xué)生的對象實(shí)例，
接著寫一個(gè)借書動作過程的方法，將圖書對象和學(xué)生對象的屬性保存到借書信息的對象中....代碼略
eess:跪求運(yùn)用java實(shí)現(xiàn)圖書借閱系統(tǒng)的設(shè)計(jì)源代碼
為獲取幫助，你需要告訴我們合法的電子郵件地址*
您還能借助baiduhi聯(lián)系我們或qq:六伍柒幺伍六幺伍
('幺'讀
yao
一聲)
針對本題目
我們能提供一套與需求相匹配的源代碼
es:\bd451e98b28557d0a0ef65c37d6877a8
eess:跪求運(yùn)用java實(shí)現(xiàn)圖書借閱系統(tǒng)的設(shè)計(jì)源代碼
交易提醒:預(yù)付訂金是陷阱
#includestdio.h #includestring.h #includeconio.h #includestdlib.h #includectype.h #define STACK_INIT_SIZE 10 #define OK 1 #define TRUE 1 #define FALSE 0 #define ERROR 0 struct student /*定義學(xué)生類型，用于存放借出的書籍*/ { int carnum; char lendbook[10]; }student[1000]; struct employ /*定義職工類型*/ { int employnum; char employname[15]; int employage; char employsex[2]; char employleve[10]; long int employtage; }employ[50]; struct book /*定義書的類型*/ { int booknum; char bookname[10]; char bookcreat[10]; int turefalse; /*用于借書和還書模塊判斷一本書是否借出的條件*/ }book[1000]; struct car /*借書卡的數(shù)據(jù)類型*/ { int carnum; char studentname[10]; int studentclass; }car[100]; huanbook() /*還書函數(shù)*/ { FILE *fp,*fp2; /*定義兩個(gè)文件指針，fp2用于修改數(shù)據(jù)時(shí)設(shè)立臨時(shí)文件用，防止數(shù)據(jù)遭破壞*/ int i,n; int carnum; char lendbook[10]; printf("請你輸入你的卡號\n"); scanf("%d",carnum); fp=fopen("car.txt","r"); /*讀取卡號記錄*/ for(i=0;fread(car[i],sizeof(struct car),1,fp)!=0;i++) /*for循環(huán)判斷卡號是否存在*/ { if(car[i].carnum==carnum) /*卡號存在，進(jìn)入下一循環(huán)*/ { n=i; fclose(fp); printf("請輸入你要還的書的名字\n"); scanf("%s",lendbook); fp=fopen("record.txt","r"); for(i=0;fread(student[i],sizeof(struct student),1,fp)!=0;i++) /*判斷是否借閱了輸入的書*/ { if(strcmp(student[i].lendbook,lendbook)==0) /*借閱了該書，進(jìn)入下一循環(huán)，否則出錯顯示*/ { fclose(fp); fp=fopen("record.txt","r"); fp2=fopen("bookl.txt","w"); for(i=0;fread(student[i],sizeof(struct student),1,fp)!=0;i++) { if(strcmp(student[i].lendbook,lendbook)==0) { continue; /*刪除還掉的書的借書記錄*/ } fwrite(student[i],sizeof(struct student),1,fp2); /*寫入原來沒還的書的記錄*/ } fclose(fp); fclose(fp2); fp=fopen("record.txt","w"); fp2=fopen("bookl.txt","r"); for(i=0;fread(student[i],sizeof(struct student),1,fp2)!=0;i++) { fwrite(student[i],sizeof(struct student),1,fp); /*將借書記錄信息寫回*/ } fclose(fp); fclose(fp2); fopen("bookl.txt","w"); /*清臨時(shí)文件的記錄*/ fclose(fp2); fp=fopen("book.txt","r"); fp2=fopen("bookl.txt","w"); for(i=0;fread(book[i],sizeof(struct book),1,fp)!=0;i++) /*將書的記錄寫入臨時(shí)文件，防止因?yàn)樾薷男畔⑵茐囊郧暗挠涗?/ { if(i==n) { book[i].turefalse=1; fwrite(book[i],sizeof(struct book),1,fp2); /*將還的書的原來狀態(tài)設(shè)為無人借閱的*/ continue; } fwrite(book[i],sizeof(struct book),1,fp2); } fclose(fp); fclose(fp2); fp=fopen("book.txt","w"); fp2=fopen("bookl.txt","r"); for(i=0;fread(book[i],sizeof(struct book),1,fp2)!=0;i++) { fwrite(book[i],sizeof(struct book),1,fp); /*將臨時(shí)文件寫回*/ } fclose(fp); fclose(fp2); fopen("bookl.txt","w"); /*清臨時(shí)文件*/ fclose(fp2); printf("還書完畢，按任意鍵返回\n"); getch(); return 1; } } printf("你沒有借這樣的書，任意鍵返回\n"); /*出錯提示*/ fclose(fp); getch(); return 0; } } printf("系統(tǒng)沒這樣的卡，和管理員聯(lián)系,按任意鍵返回\n"); /*出錯提示*/ fclose(fp); getch(); } findbook() { FILE *fp; char bookname[10]; int ture,i; fp=fopen("book.txt","r"); printf("請輸入你要查找的書名\n"); scanf("%s",bookname); for(i=0;fread(book[i],sizeof(struct book),1,fp)!=0;i++) { if(strcmp(bookname,book[i].bookname)==0) { if(book[i].turefalse==1) { printf("這本書的詳細(xì)資料是：%d %s %s 此書現(xiàn)在無人借閱\n按任意鍵返回\n",book[i].booknum,book[i].bookname,book[i].bookcreat); } else {printf("這本書已經(jīng)有人借出\n");fclose(fp);return 0;} fclose(fp); return FALSE; } } printf("沒有你要查詢的書籍\n"); fclose(fp); return FALSE; } findbook1() { FILE *fp; char bookcreat[10]; int ture,i; fp=fopen("book.txt","r"); printf("請輸入你要查找的作者名\n"); scanf("%s",bookcreat); for(i=0;fread(book[i],sizeof(struct book),1,fp)!=0;i++) { if(strcmp(bookcreat,book[i].bookcreat)==0) { if(book[i].turefalse==1) { printf("這本書的詳細(xì)資料是：%d %s %s 此書現(xiàn)在無人借閱\n按任意鍵返回\n",book[i].booknum,book[i].bookname,book[i].bookcreat); } else {printf("這本書已經(jīng)有人借出\n");fclose(fp);return 0;} fclose(fp); return FALSE; } } printf("沒有你要查詢的書籍\n"); fclose(fp); return FALSE; } lendcount() { FILE *fp; int i,n=0; fp=fopen("record.txt","r"); for(i=0;fread(student[i],sizeof(struct student),1,fp)!=0;i++) { printf("卡號：%d 借出的書籍：%s \n",student[i].carnum,student[i].lendbook); n=n+1; } fclose(fp); printf("目前共有%d本書借出\n",n); printf("按任意鍵\n"); getch(); return n; } chabook() { char ch5; do { printf("---------------歡迎進(jìn)入圖書查詢系統(tǒng)！--------------\n"); printf(" 1：按書名查找\n"); printf(" 2：按作者查找\n"); printf(" 0：返回\n"); printf("請輸入0--2,其他輸入非法！\n"); scanf("%s",ch5); switch(ch5) { case '1':findbook();getch();break; case '2':findbook1();getch();break; case '0':break; default:printf("無此操作\n");getch();break; } }while(ch5!='0'); return FALSE; } lendbook() { FILE *fp,*fp2; int i,n; int carnum; printf("請你輸入你的卡號\n"); scanf("%d",carnum); fp=fopen("car.txt","r"); for(i=0;fread(car[i],sizeof(struct car),1,fp)!=0;i++) { if(car[i].carnum==carnum) { n=i; fclose(fp); printf("請輸入你要借閱的書的名字\n"); scanf("%s",student[n].lendbook); fp=fopen("book.txt","r"); for(i=0;fread(book[i],sizeof(struct book),1,fp)!=0;i++) { if(strcmp(book[i].bookname,student[n].lendbook)==0) { if(book[i].turefalse==0) {printf("對不起，此書有人借出，請借其他書\n");fclose(fp);getch();return;} else fclose(fp); fp=fopen("record.txt","a+"); student[n].carnum=carnum; fwrite(student[n],sizeof(struct student),1,fp); fclose(fp); fp=fopen("book.txt","r"); fp2=fopen("bookl.txt","w"); for(i=0;fread(book[i],sizeof(struct book),1,fp)!=0;i++) { if(strcmp(book[i].bookname,student[n].lendbook)==0) { book[i].turefalse=0; fwrite(book[i],sizeof(struct book),1,fp2); continue; } fwrite(book[i],sizeof(struct book),1,fp2); } fclose(fp); fclose(fp2); fp=fopen("book.txt","w"); fp2=fopen("bookl.txt","r"); for(i=0;fread(book[i],sizeof(struct book),1,fp2)!=0;i++) { fwrite(book[i],sizeof(struct book),1,fp); } fclose(fp); fclose(fp2); fopen("bookl.txt","w"); fclose(fp2); printf("借書完畢，按任意鍵返回\n"); getch(); return; } } printf("不存在這樣的書，任意鍵返回\n"); fclose(fp); getch(); return; } } printf("你的卡號不存在，請申請新卡,按任意鍵返回\n"); fclose(fp); getch(); } carcount() { FILE *fp; int i,n=0; fp=fopen("car.txt","r"); for(i=0;fread(car[i],sizeof(struct car),1,fp)!=0;i++) { printf("第%d張卡卡號：%d 姓名：%s 班級：%d\n",i+1,car[i].carnum,car[i].studentname,car[i].studentclass); n=n+1; } fclose(fp); printf("目前共有%d本書\n",n); printf("按任意鍵\n"); getch(); } delcar() { FILE *fp,*fp2; int i; int carnum; char choice; fp=fopen("car.txt","r"); fp2=fopen("bookl.txt","w"); printf("請輸入你要刪除的卡號\n"); printf("如果你輸入的卡號存在，系統(tǒng)自動刪除該信息！如果不存在，系統(tǒng)不做任何改動\n"); scanf("%d",carnum); for(i=0;fread(car[i],sizeof(struct car),1,fp)!=0;i++) { if(car[i].carnum!=carnum) { fwrite(car[i],sizeof(struct car),1,fp2); } } fclose(fp); fclose(fp2); printf("是否真的要刪除該卡？刪除后該書籍的所有信息將無法恢復(fù)《Y/N》\n"); scanf("%s",choice); if(choice=='y'||choice=='Y') { fp=fopen("car.txt","w"); fp2=fopen("bookl.txt","r"); for(i=0;fread(car[i],sizeof(struct car),1,fp2)!=0;i++) { fwrite(car[i],sizeof(struct car),1,fp); } fclose(fp); fclose(fp2); fp2=fopen("bookl.txt","w"); fclose(fp2); printf("按任意鍵返回\n"); getch(); return; } else { printf("按任意鍵返回\n"); getch(); return; } } addcar() { FILE *fp; int i=0; fp=fopen("car.txt","a+"); printf("請你輸入卡號\n"); scanf("%d",car[i].carnum); printf("請你輸入學(xué)生姓名\n"); scanf("%s",car[i].studentname); printf("請你輸入班級\n"); scanf("%d",car[i].studentclass); fwrite(car[i],sizeof(struct car),1,fp); fclose(fp); printf("輸入完畢，任意鍵返回\n"); getch(); }
---------------------------------------------------
給你修改了三個(gè)地方：
1.borrowBooks方法中，將System.out.println("你要借嗎？"); 改為：
System.out.println("你要借嗎？輸入1表示借，其他數(shù)字表示不借。");
保證輸入的時(shí)候輸入的數(shù)字，否則會報(bào)出異常。
2.borrowBooks方法中，將self[score] = all[9]; 改為：self[score] = all[i];
如果是all[9]，那么就始終是最后一本書籍信息了。
3.have方法中，你是想將所借的書籍信息都打印出來。修改的比較多，下面注釋代碼是原來的。
void have(Books[] self) {
// for (int i = 0; i 2; i++) {
// self[i].showBookInfo();
// }
for (int i = 0; i 3; i++) {
if(self[i]!=null)
self[i].showBookInfo();
}
}
****************** 附上所有代碼：*************************
import java.util.Scanner;
public class TestBook {
public static void main(String[] args) {
Books all[] = new Books[10];
Books self[] = new Books[3];
all[0] = new Books("java", 1, "12345", "tom", 34.0f, "人民出版社");
all[1] = new Books("c", 2, "12346", "tnn", 31.0f, "人民出版社");
all[2] = new Books("c++", 3, "12445", "mm", 35.0f, "人民出版社");
all[3] = new Books("c#", 4, "12365", "tt", 38.0f, "人民出版社");
all[4] = new Books("j2se", 5, "13345", "tosm", 31.1f, "人民出版社");
all[5] = new Books("j2ee", 6, "18345", "ttm", 32.0f, "人民出版社");
all[6] = new Books("jsp", 7, "12335", "cc", 33.0f, "人民出版社");
all[7] = new Books("net", 8, "12341", "bb", 36.0f, "人民出版社");
all[8] = new Books("ip", 9, "12343", "aa", 37.0f, "人民出版社");
all[9] = new Books("tcp", 10, "22345", "jj", 39.0f, "人民出版社");
Readers r = new Readers("xiaoming", 101, "1", 3);
r.searchAllBooks(all);
r.borrowBooks(all, self);
r.have(self);
r.give(all, self);
}
}
class Readers {
Scanner scan = new Scanner(System.in);
String names;
int nums;
String classes;
int grade;
int score = 0;
// Books self[]=new Books[3];
Readers(String n, int u, String c, int g) {
names = n;
nums = u;
classes = c;
grade = g;
}
void searchAllBooks(Books[] all) {// 查書
for (int i = 0; i 10; i++)
all[i].showBookInfo();
// self[score]=all[0];
}
void give(Books[] all, Books[] self) {// 還書
System.out.println("請輸入您要還的書的書號");
int n = scan.nextInt();
for (int i = 0; i 10; i++) {
if (n == all[i].num) {
for (int j = 0; j 3; j++) {
if (self[j] == all[i]) {
self[j] = null;
System.out.println("還書成功");
}
}
}
}
}
void have(Books[] self) {
// for (int i = 0; i 2; i++) {
// self[i].showBookInfo();
// }
for (int i = 0; i 3; i++) {
if(self[i]!=null)
self[i].showBookInfo();
}
}
void giveMoney() {
}
void borrowBooks(Books[] all, Books[] self) {
System.out.println("請輸入您要查找的書名：");
String n = scan.next();
int i;
for (i = 0; i 10; i++) {
if (n.equals(all[i].name)) {
all[i].showBookInfo();
break;
}
}
//System.out.println("你要借嗎？");
System.out.println("你要借嗎？輸入1表示借，其他數(shù)字表示不借。");
int j;
j = scan.nextInt();
if (j == 1) {
System.out.println("借閱成功");
//self[score] = all[9];
self[score] = all[i];
score += 1;
}
if (score 4) {
System.out.println("您還可以借閱" + (3 - score) + "本");
} else {
System.out.println("對不起，一個(gè)人只能借3本");
}
}
}
class Books {
String name;
int num;
String ISBN;
String writer;
float price;
String publisher;
Books(String n, int u, String i, String w, float p, String l) {
name = n;
num = u;
ISBN = i;
writer = w;
price = p;
publisher = l;
}
void showBookInfo() {
System.out.println("**************************");
System.out.println("書名：" + name);
System.out.println("索書號：" + num);
System.out.println("ISBN號：" + ISBN);
System.out.println("價(jià)格：" + price);
System.out.println("出版社：" + publisher);
System.out.println("**************************");
}
}
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重慶分公司
重慶分公司
