bam銀行賬戶管理系統(tǒng)java類

-z.BAM銀行賬戶管理系統(tǒng)〔ATM管理系統(tǒng)〕本系統(tǒng)采用JAVA語(yǔ)言并在eclipse環(huán)境下編寫測(cè)試完成，涉及類的概念，以及面向?qū)ο蟮膸状筇匦浴怖^承，封裝，多態(tài)，抽象〕，也有異常處理機(jī)制，根本可以滿足大多數(shù)BAM系統(tǒng)的相關(guān)實(shí)現(xiàn)，且代碼標(biāo)注大量注釋，讀者可以很輕松地理解相關(guān)邏輯，大家可以開心參考。系統(tǒng)簡(jiǎn)介：1、JAVA類的面相對(duì)象的應(yīng)用，擁有異常處理機(jī)制，不會(huì)因?yàn)檩斎脲e(cuò)誤而導(dǎo)致程序崩潰2、主要有5個(gè)類，即①Account〔賬戶類〕②SaveAccount〔儲(chǔ)蓄賬戶類〕：不能透支③CreditAccount〔信用賬戶類〕：可以透支④Bank〔銀行類〕⑤ATM〔ATM類〕 類的具體屬性級(jí)行為見代碼 3、各個(gè)類之間的相互關(guān)系，涉及繼承、封裝、多態(tài)、抽象，在多態(tài)中又涉及重載和重寫，請(qǐng)讀者注意相關(guān)聯(lián)系〔關(guān)注注釋〕 4、可以實(shí)現(xiàn)數(shù)據(jù)保存功能，數(shù)據(jù)將保存在文件中〔即當(dāng)你注冊(cè)了一個(gè)賬戶，下次再登陸系統(tǒng)時(shí)，可以實(shí)現(xiàn)與上次最后的操作相銜接〕 5、賬戶號(hào)自動(dòng)生成，比擬符合現(xiàn)實(shí) 6、主要功能有：1.開戶 2.查詢賬戶余額 3.存款 4.取款 5.轉(zhuǎn)賬〔一個(gè)賬戶到另一個(gè)賬戶〕等……7、運(yùn)行時(shí)界面簡(jiǎn)示 1.初始界面〔賬戶登錄〕 2.賬戶登錄后界面考前須知：1、本系統(tǒng)采用的編程環(huán)境是JDK1.7，jer7。所以，運(yùn)行代碼需要保持電腦上所裝的JDK為1.7以上版本，如有報(bào)錯(cuò)，只需換個(gè)高一點(diǎn)的版本即可。注意：第一次裝JDK，要配置環(huán)境變量〔請(qǐng)查閱相關(guān)資料，比擬簡(jiǎn)單〕2、本系統(tǒng)代碼涉及到包，所以如果報(bào)名不一致就會(huì)報(bào)錯(cuò)，解決法：修改一下包名即可3、建議把各個(gè)類寫在同一個(gè)包下面，且每一個(gè)類單獨(dú)寫一個(gè)java文件，如下列圖： 4、在運(yùn)行程序前，需要在工程下面新建一個(gè)account.t*t〔用來(lái)保存數(shù)據(jù)〕文件〔如上圖〕，并在其中寫入至少一個(gè)賬戶信息，〔如下列圖，其中每項(xiàng)代表的意思，請(qǐng)讀者參照代碼的注釋〕，否則在初始化的時(shí)候會(huì)因?yàn)檎也坏劫~戶信息，從而產(chǎn)生異常。系統(tǒng)源碼：Account類package.q*;//包名/***賬戶類:包含兩種賬戶類型-->1.儲(chǔ)蓄賬戶2.信用賬戶*/publicabstractclassAccount{ //屬性protectedlongid;protectedStringpassword;protectedStringname;protectedStringpersonId;protectedintaccountType;protecteddoublebalance; //構(gòu)造法publicAccount(){super(); }publicAccount(longid,Stringpassword,Stringname,StringpersonId,intaccoutType,doublebalance){super();this.id=id;this.password=password;=name;this.personId=personId;this.accountType=accountType;this.balance=balance; } //get***,set***法publiclonggetId(){returnid; }publicvoidsetId(longid){this.id=id; }publicStringgetPassword(){returnpassword; }publicvoidsetPassword(Stringpassword){this.password=password; }publicStringgetName(){returnname; }publicvoidsetName(Stringname){=name; }publicStringgetPersonId(){returnpersonId; }publicvoidsetPersonId(StringpersonId){this.personId=personId; }publicintgetAccountType(){returnaccountType; }publicvoidsetAccountType(intaccountType){this.accountType=accountType; }publicdoublegetBalance(){returnbalance; }publicvoidsetBalance(doublebalance){this.balance=balance; } /** *存款 */publicvoiddeposit(doublemoney){ balance+=money; } /** *取款〔取款式由賬戶類型決定，所以設(shè)為抽象法，相應(yīng)的Account類應(yīng)設(shè)為抽象類〕 */publicabstractvoidwithdraw(doublemoney);}SavingAccount類package.q*;/***儲(chǔ)蓄賬戶類*/publicclassSavingAccounte*tendsAccount{ //構(gòu)造函數(shù)publicSavingAccount(){super(); }publicSavingAccount(longid,Stringpassword,Stringname, StringpersonId,intaccountType,doublebalance){super(id,password,name,personId,accountType,balance); } //對(duì)父類的withdraw()實(shí)現(xiàn)publicvoidwithdraw(doublemoney){if(balance<money){ System.out.println("對(duì)不起，賬戶余額缺乏！"); }else { balance-=money; } }}CresitAccount類package.q*;/***信用賬戶類，增加一個(gè)信用額度ceiling屬性*/publicclassCreditAccounte*tendsAccount{privateintceiling; //構(gòu)造函數(shù)publicCreditAccount(){super(); }publicCreditAccount(longid,Stringpassword,Stringname, StringpersonId,intaccountType,doublebalance,intceiling){super(id,password,name,personId,accountType,balance);this.ceiling=ceiling; } //get***,set***法publicintgetCeiling(){returnceiling; }publicvoidsetCeiling(intceiling){this.ceiling=ceiling; } //實(shí)現(xiàn)父類的withdraw()publicvoidwithdraw(doublemoney){if((balance+ceiling)<money){ System.out.println("對(duì)不起，已超出您的信用額度！"); }else { balance-=money; } }}Bank類package.q*;importjava.io.BufferedReader;importjava.io.BufferedWriter;importjava.io.File;importjava.io.FileNotFoundE*ception;importjava.io.FileReader;importjava.io.FileWriter;importjava.io.IOE*ception;importjava.util.Properties;/***Bank類*編寫B(tài)ank類,屬性:1.當(dāng)前所有的賬戶對(duì)象的集合,存放在數(shù)組中2.當(dāng)前賬戶數(shù)量法:1.用戶開戶,需要的參數(shù):id,密碼,密碼確認(rèn),姓名,身份證,賬戶類型,返回新創(chuàng)立的Account對(duì)象的賬號(hào),提示:用s1.equals(s2)可以比擬s1,s2兩個(gè)字符串的值是否相等.賬戶類型是一個(gè)整數(shù),為0的時(shí)候表示儲(chǔ)蓄賬戶,為1的時(shí)候表示信用賬戶2.用戶登錄,參數(shù):id,密碼返回登錄賬戶的賬號(hào)3.用戶存款,參數(shù):id,存款數(shù)額,返回void4.用戶取款,參數(shù):id,取款數(shù)額,返回void5.查詢余額,參數(shù):id，返回該賬戶的余額double用戶會(huì)通過(guò)調(diào)用Bank對(duì)象以上的法來(lái)操作自己的賬戶,請(qǐng)分析各個(gè)法需要的參數(shù)*/publicclassBank{ privateAccount[]accounts=newAccount[20]; privateintnumber;//賬戶數(shù)目 privateintid=1001;//確定銀行賬號(hào)從1001開場(chǎng)生成，即第一個(gè)賬戶的賬號(hào)是1001 //構(gòu)造函數(shù) publicBank(){ accounts=newAccount[20];//以后缺乏時(shí)擴(kuò)容。 number=0; BufferedReaderbufReader=null; Propertiesprops=System.getProperties(); Stringpath=props.getProperty("user.dir"); try{ bufReader=newBufferedReader(newFileReader(newFile(path,"account.t*t"))); Strings=bufReader.readLine(); while(s!=null){ String[]str=s.split(","); if(str[4].equals("0")) { AccountsavingAcc=newSavingAccount(Long.parseLong(str[0]), str[1].toString(),str[2].toString(), str[3].toString(),Integer.parseInt(str[4]), Double.parseDouble(str[5])); accounts[number]=savingAcc; } else { AccountcreditAcc=newCreditAccount(Long.parseLong(str[0]), str[1].toString(),str[2].toString(), str[3].toString(),Integer.parseInt(str[4]), Double.parseDouble(str[5]),5000); accounts[number]=creditAcc; } number++; id++; s=bufReader.readLine(); } }catch(NumberFormatE*ceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); }catch(FileNotFoundE*ceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); }catch(IOE*ceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); }finally{ try{ if(bufReader!=null) { bufReader.close(); } }catch(IOE*ceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); } } } //get***,set*** publicAccount[]getAccounts(){ returnaccounts; } publicvoidsetAccounts(Account[]accounts){ this.accounts=accounts; } publicintgetNumber(){ returnnumber; } publicvoidsetNumber(intnumber){ this.number=number; } publicintgetId(){ returnid; } publicvoidsetId(intid){ this.id=id; } /** *開戶 */ publicAccountopenAccount(Stringpasswd1,Stringpasswd2,Stringname, StringpersonId,inttype){ //創(chuàng)立一個(gè)新賬戶 Accountaccount=null; //判斷兩次密碼是否一致 if(passwd1.equals(passwd2)){ //假設(shè)一致，再判斷賬戶類型〔根據(jù)type的值〕 if(type==1){ //可令開場(chǎng)余額為10,信用額度為5000 account=newCreditAccount(id,passwd1,name,personId,type,10,5000); } else { account=newSavingAccount(id,passwd1,name,personId,type,10); } //將賬戶存入賬戶數(shù)組accounts[]中 //判斷是否超出存儲(chǔ)空間 if(number>=accounts.length) { //擴(kuò)容 Account[]newAccounts=newAccount[accounts.length*2]; //copy原來(lái)的相關(guān)數(shù)據(jù) System.arraycopy(accounts,0,newAccounts,0,accounts.length); //將newAccounts[]賦給accounts[] accounts=newAccounts; accounts[number]=account; } else { accounts[number]=account; } System.out.println("開戶成功?。?！賬戶信息見下"); System.out.println("您的卡號(hào)為："+id+"\n"+"您的密碼為："+passwd1+"\n"+"您的戶名為："+name+"\n" +"您的身份證號(hào)為："+personId+"\n"+"您的賬戶類型為："+type+"\n"); account.accountType=type; number++; id++; returnaccount;//此時(shí)開戶成功 } else { System.out.println("對(duì)不起！您兩次密碼輸入不匹配，開戶失敗?。?！"); returnnull;//此時(shí)開戶失敗 } } /** *保存數(shù)據(jù) */ publicvoidsaveAccountDate(){ BufferedWriterbufWriter=null; try{Propertiesprops=System.getProperties(); Stringpath=props.getProperty("user.dir"); bufWriter=newBufferedWriter(newFileWriter(newFile(path,"account.t*t"))); for(inti=0;i<accounts.length;i++) { //假設(shè)存在賬戶 if(accounts[i]!=null) { //寫入賬戶信息到account.t*t bufWriter.write(accounts[i].id+","); bufWriter.write(accounts[i].getPassword()+","); bufWriter.write(accounts[i].getName()+","); bufWriter.write(accounts[i].getPersonId()+","); bufWriter.write(accounts[i].getAccountType()+","); bufWriter.write(Double.toString(accounts[i].getBalance())); bufWriter.newLine(); } else { break; } } bufWriter.flush();//清空緩存中的容 }catch(IOE*ceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); }finally{ try{ if(bufWriter!=null){ bufWriter.close(); } }catch(IOE*ceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); } } } /** *登錄驗(yàn)證 */ publicAccountverifyAccount(longid,Stringpassword){ Accountaccount=null; for(inti=0;i<accounts.length;i++) { //假設(shè)存在賬戶 if(accounts[i]!=null) { //驗(yàn)證id號(hào)和password if(id==accounts[i].getId()&&password.equals(accounts[i].getPassword())) { account=accounts[i]; break; } } else { break; } } returnaccount; } /** *轉(zhuǎn)賬驗(yàn)證〔法的重載〕 */ publicAccountverifyAccount(longid){ Accountaccount=null; for(inti=0;i<accounts.length;i++) { //假設(shè)存在賬戶 if(accounts[i]!=null) { //驗(yàn)證id號(hào)和password if(id==accounts[i].getId()) { account=accounts[i]; break; } } else { break; } } returnaccount; } /** *轉(zhuǎn)賬 */ publicvoidtransferAccount(Accountaccount1,Accountaccount2,doublemoney){ account1.withdraw(money); account2.deposit(money); } /** *存款 */ publicvoiddeposit(Accountaccount,doublemoney){ account.deposit(money); } /** *取款 */ publicvoidwithdraw(Accountaccount,doublemoney){ account.withdraw(money); }}ATM類package.q*;importjava.io.BufferedReader;importjava.io.BufferedWriter;importjava.io.File;importjava.io.FileReader;importjava.io.FileWriter;importjava.util.Properties;importjava.util.Scanner;/***ATM類，提供用戶界面操作*/publicclassATM{ //屬性 privateBankbank; //構(gòu)造函數(shù) publicATM(){ bank=newBank(); } //main法 publicstaticvoidmain(String[]args){ ATMatm=newATM();//實(shí)例化ATM Bankbank=atm.bank; //標(biāo)號(hào)，判斷是否退出一級(jí)菜單 booleanfirstFlag=true; while(firstFlag) { //一級(jí)菜單 System.out.println("******歡送使用***銀行模擬ATM系統(tǒng)，請(qǐng)按如下步驟操作******"); System.out.println(" *1.用已有賬戶登錄"); System.out.println(" *2.沒(méi)有賬戶，開戶"); System.out.println(" *3.退出"); Scannerscanner=newScanner(System.in); System.out.print("請(qǐng)選擇："); try{ intchoice1=scanner.ne*tInt(); switch(choice1) { case1: scanner=newScanner(System.in); System.out.print("請(qǐng)輸入銀行卡號(hào)："); longid=scanner.ne*tInt(); scanner=newScanner(System.in); System.out.print("請(qǐng)輸入銀行密碼："); Stringpassword=scanner.ne*t(); Accountaccount=bank.verifyAccount(id,password); if(account!=null) { //標(biāo)號(hào)，判斷是否退出二級(jí)菜單 booleansecondFlag=true; while(secondFlag) { //二級(jí)菜單 System.out.println("******歡送使用***銀行模擬ATM系統(tǒng)，請(qǐng)按如下步驟操作******"); System.out.println("*1.查詢賬戶余額"); System.out.println("*2.存款"); System.out.println("*3.取款"); System.out.println("*4.轉(zhuǎn)賬"); System.out.println("*5.退卡"); scanner=newScanner(System.in); System.out.print("請(qǐng)選擇："); try{ intchoice2=scanner.ne*tInt(); switch(choice2) { case1: System.out.println("您賬戶的當(dāng)前余額為："+account.getBalance()); break; case2: scanner=newScanner(System.in); System.out.print("請(qǐng)輸入您的存款金額："); doublemoney1=scanner.ne*tDouble(); bank.deposit(account,money1); break; case3: scanner=newScanner(System.in); System.out.print("請(qǐng)輸入您的取款金額："); doublemoney2=scanner.ne*tDouble(); bank.withdraw(account,money2); break; case4: scanner=newScanner(System.in); System.out.print("請(qǐng)輸入您要轉(zhuǎn)入賬戶的卡號(hào)："); longid2=scanner.ne*tLong(); Accountaccount2=bank.verifyAccount(id2); if(account2!=null) { scanner=newScanner(System.in); System.out.print("請(qǐng)輸入您要轉(zhuǎn)入賬戶的金額："); doublemoney=scanner.ne*tLong(); if(money<=account.balance) { bank.transferAccount(account,account2,money); System.out.println("轉(zhuǎn)賬成功！?。?); } else { System.out.println("抱歉，您賬戶沒(méi)有足夠的金額！請(qǐng)查看后重新選擇輸入！"); } } else {