前言介紹：
最近很多同學(xué)找我?guī)兔ψ鲆恍?span id="alq3hrk" class="wpcom_tag_link">課程設(shè)計(jì)或Web前端大作業(yè)、其中控制臺(tái)項(xiàng)目應(yīng)該是初學(xué)者必須經(jīng)歷的一個(gè)過(guò)程、作為java初學(xué)者這個(gè)控制臺(tái)版本的模擬ATM銀行管理系統(tǒng)十分合適、用到的技術(shù)也是最簡(jiǎn)單的JavaList集合、變量的聲明、對(duì)象的創(chuàng)建、一些基本的while語(yǔ)句、switch語(yǔ)句、循環(huán)遍歷等基礎(chǔ)語(yǔ)法。一個(gè)最基礎(chǔ)版本的控制臺(tái)模擬ATM銀行管理系統(tǒng)也就是CRUD功能、 直接上完整代碼****
創(chuàng)建抽象類(lèi)Card類(lèi)
abstract class Card {int cardId; public Card() {super();}public Card(int cardId) {super();this.cardId = cardId;}public abstract String getCardId();public abstract void setCardId(int cardId); }
創(chuàng)建普通銀行類(lèi)繼承Card
public class CommonCard extends Card{public CommonCard() {super();}public CommonCard(int cardId) {super();this.cardId = cardId;}@Overridepublic String getCardId() {return “普通銀行卡卡號(hào)為：”+cardId;}@Overridepublic void setCardId(int cardId) {this.cardId = cardId;} }
創(chuàng)建普通信用卡繼承Card
package com.railway.modules.base.test;public class CreditCard extends Card{public CreditCard() {super();}public CreditCard(int cardId) {super(cardId);}@Overridepublic String getCardId() {return “信用卡卡號(hào)為：”+cardId;}@Overridepublic void setCardId(int cardId) {this.cardId = cardId;}}
創(chuàng)建普通醫(yī)?？ɡ^承Card
package com.railway.modules.base.test;public class MedicalInsuranceCard extends Card{public MedicalInsuranceCard() {super();}public MedicalInsuranceCard(int cardId) {super(cardId);}@Overridepublic String getCardId() {return “醫(yī)保卡卡號(hào)為：”+cardId;}@Overridepublic void setCardId(int cardId) {this.cardId = cardId;} }
ATM主要方法業(yè)務(wù)類(lèi)邏輯實(shí)現(xiàn)
package com.railway.modules.base.test;import java.util.Scanner;public class ATM {Scanner input = new Scanner(System.in);private User[] user=new User[100];User atm = new User();private User usr;private int accountId = 1;private Card card; public void Select() { while(true) {System.out.println(“=======ATM管理系統(tǒng)=======”);System.out.print(“1.開(kāi)戶(hù)2.登錄3.取款4.存款5.余額查詢(xún)6.修改密碼7.查看用戶(hù)信息8.退出登錄9.退出系統(tǒng)請(qǐng)選擇需要選擇的項(xiàng)目：”);switch(input.nextInt()) {case 1:setAccount();//開(kāi)戶(hù)break;case 2:usr=userLogin();//登錄break;case 3:drawMoney();//取款break;case 4:depositMoney();//存款break;case 5:showBalance();//余額查詢(xún)break;case 6:revisePassword();//修改密碼break;case 7:lookAccount();//查看用戶(hù)信息break;case 8:cancel();//退出登錄break;case 9:System.out.println(“=======================”);System.out.println(“歡迎下次登錄該系統(tǒng)！”);//退出系統(tǒng)System.exit(0);break;default:System.out.println(“=======================”);System.out.println(“輸入錯(cuò)誤！請(qǐng)重新輸入！”);break;}}} public void setAccount(){//開(kāi)戶(hù)if (usr!=null) {System.out.println(“=======================”);System.out.println(“請(qǐng)先退出上一個(gè)賬戶(hù)!”);}else{boolean x = true;while(x) {System.out.println(“=======================”);System.out.print(“1.普通銀行卡2.信用卡3.醫(yī)?？?.返回請(qǐng)選擇開(kāi)戶(hù)類(lèi)型：”);switch(input.nextInt()) {case 1:card = new CommonCard();card.setCardId(accountId);x=false;break;case 2:card = new CreditCard();card.setCardId(accountId);x=false;break;case 3:card = new MedicalInsuranceCard();card.setCardId(accountId);x=false;break;case 0:Select();default:System.out.println(“=======================”);System.out.println(“輸入錯(cuò)誤！請(qǐng)重新輸入！”);break;}} System.out.print(“請(qǐng)輸入姓名：”);String name=input.next();System.out.print(“請(qǐng)輸入性別：”);String sex=input.next();System.out.print(“請(qǐng)輸入年齡：”);String age=input.next();System.out.print(“請(qǐng)輸入身份證號(hào)：”);String ID=input.next();System.out.print(“請(qǐng)輸入銀行卡要設(shè)置的密碼：”);String password1=input.next();System.out.print(“請(qǐng)?jiān)俅屋斎朊艽a：”);String password2=input.next();if(password1.equals(password2)){user[accountId]=new User(name,sex,age,password1,ID,0,card);System.out.println(“=======================”);System.out.println(“開(kāi)戶(hù)成功！你的卡號(hào)為：”+accountId);accountId++;}else {System.out.println(“=======================”);System.out.println(“兩次密碼不同！請(qǐng)重新開(kāi)始！”);}} } public User userLogin(){//登錄if (usr!=null) {System.out.println(“=======================”);System.out.println(“請(qǐng)先退出上一個(gè)賬戶(hù)!”);return usr;}else{System.out.print(“請(qǐng)輸入卡號(hào)：”);int aId=input.nextInt();System.out.print(“請(qǐng)輸入密碼：”);String password=input.next();for(int i=0;iusr.getBalance()) {System.out.println(“=======================”);System.out.print(“取款金額大于余額，請(qǐng)重新輸入取款金額：”);blc=input.nextDouble();}while(blc<=0){System.out.println("=======================");System.out.print("取款金額錯(cuò)誤，請(qǐng)重新輸入取款金額：");blc=input.nextDouble();}usr.setBalance(usr.getBalance()-blc);System.out.println("=======================");System.out.println("取款成功！");System.out.println("賬戶(hù)余額："+usr.getBalance()); }} public void depositMoney(){//存款if(usr==null){System.out.println("=======================");System.out.println("請(qǐng)先登錄賬戶(hù)！");}else{System.out.print("請(qǐng)輸入存款金額：");double dsm=input.nextDouble();while(dsm=0;i–) {if(password.equals(usr.getPassword()))break;if(i==0) {System.out.println("三次密碼輸入錯(cuò)誤！即將退出賬戶(hù)！");cancel();Select();}System.out.println("密碼錯(cuò)誤！你還有"+i+"次機(jī)會(huì)！");System.out.print("請(qǐng)輸入原密碼：");password=input.next();}System.out.print("驗(yàn)證成功，請(qǐng)輸入新密碼：");String password1=input.next();System.out.print("請(qǐng)?jiān)俅屋斎朊艽a：");String password2=input.next();while(!password1.equals(password2)) {System.out.println("=======================");System.out.print("兩次密碼不同，請(qǐng)重新輸入新密碼：");password1=input.next();System.out.print("請(qǐng)?jiān)俅屋斎朊艽a：");password2=input.next();}usr.setPassword(password1);System.out.println("=======================");System.out.println("修改成功！");}} public void lookAccount() {//查看用戶(hù)信息if(usr==null){System.out.println("=======================");System.out.println("請(qǐng)先登錄賬戶(hù)！");}else{System.out.println("=======================");System.out.println("姓名："+usr.getName());System.out.println("性別："+usr.getSex());System.out.println(usr.getCardId());System.out.println("身份證號(hào)："+usr.getID());System.out.println("余額："+usr.getBalance());}} public void cancel() {if(usr==null){System.out.println("=======================");System.out.println("請(qǐng)先登錄賬戶(hù)！");}else{usr=null;System.out.println("=======================");System.out.println("賬戶(hù)退出成功！");}}}
main方法測(cè)試啟動(dòng)類(lèi)
public class TestATM {public static void main(String[] args) {ATM atm = new ATM();atm.Select();}}
控制臺(tái)打印：
=======ATM管理系統(tǒng)=======1.開(kāi)戶(hù)2.登錄3.取款4.存款5.余額查詢(xún)6.修改密碼7.查看用戶(hù)信息8.退出登錄9.退出系統(tǒng)請(qǐng)選擇需要選擇的項(xiàng)目：1=======================1.普通銀行卡2.信用卡3.醫(yī)?？?.返回請(qǐng)選擇開(kāi)戶(hù)類(lèi)型：1請(qǐng)輸入姓名：admin請(qǐng)輸入性別：男請(qǐng)輸入年齡：22請(qǐng)輸入身份證號(hào)：513922199555555555請(qǐng)輸入銀行卡要設(shè)置的密碼：123456請(qǐng)?jiān)俅屋斎朊艽a：123456=======================開(kāi)戶(hù)成功！你的卡號(hào)為：1=======ATM管理系統(tǒng)=======1.開(kāi)戶(hù)2.登錄3.取款4.存款5.余額查詢(xún)6.修改密碼7.查看用戶(hù)信息8.退出登錄9.退出系統(tǒng)請(qǐng)選擇需要選擇的項(xiàng)目：2請(qǐng)輸入卡號(hào)：1請(qǐng)輸入密碼：123456=======================admin，歡迎登錄！=======ATM管理系統(tǒng)=======1.開(kāi)戶(hù)2.登錄3.取款4.存款5.余額查詢(xún)6.修改密碼7.查看用戶(hù)信息8.退出登錄9.退出系統(tǒng)請(qǐng)選擇需要選擇的項(xiàng)目：
很基礎(chǔ)、 適合java初學(xué)者來(lái)進(jìn)行練習(xí)以及當(dāng)做課程作業(yè)來(lái)使用
