package com.lic;
import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;
public class demoATM {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
ArrayList<Atm> at=new ArrayList<>();
while (true){
System.out.println("注册账户 登录账户");
String a = sc.next();
at.add(xuanxiang(a,at));
}
}
public static Atm xuanxiang(String a,ArrayList<Atm> at) {
Atm atm=new Atm();
if (a.equals("注册账户")) {
atm=zhuce(at);
return atm;
} else if (a.equals("登录账户")) {
int c=denglu(at);
caozuo(c,at);
return atm;
}else System.out.println("命令错误，请重新输入");
return atm;
}
public static Atm zhuce(ArrayList<Atm> at) {
Random ra = new Random();
Scanner sc = new Scanner(System.in);
int u=1;
int o=0;
while (u!=0){
o= ra.nextInt(10) + 89;
u=0;
for (int i = 0; i < at.size(); i++) {
if (o==at.get(i).getCar()){
u++;
}
}
}
System.out.println("你的卡号是" +o);
System.out.println("请输入你的姓名");
String name = sc.next();
String mima;
while (true) {
System.out.println("请输入你的密码");
mima = sc.next();
System.out.println("请你再次输入密码");
String mi = sc.next();
if (mi.equals(mima)) {
break;
}
}
Double c = 0.0;
Atm use =new Atm();
use=(new Atm(o, name, c, mima));
System.out.println("恭喜你，注册成功");
return use;
}
public static int denglu(ArrayList<Atm> atms){
Scanner sc=new Scanner(System.in);
System.out.println("请输入账号");
int a= sc.nextInt();
System.out.println("请输入密码");
String b=sc.next();
for (int i = 0; i < atms.size(); i++) {
if (a==atms.get(i).getCar()){
// System.out.println("请输入密码");
// String b=sc.next();
if (b.equals(atms.get(i).getMima())){
System.out.println("登录成功");
return i;
}
}
}
System.out.println("登录失败");
return atms.size()+5;
}
public static int caozuo(int a,ArrayList<Atm> at){
Scanner sc=new Scanner(System.in);
if (a<at.size()){
while (true){
System.out.println("请你选择序号进行操作");
System.out.println("1.查询余额"+"\t"+"2.存钱"+"\t"+"3.取钱");
System.out.println("4.转账"+"\t"+"5.修改密码"+"\t"+"6.返回");
System.out.println("7.注销账号");
int nmb=sc.nextInt(8);
switch (nmb){
case 1:
System.out.println(at.get(a).getNumber());
break;
case 2:
Double c=sc.nextDouble();
Double b;
b=c+at.get(a).getNumber();
at.get(a).setNumber(b);
System.out.println("你此次存了"+c+"元"+"账户余额还有"+b+"元");
break;
case 3:
qu(a,at);
break;
case 4:
zhuan(a,at);
break;
case 5:
xiu(a,at);
break;
case 6:
return 0;
case 7:
int zhux=zhu(a,at);
if (zhux==1){
return 0;
}
}
}
}
return 0;
}
public static Double qu(int a,ArrayList<Atm> at){
Scanner sc=new Scanner(System.in);
System.out.println("请输入取钱金额");
Double nmb=sc.nextDouble();
if (nmb<=at.get(a).getNumber()){
at.get(a).setNumber(at.get(a).getNumber()-nmb);
Double o=at.get(a).getNumber();
System.out.println("你的余额还剩" + o + "元");
return o;
} else {Double o=at.get(a).getNumber();
System.out.println("金额不足");
return o;
}
}
public static Double zhuan(int a,ArrayList<Atm> at){
int c=0;
while (true){
Scanner sc=new Scanner(System.in);
System.out.println("请输入转账账户");
int nmb=sc.nextInt();
for (int i = 0; i <at.size() ; i++) {
if (nmb==at.get(i).getCar()){
c=i;
} else if(i==at.size()-1&&c==0)
{
System.out.println("不存在该账户请重新输入");
return 0.0;
}
}
String name=(at.get(c).getName());
System.out.println("*" + name.substring(1));
for (int j = 3; j >0 ; j--) {
System.out.println("请输入收款人姓氏,你有"+j+"次机会");
String na=sc.next();
if (na.equals(name.substring(0,1))){
Double nm=z(a,at);
at.get(c).setNumber(at.get(c).getNumber()+nm);
return 0.0;
}
}
return 0.0;
}
}
public static Double z(int a,ArrayList<Atm> at){
Scanner sc=new Scanner(System.in);
System.out.println("请输入转账金额");
double nmb=sc.nextDouble();
if (nmb<=at.get(a).getNumber()){
at.get(a).setNumber(at.get(a).getNumber()-nmb);
Double o=at.get(a).getNumber();
System.out.println("转账成功");
System.out.println("你的余额还剩" + o + "元");
return nmb;
} else {Double o=at.get(a).getNumber();
System.out.println("金额不足");
System.out.println("转账失败");
return 0.0;
}
}
public static void xiu(int a,ArrayList<Atm> at){
Scanner sc=new Scanner(System.in);
int i=3;
while (i>0) {
i--;
System.out.println("请输入你的密码新密码,你还有"+i+"次机会");
String mima = sc.next();
System.out.println("请你再次输入密码");
String mi = sc.next();
if (mi.equals(mima)) {
at.get(a).setMima(mi);
break;
}
}
}
public static int zhu(int a,ArrayList<Atm> at){
Scanner sc=new Scanner(System.in);
System.out.println("请输入密码验证信息");
String mi=sc.next();
if (mi.equals(at.get(a).getMima())){
Atm z=new Atm();
z=at.remove(a);
System.out.println(z.getName() + "先生，你的账户注销完成");
return 1;
}else System.out.println("密码错误，注销失败");
return 0;
}
}
创建ATM机属性类
package com.lic;
public class Atm {
private int car;
private String name;
private Double number;
private String mima;
public Atm(int car, String name, Double number, String mima) {
this.car = car;
this.name = name;
this.number = number;
this.mima = mima;
}
public Atm() {
}
public int getCar() {
return car;
}
public void setCar(int car) {
this.car = car;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Double getNumber() {
return number;
}
public void setNumber(Double number) {
this.number = number;
}
public String getMima() {
return mima;
}
public void setMima(String mima) {
this.mima = mima;
}
}
程序实现一下功能
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