ATM机

package student;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;
//苏宁 20193964 信1905-1班
public class Account {
private static String accountID;
private static String accountname;
private static String operatedate;
private static int operatetype;
private static String accountpassword;
private static int accountbalance;
private static int amount;
public static class AccountManager
{
public static void l()//流水记录完成
{
Date date = new Date();
SimpleDateFormat ft = new SimpleDateFormat ("yyyy-MM-dd");
operatedate=ft.format(date);
try{
File file = new File("accountlist.txt");
FileOutputStream er = null;
er = new FileOutputStream(file,true);
OutputStreamWriter osw = new OutputStreamWriter(er, "UTF-8");
osw.write(accountID);
osw.write(" ");
osw.write(accountname);
osw.write(" ");
osw.write(operatedate);
osw.write(" ");
String q4;
q4=String.valueOf(operatetype);
osw.write(q4);
osw.write(" ");
q4=String.valueOf(amount);
osw.write(q4);
osw.write(" ");
osw.close();
}catch (Exception e) {
e.printStackTrace();
}
}
private static void r() throws IOException//账号登录完成
{
Scanner k=new Scanner(System.in);
String accountID2=k.next();
try(BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream("accountinformation.txt"),"UTF-8")); )
{
for(int u=0;;u++)
{
String y;
accountID=br.readLine();
accountname=br.readLine();
accountpassword=br.readLine();
y=br.readLine();
accountbalance = Integer.valueOf(y).intValue();
if(accountID2.equals(accountID))
{
b();
}
if(u==4)
{
System.out.println("未查找到账户");
a();
break;
}
}
br.close();
}
}
public static void a() throws IOException//账号输入页面完成
{
System.out.println("***************************************************************");
System.out.println(" 欢迎使用中国工商银行自动柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请输入您的账号： ");
System.out.println("");
System.out.println("***************************************************************");
r();
}
public static void b() throws IOException//密码输入页面完成
{
String sr;
Scanner k=new Scanner(System.in);
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请输入您的密码： ");
System.out.println("");
System.out.println("***************************************************************");
for(int y=0;y<3;y++)
{
sr=k.next();
if(sr.equals(accountpassword)) {
c();
}else {
System.out.println("密码录入错误");
System.out.print("请重新输入：");
}
}
System.out.println("该账号三次录入密码错误，该卡已被系统没收，请与工行及时联系处理");
System.out.print("已返回主页面");
main(null);
}
public static void c() throws IOException//主页面完成
{
int a;
Scanner k=new Scanner(System.in);
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 1.存款； ");
System.out.println(" 2.取款； ");
System.out.println(" 3.转账汇款； ");
System.out.println(" 4.修改密码； ");
System.out.println(" 5.查询余额； ");
System.out.println("");
System.out.println("***************************************************************");
a=k.nextInt();
switch(a)
{
case 1:
c1();
break;
case 2:
c2();
break;
case 3:
c3();
break;
case 4:
c4();
break;
case 5:
c5();
break;
default:
System.out.println("输入错误，重新输入");
c();
}
}
public static void c1() throws IOException//存款，流水记录完成
{
Double a;
Scanner k=new Scanner(System.in);
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请输入存款金额； ");
System.out.println("***************************************************************");
a=k.nextDouble();
if(a%1==0) {
String ty;
accountbalance+=a;
w();
amount = new Double(a).intValue();
operatetype=1;
l();
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 当前账户存款操作成功。 ");
System.out.println(" 当前账户余额为："+accountbalance+"元 ");
System.out.println("***************************************************************");
System.out.println("输入字母“q”，则返回系统输入账号界面");
ty=k.next();
if(ty=="q")
{
main(null);
}else {
System.out.println("返回主页面");
main(null);
}
}else
{
System.out.println("输入金额有误，返回存款界面");
c1();
}
}
public static void c2() throws IOException //取款，流水记录完成
{
Scanner k=new Scanner(System.in);
int y;
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 当前账户每日可以支取2万元。");
System.out.println(" 1.100元； ");
System.out.println(" 2.500元； ");
System.out.println(" 3.1000元； ");
System.out.println(" 4.1500元； ");
System.out.println(" 5.2000元； ");
System.out.println(" 6.5000元； ");
System.out.println(" 7.其他金额 ");
System.out.println(" 8.退卡 ");
System.out.println(" 9.返回 ");
System.out.println("");
System.out.println("***************************************************************");
y=k.nextInt();
switch(y)
{
case 1:
if(accountbalance>=100)
{
amount=100;
accountbalance-=amount;
c22();
}else {
c23();
}
break;
case 2:
if(accountbalance>=500)
{
amount=500;
accountbalance-=amount;
c22();
}else {
c23();
}
break;
case 3:
if(accountbalance>=1000)
{
amount=1000;
accountbalance-=amount;
c22();
}else {
c23();
}
break;
case 4:
if(accountbalance>=1500)
{
amount=1500;
accountbalance-=amount;
c22();
}else {
c23();
}
break;
case 5:
if(accountbalance>=2000)
{
amount=2000;
accountbalance-=amount;
c22();
}else {
c23();
}
case 6:
if(accountbalance>=5000)
{
amount=5000;
accountbalance-=amount;
c22();
}else {
c23();
}
case 7:
int we;
we=k.nextInt();
if(accountbalance>=we)
{
int a;
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"（账户名称）使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请输入存款金额；");
System.out.println("");
System.out.println("***************************************************************");
amount=we;
accountbalance-=amount;
c22();
}else {
c23();
}
case 8:
a();
break;
case 9:
c();
break;
default:
System.out.println("输入错误，重新输入");
c2();
}
}
public static void c22() throws IOException//取款成功页面完成
{
w();
operatetype=2;
l();
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"（账户名称）使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 当前账户取款"+amount+"操作成功。");
System.out.println(" 当前账户余额为："+accountbalance+" ");
System.out.println("***************************************************************");
System.out.println("返回主界面");
main(null);
}
public static void w() throws IOException //账户余额保存完成
{
String[] w1=new String[5];
String[] w2=new String[5];
String[] w3=new String[5];
String[] w4=new String[5];
try(BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream("accountinformation.txt"),"UTF-8")); )
{
for(int u=0;u<5;u++)
{
w1[u]=br.readLine();
w2[u]=br.readLine();
w3[u]=br.readLine();
w4[u]=br.readLine();
}
br.close();
}
File file=new File("accountinformation.txt");
file.delete();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
for(int u=0;u<5;u++)
{
bufferedWriter.write(w1[u]);
bufferedWriter.newLine();
bufferedWriter.write(w2[u]);
bufferedWriter.newLine();
bufferedWriter.write(w3[u]);
bufferedWriter.newLine();
if(w1[u].equals(accountID))
{
String y;
y =String.valueOf(accountbalance);
bufferedWriter.write(y);
bufferedWriter.newLine();
}else
{
bufferedWriter.write(w4[u]);
bufferedWriter.newLine();
}
}
bufferedWriter.flush();
bufferedWriter.close();
}
public static void c23() throws IOException//取款余额不足页面完成
{
System.out.println("余额不足，重新输入");

}
public static void c3() throws IOException //转账页面完成
{
Scanner k=new Scanner(System.in);
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请输入转账账户： ");
System.out.println("");
System.out.println("***************************************************************");
String tr=k.next();
try(BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream("accountinformation.txt"),"UTF-8")); )
{
String q1;
String q2;
String q3;
String q4;
for(int u=0;;u++)//查找转账账户
{
q1=br.readLine();
q2=br.readLine();
q3=br.readLine();
q4=br.readLine();
if(tr.equals(q1))//找到转账账户
{
int sr;
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请输入转账金额： ");
System.out.println("");
System.out.println("***************************************************************");
sr=k.nextInt();
amount=sr;
if(sr<=accountbalance)//余额判断
{
String h,m;
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请确认"+q2+"转账 "+amount+"元 ");
System.out.println("");
System.out.println("***************************************************************");
System.out.println("“Y”表示确认转账,“N”表示不确认转账");
h=k.next();
m="Y";
if(h.equals(m))//转账确认后
{
accountbalance-=amount;
w();//本账户余额保存
int rs;//转账账户余额计算
rs = Integer.valueOf(q4).intValue();
rs+=amount;
q4=String.valueOf(rs);
String[] w1=new String[5];//下面是转账账号余额保存
String[] w2=new String[5];
String[] w3=new String[5];
String[] w4=new String[5];
try(BufferedReader eg=new BufferedReader(new InputStreamReader(new FileInputStream("accountinformation.txt"),"UTF-8")); )
{
for(int v=0;v<5;v++)
{
w1[v]=eg.readLine();
w2[v]=eg.readLine();
w3[v]=eg.readLine();
w4[v]=eg.readLine();
}
eg.close();
}
File file=new File("accountinformation.txt");
file.delete();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
for(int v=0;v<5;v++)
{
bufferedWriter.write(w1[v]);
bufferedWriter.newLine();
bufferedWriter.write(w2[v]);
bufferedWriter.newLine();
bufferedWriter.write(w3[v]);
bufferedWriter.newLine();
if(w1[v].equals(q1))
{
bufferedWriter.write(q4);
bufferedWriter.newLine();
}else
{
bufferedWriter.write(w4[v]);
bufferedWriter.newLine();
}
}
bufferedWriter.flush();
bufferedWriter.close();
operatetype=3;
l();
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 当前账户向"+q1+"成功转账"+amount+"元。 ");
System.out.println(" 余额："+accountbalance+"；");
System.out.println("***************************************************************");
System.out.println("返回主页面");
a();
}else
{
System.out.println("已取消");
a();
}
}else
{
System.out.println("余额不足");
a();
}
}
if(u==4)
{
System.out.println("未查找到账户");
c3();
}
}
}
}
public static void c4() throws IOException//修改密码完成
{
String sr,jk;
Scanner k=new Scanner(System.in);
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 请输入当前密码： ");
System.out.println(" 请输入修改密码： ");
System.out.println(" 请输入确认密码： ");
System.out.println("");
System.out.println("***************************************************************");
sr=k.next();
if(sr.equals(accountpassword)) {
sr=k.next();
jk=k.next();
for(int u=0;;u++)
{
if(sr.equals(jk))
{
accountpassword=jk;
w2();
operatetype=4;
l();
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 当前账号修改密码成功 ");
System.out.println("***************************************************************");
System.out.println("返回主页面");
a();
break;
}else {
System.out.println("修改密码和确认密码不一致，重新输入");
}
}
}else {
System.out.println("密码错误");
c4();
}
}
public static void w2() throws IOException//保存修改密码完成
{
String[] w1=new String[5];
String[] w2=new String[5];
String[] w3=new String[5];
String[] w4=new String[5];
try(BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream("accountinformation.txt"),"UTF-8")); )
{
for(int u=0;u<5;u++)
{
w1[u]=br.readLine();
w2[u]=br.readLine();
w3[u]=br.readLine();
w4[u]=br.readLine();
}
br.close();
}
File file=new File("accountinformation.txt");
file.delete();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
for(int u=0;u<5;u++)
{
bufferedWriter.write(w1[u]);
bufferedWriter.newLine();
bufferedWriter.write(w2[u]);
bufferedWriter.newLine();
if(w1[u].equals(accountID))
{
bufferedWriter.write(accountpassword);
bufferedWriter.newLine();
}else
{
bufferedWriter.write(w3[u]);
bufferedWriter.newLine();
}
bufferedWriter.write(w4[u]);
bufferedWriter.newLine();
}
bufferedWriter.flush();
bufferedWriter.close();
}
public static void c5() throws IOException //流水查看完成
{
amount=0;
operatetype=5;
l();
System.out.println("***************************************************************");
System.out.println(" 欢迎"+accountname+"使用中国工商银行自助柜员系统 ");
System.out.println("***************************************************************");
System.out.println(" 当前账户余额为："+accountbalance+" ");
System.out.println(" 账户清单信息为: ");
try(BufferedReader yr=new BufferedReader(new InputStreamReader(new FileInputStream("accountlist.txt"),"UTF-8")); )
{
String c1;
String c2;
String c3;
String c4;
String c5;
for(int u=1;;u++)
{
if((c1=yr.readLine())==null) break;
c2=yr.readLine();
c3=yr.readLine();
c4=yr.readLine();
c5=yr.readLine();
if(c1.equals(accountID))
{
System.out.print(u+" 操作日期：");
System.out.print(c3+" ");
int sda;
sda = Integer.valueOf(c4).intValue();
switch(sda)
{
case 1:
System.out.print("存款 ");
break;
case 2:
System.out.print("取款 ");
break;
case 3:
System.out.print("转账汇款 ");
break;
case 4:
System.out.print("修改密码 ");
break;
case 5:
System.out.print("查询余额 ");
break;
}
System.out.println(c5+" ");
}
}
System.out.println("打印完成；");
System.out.println("***************************************************************");
}

}
}
public static void main(String[] args) throws IOException {
AccountManager.a();
}
}