JAVA开学考试问题分析

package hellopeace;
// 信1905-2 20194199 刘佳琦
import java.util.Scanner;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
class Account {
    String accountID;
    String accountname;
    String operatedate;
    int operatetype;
    String accountpassword;
    int accountbalance;
    int amount;
    public String getaccountID()
    {
        return accountID;
    }
    public void setaccountID(String accountID)
    {
        this.accountID = accountID;
    }
    public String getoperatedate() 
    {
        return operatedate;
    }
    public void setoperatedate(String operatedate) 
    {
        this.operatedate = operatedate;
    }
    public String getaccountname() 
    {
        return accountname;
    }
    public void setaccountname(String accountname) 
    {
        this.accountname = accountname;
    }
    public int getoperatetype() {
        return operatetype;
    }
    public void setoperatetype(int operatetype) {
        this.operatetype = operatetype;
    }
    public String getaccountpassword() {
        return accountpassword;
    }
    public void setaccountpassword(String accountpassword) {
        this.accountpassword = accountpassword;
    }
    public int getamount() {
        return amount;
    }
    public void setamount(int amount) {
        this.amount = amount;
    }
    public int getaccountbalance() {
        return accountbalance;
    }
    public void setaccountbalance(int accountbalance) {
        this.accountbalance = accountbalance;
    }
    Account(String accountID,String accountname,String operatedate,int operatetype,String accountpassword,int amount,int accountbalance)
    {
        this.accountID = accountID;
        this.operatedate = operatedate;
        this.operatetype = operatetype;
        this.accountpassword = accountpassword;
        this.amount = amount;
        this.accountname = accountname;
        this.accountbalance=accountbalance;
    }
}


public class rr {

    static int sum=0;
    static Scanner input = null;
    static Account[] accountinformation = new Account[1000];
    
    public static String coder() {               //输入账号
        input = new Scanner(System.in);
        String accountID;
        int k;
        int p=0;
       System.out.println("*************************************************************** \n" + 
               "         欢迎使用中国工商银行自动柜员系统\n" + 
               "**************************************************************** \n" + 
               " 请输入您的账号\n"+
               "**************************************************************** \n");
       accountID=input.next();
       if (accountID.length()!=8)
       {
           System.out.print("该卡不是工行卡\n");
       }
       for(k=0;k<1000;k++) {
           if( accountinformation[k].accountID.equals(accountID)) {
               p=1;
        }
   }
       return accountID;
}
    
  public static int systemMenu() {
        input = new Scanner(System.in);
       System.out.println("***************************************************************\n"
               +"欢迎"+accountinformation[sum].accountname+"使用中国工商银行自助柜员系统\n"
               +"****************************************************************\n"
               +"1、存款；\n "
               +"2、取款；\n"
               +"3、转账汇款;\n "
               +"4、修改密码；\n"
               +"5、查询余额；\n"
               +"**************************************************************** ");
       int ch;
       System.out.println("请选择:");
       ch = input.nextInt();
       return ch;
   }
    
   public static int passer(String accountID) {               //输入账号
           input = new Scanner(System.in);
           String accountpassword;
           int k;
           int p=0;
           for(k=0;!(accountinformation[k].accountID.equals(accountID));k++){}
          System.out.println("*************************************************************** \n" + 
                  "         欢迎使用中国工商银行自动柜员系统\n" + 
                  "**************************************************************** \n" + 
                  " 请输入您的密码\n"+
                  "**************************************************************** \n");
          accountpassword=input.next();
          if(accountinformation[k].accountpassword.equals(accountpassword))
          {p=1;}
          sum=k;
          return p;
   }
    public static void Addaccount(String accountID,String accountname,String accountpassword,int accountbalance){
        
        int k;
        for(k=0;k<sum;k++) {
            if( accountinformation[k].accountID.equals(accountID) ) {
                System.out.println("账户重复");
                return;
            }
        }
        
        accountinformation[sum] = new Account(accountID,accountname,"unknow",0,accountpassword,0,accountbalance);

        sum++;
        }


    public static void main(String[] args) {
        File ptr=new File("C:\\Users\\14997\\Desktop\\","accountinformation.txt");
        File pan=new File(ptr.getParent());
        input=new Scanner(System.in);
        String though;
        int pro,clone,cash;
        int check=0;
        int k1;
        int ac;
        String accountID;
        String accountname;
        String operatedate;
        int operatetype;
        String accountpassword;
        int amount;
        int accountbalance;
        int choice;
        System.out.println("现在是初始创建五名用户信息(请依照用户账号、用户名、用户密码、用户余额输入):");
           for(k1=0;k1<5;k1++) {   
              accountID = input.next();
              accountname = input.next();
              accountpassword= input.next();
              accountbalance= input.nextInt();
              rr.Addaccount(accountID,accountname,accountpassword,accountbalance);
           }
        sum=5; 
        though=coder();
        pro=passer(though);
        choice=systemMenu();
        
        while(choice<=5&&choice>=1) {
            
            switch (choice) {
            case 1:
                        System.out.print("***************************************************************\n" + 
                        "欢迎"+accountinformation[sum].accountname+"使用中国工商银行自助柜员系统\n" + 
                        "****************************************************************\n" + 
                        "请输入存款金额；\n" + 
                        "       \n" + 
                        "****************************************************************");
                        ac=input.nextInt();
                        for(;ac<0;)
                        {
                            System.out.print("输入金额错误\n");
                            System.out.print("请重新输入金额\n");
                            ac=input.nextInt();
                        }
                        accountinformation[sum].accountbalance=accountinformation[sum].accountbalance+ac;
                        System.out.print("***************************************************************\r\n" + 
                               "欢迎"+accountinformation[sum].accountname+"使用中国工商银行自助柜员系统\r\n" + 
                               "****************************************************************\r\n" + 
                               "当前账户存款操作成功。\r\n" + 
                               "当前账户余额为："+accountinformation[sum].accountbalance+"元\r\n" + 
                               "****************************************************************");
                        OutputStream output = System.out;
                        byte[] byten=(accountinformation[sum].accountID+" 存入"+ac+"元\n").getBytes();
                        try {
                        output.write(byten);
                        } catch (IOException e) {}
                        
                break;
            case 2:
                String we="y";
                for(;we!="q";)
                {
                System.out.print("***************************************************************\r\n" + 
                        "欢迎"+accountinformation[sum].accountname+"使用中国工商银行自助柜员系统\r\n" + 
                        "****************************************************************当前账户每日可以支取2万元。\r\n" + 
                        "1、100元\r\n" + 
                        "2、500元\r\n" + 
                        "3、1000元\r\n" + 
                        "4、1500元\r\n" + 
                        "5、2000元\r\n" + 
                        "6、5000元；\r\n" + 
                        "7、其他金额\r\n" + 
                        "8、退卡\r\n" + 
                        "9、返回\r\n" + 
                        "****************************************************************");
                     clone=input.nextInt();
                     switch (clone)
                     {
                        case 1:
                            accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-100;
                            if(accountinformation[sum].accountbalance<100)
                            {System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元");break;}
                            OutputStream output2 = System.out;
                            byte[] byten2=(accountinformation[sum].accountID+" 支出100元\n").getBytes();
                            try {
                            output2.write(byten2);
                            } catch (IOException e) {}
                            break;
                        case 2:
                            accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-500;
                            if(accountinformation[sum].accountbalance<500)
                            {System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元");break;}
                            OutputStream output3 = System.out;
                            byte[] byten3=(accountinformation[sum].accountID+" 支出500元\n").getBytes();
                            try {
                            output3.write(byten3);
                            } catch (IOException e) {}
                            break;
                        case 3:
                            accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-1000;
                            if(accountinformation[sum].accountbalance<1000)
                            {System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元");break;}
                            OutputStream output4 = System.out;
                            byte[] byten4=(accountinformation[sum].accountID+" 支出1000元\n").getBytes();
                            try {
                            output4.write(byten4);
                            } catch (IOException e) {}
                            break;
                        case 4:
                            accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-1500;
                            if(accountinformation[sum].accountbalance<1500)
                            {System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元");break;}
                            OutputStream output5 = System.out;
                            byte[] byten5=(accountinformation[sum].accountID+" 支出1500元\n").getBytes();
                            try {
                            output5.write(byten5);
                            } catch (IOException e) {}
                            break;
                        case 5:
                            accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-2000;
                            if(accountinformation[sum].accountbalance<2000)
                            {System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元");break;}
                            OutputStream output6 = System.out;
                            byte[] byten6=(accountinformation[sum].accountID+" 支出2000元\n").getBytes();
                            try {
                            output6.write(byten6);
                            } catch (IOException e) {}
                            break;
                        case 6:
                            accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-5000;
                            if(accountinformation[sum].accountbalance<5000)
                            {System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元");break;}
                            OutputStream output7 = System.out;
                            byte[] byten7=(accountinformation[sum].accountID+" 支出5000元\n").getBytes();
                            try {
                            output7.write(byten7);
                            } catch (IOException e) {}
                            break;
                        case 7:
                            int c;
                            System.out.println("请输入取款金额");
                            c=input.nextInt();
                            for(;accountinformation[sum].accountbalance<c;)
                            {
                                System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元，请重新输入");
                            }
                            accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-c;
                            OutputStream output8 = System.out;
                            byte[] byten8=(accountinformation[sum].accountID+" 支出"+c+"元\n").getBytes();
                            try {
                            output8.write(byten8);
                            } catch (IOException e) {}
                            break;
                     }
                     System.out.println("请问要重新取款吗 按q退出");
                     we=input.next();                     
                }
                break;
            case 3:
                String p;
                System.out.print("***************************************************************\n" + 
                        "欢迎"+accountinformation[sum].accountname+"使用中国工商银行自助柜员系统\n" + 
                        "****************************************************************\n" + 
                        "请输入转账账户；\n" + 
                        "       \n" + 
                        "****************************************************************");
                int k=1001;
                p=input.next();
                for (;k==1001;) 
                {
                    for(k=0;accountinformation[k].accountID.equals(p);k++){}
                    if(k==1001)
                    {System.out.print("账户不存在，请重新输入");}
                    p=input.next();
                }
                int c;
                System.out.println("请输入转账金额");
                c=input.nextInt();
                for(;accountinformation[sum].accountbalance<c;)
                {
                    System.out.println("余额不足，还有"+accountinformation[sum].accountbalance+"元，请重新输入");
                }
                accountinformation[sum].accountbalance=accountinformation[sum].accountbalance-c;
                OutputStream output8 = System.out;
                byte[] byten8=(accountinformation[sum].accountID+" 支出"+c+"元\n"+accountinformation[k].accountID+" 存入"+c+"元\n").getBytes();
                try {
                output8.write(byten8);
                } catch (IOException e) {}
                accountinformation[sum].accountbalance=accountinformation[sum].accountbalance+c;
                break;
            case 4:
                String self,self2="0",self3="1";
                 System.out.print("***************************************************************\n" + 
                         "欢迎"+accountinformation[sum].accountname+"使用中国工商银行自助柜员系统\r\n" + 
                         "****************************************************************\n" );
                 System.out.print("请输入当前密码：\n");
                 self=input.next();
                 for(;self!=accountinformation[sum].accountID;)
                 {System.out.print("密码输入错误");self=input.next();}
                 for(;self2!=self3;)
                 {
                    System.out.print("请输入修改密码：\n");
                    self2=input.next();
                    System.out.print("请输入确认密码：\n");
                    self2=input.next();
                    if(self2!=self3)
                    {System.out.print("两次输入不匹配，请重新输入\n");}
                 }
                 accountinformation[sum].accountID=self2;
                 System.out.print("****************************************************************");
                break;    
            case 5:
                System.out.print("***************************************************************\n" + 
                        "欢迎"+accountinformation[sum].accountname+"使用中国工商银行自助柜员系统\n" + 
                        "****************************************************************\n" + 
                        "当前账户余额为："+accountinformation[sum].accountbalance+"元\n" + 
                        "账户清单信息为：\n");
                byte[] byte3 = new byte[1024];
                
                try {
                    InputStream inp = System.in;
                    while(inp.read() != -1){
                        String str = new String(byte3).trim();
                    }
                    inp.close();
                    
                } catch (IOException e) {} 
                
                break;
                
            }
    }

}
}