考试

//信1705-2班 20173552 白明霞
package accountinformation;
public class account {
private String accountID;
private String accountname;
private String operatedate;
private String accountpassword;
private int operatetype;
private int accountbalance;
private int amount;
public void set_accountID(String ID){
 accountID=ID;
}
public String get_accountID() {
 return accountID;
}
void set_accountname(String na) {
 accountname=na;
}
String get_accountname() {
 return accountname;
}
void set_operatedate(String date) {
 operatedate=date;
}
String get_operatedate() {
 return operatedate;
}
void set_accountpassword(String word) {
 accountpassword=word;
}
String get_accountpassword() {
 return accountpassword;
}
void set_operatetype(int type) {
 operatetype=type;
}
int get_operatetype() {
 return operatetype;
}
void set_accountbalance(int ba) {
 accountbalance=ba;
}
int get_accountbalance() {
 return accountbalance;
}
void set_amount(int am) {
 amount=am;
}
int get_amount(){
 return amount;
}
}

 

 

 

 

package accountinformation;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.UUID;
/*public class accountmanager {
    public static String txt2String(File file){
        StringBuilder result = new StringBuilder();
        try{
            BufferedReader br = new BufferedReader(new FileReader(file));//构造一个BufferedReader类来读取文件
            String s = null;
            while((s = br.readLine())!=null){//使用readLine方法，一次读一行
                result.append(System.lineSeparator()+s);
            }
            br.close();   
        }catch(Exception e){
            e.printStackTrace();
        }
        return result.toString();
    }
   
    public static void main(String[] args){
        File file = new File("C:/accountinformation.txt");
        System.out.println(txt2String(file));
    }
}
*/

 

public class accountmanager {
static int accountbalance=0;
static account[] account=new account[10];
public static void main(String args[]) {
 Scanner input = new Scanner(System.in);
    String cardNum = "20173552"; // 卡号
    int pwd = 123456; // 密码
    boolean flag = true; // 声明布尔类型变量
    double surplus = 1000;// 余额
    System.out.println("***************************************************************");
    System.out.println("---------欢迎使用工商银行ATM机---------");
    System.out.println("***************************************************************");
    /** 用于进行登录的次数限制止 **/
    for (int i = 1; i <= 3; i++) {
     System.out.println("****************************************************************");
        System.out.println("请插入您的银行卡:");
        String inputCard = input.next();
        System.out.println("****************************************************************");
        System.out.println("请输入您的密码:");
        int inputPwd = input.nextInt();

        // 验证账号和密码
        if (inputCard.equals(cardNum) && inputPwd == pwd) {
            flag = true;
            break;
        } else {
            if (i <= 2) {
                System.out.println("对不起,密码输入不正确,你还有" + (3 - i) + "次机会!");
            } else {
                System.out.println("对不起,卡已被锁定!");
                break;
            }
            flag = false;
        }
    }

    /** 登录成功后选择功能 */
    if (flag) {
        char answer = 'y';
        while (answer == 'y') {
         System.out.println("****************************************************************");
            System.out.println("请选择功能:1.取款    2.存款    3.查询余额    4.转账   5.退出");
            System.out.println("****************************************************************");
            int choice = input.nextInt();
            switch (choice) {
            case 1:
             System.out.println("****************************************************************");
                System.out.println("取款");
                System.out.println("****************************************************************");
                System.out.println("请输入取款金额:");
                double getMoney = input.nextDouble();
                if (getMoney > 0) {
                    if (getMoney <= surplus) {
                        if (getMoney % 100 == 0) {
                            System.out.println("请取走您的钞票!余额为￥" + (surplus - getMoney));
                        } else {
                            System.out.println("对不起,不能取零钱!");
                        }
                    } else {
                        System.out.println("对不起,余额不足!");
                    }
                } else {
                    System.out.println("请输入正确的金额:");
                }

                break;
            case 2:
             System.out.println("****************************************************************");
                System.out.println("存款");
                System.out.println("****************************************************************");
                System.out.println("请把钞票整理后放入存钞口:");
                double saveMoney = input.nextDouble();
                if (saveMoney > 0 && saveMoney <= 10000) {
                    if (saveMoney % 100 == 0) {
                        surplus += saveMoney;
                        System.out.println("存款成功!余额为￥" + surplus);
                    } else {

                        double backMoney = saveMoney % 100;
                        surplus = saveMoney + surplus - backMoney;
                        System.out.println("存款成功!余额为￥" + surplus);
                        System.out.println("请取走零钱￥" + backMoney);
                    }
                } else if (saveMoney > 10000) {
                    System.out.println("一次最多存入一万元,请分批存入!");
                }
                break;
            case 3:
             System.out.println("****************************************************************");
                System.out.println("查询余额");
                System.out.println("****************************************************************");
                System.out.println("您卡上的余额是:" + surplus);
                break;
            case 4:
             System.out.println("****************************************************************");
                System.out.println("转账");
                System.out.println("****************************************************************");
                System.out.println("请输入转账金额:");
                double goMoney = input.nextDouble(); // 转账金额
                if (goMoney > 0) {
                    if (goMoney <= surplus) {
                        System.out.println("转账成功!余额为￥" + (surplus - goMoney));
                    } else {
                        System.out.println("对不起,请确保卡上有足够的余额!");
                    }

                } else {
                    System.out.println("转账失败!请输入正确的金额:");
                }
                break;
            case 5:
             System.out.println("****************************************************************");
                 System.out.println("退出");
                 System.out.println("****************************************************************");
                System.out.println("谢谢您的使用!");
              
                break;
            }// switch end
            System.out.println("继续吗?y/n");
            answer = input.next().charAt(0);

        } // while end
        System.out.println("谢谢使用!");

    }

}
}