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java實(shí)現(xiàn)簡單銀行管理系統(tǒng)

 更新時(shí)間:2019年12月26日 14:16:52   作者:weihubeats  
這篇文章主要為大家詳細(xì)介紹了java實(shí)現(xiàn)簡單銀行管理系統(tǒng),文中示例代碼介紹的非常詳細(xì),具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了java銀行管理系統(tǒng)的具體代碼,供大家參考,具體內(nèi)容如下

賬戶類

package Account;
 
public abstract class Account {
  private int id;//賬號(hào)
  private String password;//密碼
  private String name;//姓名
  private String personId;//身份證號(hào)碼
  private String email;//郵箱
  private double ceiling;//貸款屬性
  private static double balance;//賬戶余額
  
  public Account() {}
 
  public Account(int id, String password, String name, String personId,
      String email, double balance,double ceiling) {
    super();
    this.id = id;
    this.password = password;
    this.name = name;
    this.personId = personId;
    this.email = email;
    this.balance = balance;
    this.ceiling = ceiling;
  }
  public Account(int id, String password, String name, String personId,
      String email) {
    super();
    this.id = id;
    this.password = password;
    this.name = name;
    this.personId = personId;
    this.email = email;
  }
  public Account(int id, String password) {
    this.id =id;
    this.password = password;
  }
  //開戶函數(shù)
  public Account openAccount() {
    return null;
  }
  //顯示開戶成功的信息函數(shù)
  public void show() {
    System.out.println("賬戶ID為 : " + id + "密碼為: " + password + "姓名為: " + name + "身份證號(hào)碼為: " + personId + "郵箱為:  " + email);
  }
  //登入函數(shù)
  public void enter() {
    
  }
  //取款方法 為抽象方法
  public abstract void deposit(double money); 
    
  //存款方法
  public static void withdraw(double money) {
    balance = balance + money;
      System.out.println("您已經(jīng)存入" + money + "元,賬戶余額為" + balance );
  }
//  public abstract void requestLoan(double money);
 
  public double getCeiling() {
    return ceiling;
  }
 
  public void setCeiling(double ceiling) {
    this.ceiling = ceiling;
  }
 
  public int getId() {
    return id;
  }
  public void setId( int id) {
    this.id = id;
  }
 
  public String getPassword() {
    return password;
  }
 
  public void setPassword(String password) {
    this.password = password;
  }
 
  public String getName() {
    return name;
  }
 
  public void setName(String name) {
    this.name = name;
  }
 
  public String getPersonId() {
    return personId;
  }
 
  public void setPersonId(String personId) {
    this.personId = personId;
  }
 
  public String getEmail() {
    return email;
  }
 
  public void setEmail(String email) {
    this.email = email;
  }
 
  public double getBalance() {
    return balance;
  }
  public void setBalance(double balance) {
    this.balance = balance;
  }
 
  
  
}

Bank類

package Account;
 
import java.util.Scanner;
 
public class Bank {
  int i;// 賬戶編號(hào)
  private Account[] account = new Account[100];// 賬戶對(duì)象數(shù)組
  private int accountNum = 0;// 賬戶數(shù)量
  private int type;// 賬戶類型
  private String password1;// 確認(rèn)密碼
  int id = 100000;//第一個(gè)開戶賬號(hào)
  int j = 1;//常量控制開戶賬號(hào)每次+1
  Scanner sc = new Scanner(System.in);
  int insert;
 
  public Bank() {
  }
 
  // 主界面
  public void mainView() {
    System.out.println("******歡迎登入銀行管理系統(tǒng)********");
    System.out.println("******請選擇業(yè)務(wù)***************");
    System.out.println("******1、創(chuàng)建賬戶**************");
    System.out.println("******2、登入賬戶**************");
  }
 
  //功能選擇函數(shù)
  public void select() {
    int select = sc.nextInt();
    switch(select) {
    case 1 : this.openAccount();
    break;
    case 2 : this.enter();
    break;
    }
 
 
  }
 
  // 開戶函數(shù)
  public Account openAccount() {
    System.out.println("請輸入您的姓名");
    String name = sc.next();
 
    //    System.out.println("請輸入您的卡號(hào)");
    //    int id = sc.nextInt();
    System.out.println("請輸入您的密碼");
    String password = sc.next();
 
    System.out.println("請?jiān)俅未_認(rèn)您的密碼");
    String password1 = sc.next();
    while (!password1.equals(password)) {
      System.out.println("對(duì)不起,兩次輸入的密碼不一致,請重新輸入");
      System.out.println("請重新輸入您的密碼");
      password = sc.next();
      System.out.println("請?jiān)俅未_認(rèn)您的密碼");
      password1 = sc.next();
    }
 
    System.out.println("請輸入您的身份證號(hào)碼");
    String personId = sc.next();
 
    System.out.println("請輸入您的郵箱");
    String email = sc.next();
 
    System.out.println("請輸入您的賬戶類型");
    System.out.println("1、存儲(chǔ)卡            2、信用卡");
    type = sc.nextInt();
    switch (type) {
    case 1:
      account[accountNum] = new LoanSavingAccount(100000 + j, password, name,
          personId, email, 0, 0); // 創(chuàng)建存儲(chǔ)卡賬戶對(duì)象,初始余額為0,默認(rèn)貸款金額為0元
      account[accountNum].show();//調(diào)用顯示賬戶信息函數(shù)
      System.out.println("卡類型為:存儲(chǔ)卡");
      accountNum++;
      j++;
      return account[accountNum];
    case 2:
      account[accountNum] = new LoanCreditAccount(100000 + j, password, name,
          personId, email, 0, 0, 5000); // 創(chuàng)建信用卡賬戶對(duì)象,多一個(gè)透資屬性,初始透資金額為5000元
      account[accountNum].show();//調(diào)用顯示賬戶信息函數(shù)a
      System.out.println("卡類型為: 信用卡");
      accountNum++;
      j++;
      return account[accountNum];
    }
    return null;
 
  }
 
  // System.out.println("恭喜您,創(chuàng)建賬號(hào)成功啦?。。? + "您的賬號(hào)名為"+ account.getId() +
  // "您的賬戶類型為" + type);
  // return account;
 
  // 登入函數(shù)
  public Account enter() {
    System.out.println("請輸入您的銀行卡號(hào)");
    int id = sc.nextInt();
    System.out.println("請輸入您的密碼");
    String password = sc.next();
    if (accountNum == 0) {
      System.out.println("未注冊賬戶,請先注冊!");
      this.openAccount();
      this.mainView();
      this.select();
    } 
    boolean flag = false;
    for (i = 0; i < accountNum; i++) {
      if (id == account[i].getId() && password.equals(account[i].getPassword())) {//判斷Id和輸入的賬戶密碼是否一致
        flag = true;
        break;
      }
    }
    if (!flag) {
      System.out.println("登入失?。。。?);
    }
    if (flag) {
      System.out.println("登入成功!!!!");
      do {
        System.out.println("請選擇業(yè)務(wù)");
        System.out.println("******1、存款*****************");
        System.out.println("******2、取款*****************");
        System.out.println("******3、貸款*****************");
        System.out.println("******4、還款*****************");
        System.out.println("******3、按任意鍵退出*************");
        insert = sc.nextInt();
        switch(insert) {
        case 1 :   
          System.out.println("******請輸入存款金額*****************");
          int money = sc.nextInt();
          account[i].withdraw(money);                
          break;
 
        case 2:   System.out.println("******請輸入取款金額*****************");
        money = sc.nextInt();
        account[i].deposit(money);//調(diào)用取款方法
        break;
 
        case 3:   judge();
               break;
 
 
        case 4:   repay();
               break;
        }
      } while(insert == 1 || insert == 2 || insert == 3 || insert == 4);
 
    }  
    return account[i];
 
 
  }
 
  //存款方法
  public void withdraw() {
    System.out.println("請輸入存款金額");
    int money = sc.nextInt();
    account[i].withdraw(money);
  }
  //取款方法
  public void deposit() {
    System.out.println("請輸入取款金額");
    int money = sc.nextInt();
    account[i].deposit(200);
  }
 
  //計(jì)算銀行余額總數(shù)方法
  public void Accountsum() {
    double savSum = 0;
    for (int i = 0; i < accountNum; i++) {
      savSum += account[i].getBalance();
    }
  }
 
  //判斷是LoanSavingAccount 類還是LoacCreditAccount
  //貸款方法
  public void judge() {
    System.out.println("******請輸入貸款金額*****************");
    int money = sc.nextInt();
    if (account[accountNum - 1] instanceof LoanSavingAccount) {
      LoanSavingAccount a = (LoanSavingAccount) account[accountNum - 1];
      a.requestLoan(money);
    }else {
      LoanCreditAccount b = (LoanCreditAccount) account[accountNum -1 ];
      b.requestLoan(money);
      System.out.println("成功調(diào)用了貸款方法");
    }
 
  }
 
  //還款方法
  public void repay() {
    System.out.println("******請輸入還款金額*****************");
    int money = sc.nextInt();
    if (account[accountNum - 1] instanceof LoanSavingAccount) {
//      System.out.println("判斷過了1");
      LoanSavingAccount a = (LoanSavingAccount) account[accountNum - 1];
      a.payLoan(money);
    }else {
//      System.out.println("判斷過了2");
      LoanCreditAccount b1 = (LoanCreditAccount) account[accountNum - 1];
      b1.payLoan(money);
    }
 
  }
 
 
}

信用卡類

package Account;
 
 
public class CreditAccount extends Account {  //信用卡
  private double overdraft;//透資屬性
  
  public CreditAccount() {}
 
  public CreditAccount(int id, String password, String name, String personId,String email, double balance, double ceiling, double overdraft) {
    super(id,password,name, personId, email, balance, ceiling);
    this.overdraft = overdraft;//多出一個(gè)透資屬性
  }
  
 
 
  //  public void withdraw(double money) {
//    super.setBalance(super.getBalance() + money);
//    System.out.println("你的卡號(hào)為" + super.getId() +"的卡,您已經(jīng)存入" + money + "元,賬戶余額為" + super.getBalance() );
//  }
  public void deposit(double money) {//信用卡取款方法
    if ((super.getBalance() + overdraft) >= money) {
       super.setBalance(super.getBalance() - money) ;
       System.out.println("您取了" + money + "錢,您的余額為" + super.getBalance());
    }else System.out.println("對(duì)不起您的余額和透支額度不足!");
    
    
  }
 
//  @Override
//  public void requestLoan() {
//    // TODO Auto-generated method stub
//    
//  }
  
 
}
 
 
package Account;
 
public interface General {
  void requestLoan(double money);//貸款方法
  void payLoan(double money);//還款
//  void getLoan();//獲取用戶總額
  
 
}

信用卡子類

package Account;
 
import java.util.Scanner;
 
 
public class LoanCreditAccount extends CreditAccount implements General {
  Scanner sc = new Scanner(System.in);
 
  public LoanCreditAccount(){}
  public LoanCreditAccount(int id, String password, String name, String personId,String email, double balance, double ceiling,double overdraft) {
    super(id, password, name, personId, email, balance, ceiling, overdraft);
  }
  public void requestLoan(double money) {//貸款方法
    if ( 0 <= money&& money <= 10000) {//貸款上限為10000
      System.out.println("貸款成功,您的貸款金額為: " + money);
      System.out.println("您還能貸款的金額為: " + (10000 - money));
      super.setCeiling(money);//把貸款的錢傳給貸款屬性
      super.setBalance(super.getBalance() + money);//更新余額值
      System.out.println("您現(xiàn)在的余額為: " + super.getBalance());
    }else {
      System.out.println("對(duì)不起您的額度不夠,貸款失??!");
    }
  }
  public void payLoan(double money) {//還款
    //三個(gè)判斷條件:1. 還款金額小于等于貸款金額  2.還款金額小于所剩余額 3.還款金額大于0
    
    if (super.getBalance() >= money && money <= super.getCeiling() && money >= 0) {
      super.setBalance(super.getBalance() - money); //更新余額
      super.setCeiling(super.getCeiling() - money);
      System.out.println(" 您現(xiàn)在的余額為" + super.getBalance());
      if (super.getCeiling() ==0) {
        System.out.println("您已經(jīng)全部還清?。≈x謝光臨!!");
      }else {
        
        System.out.println("您已經(jīng)還了" + money +"您還需要還" + super.getCeiling() );
      }
    }else {
      System.out.println("對(duì)不起,您的賬戶余額不足或者輸入的還款額度超出范圍!");
    }
    
  }
  public void getLoan() {//獲取用戶貸款總額
    double savSum = 0;
  };
 
}

package Account;
 
import java.util.Scanner;
 
import com_Day_7_11.SavingAccount;
 
 
//存儲(chǔ)卡子類
public class LoanSavingAccount extends SavingAccount implements General{
  Scanner sc = new Scanner(System.in);
 
 
  public LoanSavingAccount(int id, String password, String name,
      String personId, String email, double balance, double ceiling) {
    super(id, password, name, personId, email, balance, ceiling);
    
  }
  public void requestLoan(double money) {//貸款方法
    if ( 0 <= money&& money <= 10000) {//貸款上限為10000
      System.out.println("貸款成功,您的貸款金額為: " + money);
      System.out.println("您還能貸款的金額為: " + (10000 - money));
      super.setCeiling(money);//把貸款的錢傳給貸款屬性
      super.setBalance(super.getBalance() + money);//更新余額值
      System.out.println("您現(xiàn)在的余額為: " + super.getBalance());
    }else {
      System.out.println("對(duì)不起您的額度不夠,貸款失??!");
    }
  }
  public void payLoan(double money) {//還款
    //三個(gè)判斷條件:1. 還款金額小于等于貸款金額  2.還款金額小于所剩余額 3.還款金額大于0
    
    if (super.getBalance() >= money && money <= super.getCeiling() && money >= 0) {
      super.setBalance(super.getBalance() - money); //更新余額
      super.setCeiling(super.getCeiling() - money);
      System.out.println(" 您現(xiàn)在的余額為" + super.getBalance());
      if (super.getCeiling() ==0) {
        System.out.println("您已經(jīng)全部還清?。≈x謝光臨!!");
      }else {
        
        System.out.println("您已經(jīng)還了" + money +"您還需要還" + super.getCeiling() );
      }
    }else {
      System.out.println("對(duì)不起,您的賬戶余額不足或者輸入的還款額度超出范圍!");
    }
    
  }
 
}

主界面測試函數(shù)

package Account;
 
import java.util.Scanner;
 
 
public class Text {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
 
    Bank b = new Bank();
    while (true) {
      b.mainView();//調(diào)用界面函數(shù)
      int select = sc.nextInt();
      switch(select) {
      case 1: b.openAccount();//創(chuàng)建賬戶
        break;
      case 2: b.enter();//登入
          break;  
      default: System.out.println("選擇業(yè)務(wù)異常,請重新選擇");
      break;
      }
      System.out.println("是否繼續(xù)選擇其他業(yè)務(wù)");
      System.out.println("退出請按  0");
      System.out.println("繼續(xù)選擇其他業(yè)務(wù)請按 1");
      select = sc.nextInt();
      if (select == 0) {
        break;
      }
    }
 
  }
 
}

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以上就是本文的全部內(nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持腳本之家。

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