ex1.java

讲述各种各样的java初始编程 了解编程

/*
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 * and open the template in the editor.
 */
package chenchao2;

import java.util.*;

/**
 *
 * @author qjxy
 */
public class Ex1 {

    Account testAccount;
    ArrayList<Log> log;
    Scanner sc = new Scanner(System.in);

    public Ex1() {
        log = new ArrayList<Log>();
        testAccount = new Account("0001", "Test", new Date(), "123456789111111111", 500, log);
    }

    public void doTest() {
        while (true) {
            printWelcome(testAccount);
            switch (operateChooser()) {
                case 1:
                    float amount1 = inputAmount();
                    testAccount.doTransaction(amount1, Log.OperateType.CREDIT);
                    break;
                case 2:
                    float amount2 = inputAmount();
                    testAccount.doTransaction(amount2, Log.OperateType.DEBIT);
                    break;
                default:
                    break;
            }
            sayBye();
        }
    }

    private void printWelcome(Account account) {
        System.out.println("******** Welcome to Test Bank System ********");
        System.out.println("* Your Account is:                          *");
        System.out.println(account.toString());
        System.out.println("*********************************************");
    }

    private int operateChooser() {
        System.out.println("******** Please Choose your Operation ********");
        System.out.println("* (1) CREDIT                     (2) DEBIT   *");
        System.out.println();
        int choose;
        while (true) {
            choose = sc.nextInt();
            if (choose > 2 || choose < 1) {
                System.out.println("* Error: only 1 or 2 can be input, plaease reinput!*");
            } else {
                break;
            }
        }
        return choose;
    }

    private float inputAmount() {
        System.out.println("******** Please Input the amount you want to operate ********");
        System.out.println();
        float amount = sc.nextFloat();
        return amount;
    }

    private void sayBye() {
        System.out.println("******** Thank you for choose our Service System ********");
        System.out.println(testAccount.toString());
        System.out.println("* Please input word [quit] to exit!                   *");
        String isQuit = sc.next();
        while (true) {
            if (isQuit.matches("quit")) {
                System.exit(0);
            } else {
                System.out.println("* You must input [quit] to exit!                           *");
            }
        }

    }

    public static void main(String[] args) {
        Ex1 test = new Ex1();
        test.doTest();
    }
}

class Account {

    private String number;
    private String name;
    private Date createDate;
    private String creditNo;
    private float balance;
    private ArrayList<Log> log;

    public Account(String number, String name, Date createDate, String creditNo, float balance, ArrayList<Log> log) {
        this.number = number;
        this.name = name;
        this.createDate = createDate;
        this.creditNo = creditNo;
        this.balance = balance;
        this.log = log;
    }

    public boolean doTransaction(float amount, Log.OperateType opType) {
        boolean isSuccess = false;
        float beforeOperate = this.getBalance();
        switch (opType) {
            case CREDIT:
                this.setBalance(beforeOperate + amount);
                Log o1 = new Log(this, opType, amount, new Date());
                log.add(o1);
                isSuccess = true;
                break;
            case DEBIT:
                this.setBalance(beforeOperate - amount);
                Log o2 = new Log(this, opType, amount, new Date());
                isSuccess = true;
                break;
            default:
                isSuccess = false;
        }
        return isSuccess;
    }

    public float getBalance() {
        return balance;
    }

    public void setBalance(float balance) {
        this.balance = balance;
    }

    public Date getCreateDate() {
        return createDate;
    }

    public void setCreateDate(Date createDate) {
        this.createDate = createDate;
    }

    public String getCreditNo() {
        return creditNo;
    }

    public void setCreditNo(String creditNo) {
        this.creditNo = creditNo;
    }

    public ArrayList<Log> getLog() {
        return log;
    }

    public void setLog(ArrayList<Log> log) {
        this.log = log;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getNumber() {
        return number;
    }

    public void setNumber(String number) {
        this.number = number;
    }

    @Override
    public String toString() {
        String s = new String();
        s = s + "账号：\t" + this.getNumber() + '\n';
        s = s + "户名：\t" + this.getName() + '\n';
        s = s + "余额：\t" + this.getBalance() + '\n';
        s = s + "创建日期：\t" + this.getCreateDate() + '\n';
        s = s + "身份证号：\t" + this.getCreditNo() + '\n';
        s = s + "操作日志：\t" + this.getLog() + '\n';
        return s;
    }
}

class Log {

    private Date operateDate;
    private float amount;
    private Account account;
    private OperateType operateType;

    enum OperateType {

        CREDIT, DEBIT
    }

    public Log(Account account, OperateType operateType, float amount, Date operateDate) {
        this.operateDate = operateDate;
        this.amount = amount;
        this.account = account;
        this.operateType = operateType;
    }

    public OperateType getOperateType() {
        return operateType;
    }

    public void setOperateType(OperateType operateType) {
        this.operateType = operateType;
    }

    public Account getAccount() {
        return account;
    }

    public void setAccount(Account account) {
        this.account = account;
    }

    public float getAmount() {
        return amount;
    }

    public void setAmount(float amount) {
        this.amount = amount;
    }

    public Date getOperateDate() {
        return operateDate;
    }

    public void setOperateDate(Date operateDate) {
        this.operateDate = operateDate;
    }

    @Override
    public String toString() {
        String s = new String();
        s = s + "操作金额：\t" + this.getAmount() + '\n';
        s = s + "操作类型：\t" + this.getOperateType() + '\n';
        s = s + "操作日期：\t" + this.getOperateDate() + '\n';
        return s;
    }
}