bankaccount2.java

Java与面向对象程序设计实验教学讲义.复数类的实现,复数类的复杂运算,身份证号码的分析,图形界面设计

public class BankAccount2 {
    private static int LAST_ACCOUNT_NUMBER = 0;
    private int accountNumber;
    private String ownerName;
    private float balance;
    public BankAccount2()
    {
        this("", 0);
    }
    public BankAccount2(String initName)
    {
        this(initName, 0);
    }
    public BankAccount2(String initName, float initBal)
    {
        ownerName = initName;
        accountNumber = ++LAST_ACCOUNT_NUMBER;
        balance = initBal;
    }
    public static BankAccount2 example1()
    {
        BankAccount2 ba = new BankAccount2();
        ba.setOwnerName("LiHong");
        ba.deposit(1000);
        return ba;
    }
    public static BankAccount2 example2()
    {
        BankAccount2 ba = new BankAccount2();
        ba.setOwnerName("ZhaoWei");
        ba.deposit(1000);
        ba.deposit(2000);
        return ba;
    }
    public static BankAccount2 emptyAccountExample()
    {
        BankAccount2 ba = new BankAccount2();
        ba.setOwnerName("HeLi");
        return ba;
    }
    public int getAccountNumber()
    {
        return accountNumber;
    }
    public String getOwnerName()
    {
        return ownerName;
    }
    public float getBalance()
    {
        return balance;
    }
    public void setOwnerName(String aName)
    {
        ownerName = aName;
    }
    public String toString()
    {
        return("Account #" + new java.text.DecimalFormat("000000").format(accountNumber) + " with balance " +
               new java.text.DecimalFormat("$0.00").format(balance));
    }
    public float deposit(float anAmount)
    {
        balance += anAmount;
        return balance;
    }
    public float withdraw(float anAmount)
    {
        if (anAmount <= balance)
            balance -= anAmount;
        return anAmount;
    }
}