transaction.java

JAVA的银行系统。采用java语言编写。有简单的功能

package Bank;
	//Define  the Transaction 帐户上的事务处理

class Transaction {
	//Transaction Types
    public static final int DEBIT = 0;		//借款
    public static final int CREDIT = 1;		//存款
    public static String[] types = {"Debit","Credit"};

	//Constructor	构造方法
    public Transaction(Account account, int transactionType,int amount){
		this.account = account;
		this.transactionType = transactionType;
		this.amount = amount;
    }

    public Account getAccount(){
    	return account;
    }

    public int getTransactionType(){
    	return transactionType;
    }

    public int getAmount(){
    	return amount;
    }

    public String toString(){
    	return types[transactionType] + "A//c:" + ": $" + amount;
    }

    private Account account;		//定义账户
    private int amount;				//交易数额
    private int transactionType;	//业务类型
    
    /*
     *原理：
	 *事务类型有transactionType属性指定，该字段的值必须是为事务类型而定义的值之一
	 *acount指明了交易的帐户，而amount指明了交易的数额
	 *一个Transaction对象指定了一个完整的交易。
	 *方法只有getAmount和toString方法
     */
}