transaction.java

Java程序设计技巧与开发实例附书源代码。

public abstract class Transaction
{
   protected String descript;
   protected String type;
   protected double amount;

   public abstract double getAmount();

   public void showTransaction()
   {
      System.out.println("[ " + type + " ]\t" + getAmount() + "\t" + descript);
   }

   protected void getDataFor(String _type)
   {
      type = _type;
      System.out.print("\n=> Description for " + type + ": ");
      descript = Console.readString();
      System.out.print("=> Enter amount: $");
      amount = Console.readDouble();
   }
}