book.java

java代码100例子

abstract class Item
{ String item_name;
  int item_price;//in USD
  protected abstract void displayDetails();
  public Item(String iname,int price)
   { item_name=iname;
	 item_price=price;
   }
  
};
 class Book extends Item
{   String author_name;
	 float seriesno;
	public Book(String iname,int price,String name,float serNo) 
	{ super(iname,price);
	 author_name=name;
	 seriesno=serNo;
	 
	
	 
	 }


public void displayDetails()
{
	 System.out.println("Book Name is:"+item_name);
	 System.out.println("Book price is:"+item_price);
	 System.out.println("Author Name is:"+author_name);
	 System.out.println("Series Number is:"+seriesno);
} 

public static void main(String args[])
 {
 	Book bookobj=new Book("Macbeth",10,"Shakeapeare",1.0f);
 	bookobj.displayDetails();
 }

}