bbook.java

第四次作业 1、 创建一个Animal（动物）类

public class BBook implements BookCount {
	private double account;
	private double price;
	
	
	BBook(double account,double price){
		this.account = account;
		this.price = price;
	}

	@Override
	public double getBookPrice() {
		return account*price;
	}
	
	public double getPrice(){
		return price;
	}
	
	public double getAccount(){
		return account;
	}

}