System.out.println("差价\t\t\t\t\t

public class Test //创建一个Test类
{
public static void main(String[] args)
{
Fruit fruit = new Fruit(); //创建fruit对象
fruit.setName("苹果"); //初始化“水果名称”
fruit.setPrice(1.98f); //初始化“水果价格”
fruit.setWeight(5.0f); //初始化“水果重量”
PackagedFruit packagedFruit = new PackagedFruit(); //创建packagedFruit对象
packagedFruit.setName("精装苹果"); //初始化“精装水果的名称”
packagedFruit.setPrice(2.98f); //初始化“精装水果的价格”
packagedFruit.setWeight(5.0f); //初始化“精装水果的重量”
packagedFruit.setPackagesfee(((float)packagedFruit.getPrice() - (float)fruit.getPrice())); ///初始化“精装水果的包装费”
System.out.println("水果名称\t水果价格(元/千克)\t水果重量(千克)\t包装费(元/千克)\t总价"); //提示信息
System.out.println("——————————————————————————————————————————————————————————————"); //分割线
System.out.println(fruit.getName() + "\t" + fruit.getPrice() + "\t\t" + fruit.getWeight() + "\t"
+ "\t" + "0.0" + "\t\t" + fruit.getPrice() * fruit.getWeight()); //输出结果
System.out.println(packagedFruit.getName() + "\t" + packagedFruit.getPrice() + "\t\t" + packagedFruit.getWeight()
+ "\t\t" + packagedFruit.getPackagesfee() + "\t\t"
+ packagedFruit.getPrice() * packagedFruit.getWeight()); //输出结果
System.out.println("——————————————————————————————————————————————————————————————"); //分割线
System.out.println("差价\t\t\t\t\t\t\t"
+ (packagedFruit.getPrice() * packagedFruit.getWeight() - fruit.getPrice() * fruit.getWeight())); //输出结果
}
}