juice.java

大学java作业源程序

package problem_11_2;
//Juice.java
//果汁类，继承水类
public class Juice extends Water{
	private double sugarAmount;		//含糖量
	private double vitaminAmount;	//含维生素量
	private double totalWeight;		//总重量
	private double sugarRate;		//含糖率
	private double vitaminRate;		//含维生素率
	
	//无水果构造函数
	public Juice(double totalWeight){
		super(0);
		sugarAmount = 0;
		vitaminAmount = 0;
		this.totalWeight = totalWeight;
		sugarRate = 0;
		vitaminRate = 0;
	}
	
	//一种水果构造函数
	public Juice(double totalWeight, Fruit fruit){
		super(totalWeight - fruit.getWeight());
		sugarAmount = fruit.getSugarAmount();
		vitaminAmount = fruit.getVitaminAmount();
		this.totalWeight = totalWeight;
		sugarRate = sugarAmount / this.totalWeight;
		vitaminRate = vitaminAmount / this.totalWeight;
	}
	
	//两种水果构造函数
	public Juice(double totalWeight, Fruit fruit1, Fruit fruit2){
		super(totalWeight - fruit1.getWeight() - fruit2.getWeight());
		sugarAmount = fruit1.getSugarAmount() + fruit2.getSugarAmount();
		vitaminAmount = fruit1.getVitaminAmount() + fruit2.getVitaminAmount();
		this.totalWeight = totalWeight;
		sugarRate = sugarAmount / this.totalWeight;
		vitaminRate = vitaminAmount / this.totalWeight;
	}
	
	//三种水果构造函数
	public Juice(double totalWeight, Fruit fruit1, Fruit fruit2, Fruit fruit3){
		super(totalWeight - fruit1.getWeight() - fruit2.getWeight() - fruit3.getWeight());
		sugarAmount = fruit1.getSugarAmount() + fruit2.getSugarAmount() + fruit3.getSugarAmount();
		vitaminAmount = fruit1.getVitaminAmount() + fruit2.getVitaminAmount() + fruit3.getVitaminAmount();
		this.totalWeight = totalWeight;
		sugarRate = sugarAmount / this.totalWeight;
		vitaminRate = vitaminAmount / this.totalWeight;
	}
	
	//返回总重量
	public double getTotalWeight(){
		return totalWeight;
	}
	
	//返回含糖量
	public double getSugarAmount(){
		return sugarAmount;
	}
	
	//返回含维生素量
	public double getVitaminAmount(){
		return vitaminAmount;
	}
	
	//返回含糖率
	public double getSugarRate(){
		return sugarRate;
	}
	
	//返回含维生素率
	public double getVitaminRate(){
		return vitaminRate;
	}
}