public class Cone { Shape shape; double H; String Name; Cone(double H,String Name){ this.H = H; this.Name = Name; } public double V() { return (shape.area()*H)*1/3; } }
时间: 2024-02-02 15:02:26 浏览: 15
这段代码中,Cone类的构造函数有两个参数,分别是H和Name。H代表圆锥的高度,Name代表圆锥的名称。Cone类中还有一个方法V(),用于计算圆锥的体积。在该方法中,通过调用shape对象的area()方法计算圆锥的底面积,然后再乘以高度H和1/3,最终得到圆锥的体积。但是该代码中并没有实例化shape对象,因此该代码无法运行。
相关问题
Nick name for API level 31 is Snow Cone.
As an AI language model, I don't have access to the official nickname for API level 31. However, Snow Cone seems like a creative and catchy nickname for it!
如何在surfaceMeanSize中调用Cone方法中的radius?public class Cone extends GraphicObject{ public Cone(ObjectColor color, double radius, double length) { } @Override public double surfaceMeanSize() { return Math.PI * () } @Override public double volume() { return 0; }
您可以将Cone类中的radius作为属性保存,并将其传递给surfaceMeanSize()方法。在这种情况下,您可以使用以下代码:
public class Cone extends GraphicObject{
private double radius;
private double length;
public Cone(ObjectColor color, double radius, double length) {
this.radius = radius;
this.length = length;
}
@Override
public double surfaceMeanSize() {
double slantHeight = Math.sqrt(Math.pow(radius, 2) + Math.pow(length, 2));
return Math.PI * radius * slantHeight;
}
@Override
public double volume() {
return 0;
}
}
在这个例子中,我们使用了Cone类的构造函数来设置radius和length属性,并在surfaceMeanSize()方法中使用它们计算圆锥的表面积。