用java编写圆锥_geometric 1）编写一个Java应用程序， 1）该 中有3个类：Triangle、Circle和cone，分别用来 Develop 238万源代码下载- www.pudn....

以下是一个简单的Java应用程序，包括三个类Triangle、Circle和Cone，用于计算圆锥的体积。

Triangle.java

public class Triangle {
    private double base;
    private double height;

    public Triangle(double base, double height) {
        this.base = base;
        this.height = height;
    }

    public double getArea() {
        return 0.5 * base * height;
    }
}

Circle.java

public class Circle {
    private double radius;

    public Circle(double radius) {
        this.radius = radius;
    }

    public double getArea() {
        return Math.PI * radius * radius;
    }
}

Cone.java

public class Cone {
    private Circle base;
    private Triangle side;

    public Cone(Circle base, Triangle side) {
        this.base = base;
        this.side = side;
    }

    public double getVolume() {
        return (1.0/3.0) * base.getArea() * side.getArea();
    }
}

使用这些类来计算圆锥的体积，您可以按照下面的代码进行操作：

public class Main {
    public static void main(String[] args) {
        Circle circle = new Circle(5.0);
        Triangle triangle = new Triangle(10.0, 8.0);
        Cone cone = new Cone(circle, triangle);
        double volume = cone.getVolume();
        System.out.println("The volume of the cone is: " + volume);
    }
}

在这个例子中，我们创建了一个半径为5的圆和一个底部为这个圆的三角形，然后将它们传递给圆锥类来计算体积。输出将是：

The volume of the cone is: 261.7993877991494