java - 代码检查不让我通过

Question

嘿，我有一个代码发出错误。不知道为什么以及如何。但是有人可以帮我解决这个问题吗？

错误:

/tmp/codecheck.rA4OvRYwJM/InterfaceTester.java:6: error: constructor Sphere in class Sphere cannot be applied to given types;

   GeometricSolid shape = new Sphere(10);
                          ^   required: no arguments   found: int  

reason: actual and formal argument lists differ in length

/tmp/codecheck.rA4OvRYwJM/InterfaceTester.java:10: error: constructor

Sphere in class Sphere cannot be applied to given types;

   shape = new Sphere(1);
           ^   required: no arguments   found: int 

reason: actual and formal argument lists differ in length 2 errors

这是我的代码和 codecheck http://www.codecheck.it/files/18040616263h5pl4lvxfmzj6u9w7xty4dfu 的链接

 /**
 * Write a description of class asdasdasd here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public interface GeometricSolid
{
    public double volume();

}

import java.util.*;
public class Sphere implements GeometricSolid
{
double radius;
    /**
     * Gets the volume of sphere
     * @return volume volume of sphere
     */
    public double volume()
    {
        double volume = 4.0 * Math.PI * Math.pow(this.radius, 3) / 3.0;
        return volume;
    }

    /**
     * Get radius of sphere
     * @return the radius of sphere
     */
    public double getRadius()
    {
        return radius;
    }
    /**
     * set radius for sphere
     * @param newRadius of a sphere
     */
    public void setRadius(int newRadius)
    {
        radius = newRadius;
    }
}

Answer 1

您必须向 Sphere 类添加一个构造函数，该构造函数将半径作为参数并将其传递给变量。
例如:

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