java 方法：金字塔体积
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Methods: Pyramid Volume
提问by java2019
This is my task that I have to do:
这是我必须完成的任务：
Define a method pyramidVolume with double parameters baseLength, baseWidth, and pyramidHeight, that returns as a double the volume of a pyramid with a rectangular base.
定义一个带有双参数 baseLength、baseWidth 和 pyramidHeight 的方法 pyramidVolume，该方法返回具有矩形底部的金字塔体积的两倍。
Here is my code:
这是我的代码：
import java.util.Scanner;
public class CalcPyramidVolume {
public static void pyramidVolume (double baseLength, double baseWidth, double pyramidHeight) {
baseLength = 1.0;
baseWidth = 1.0;
pyramidHeight = 1.0;
double pyramidVolume = ((baseLength * baseWidth) * pyramidHeight) / 3;
}
public static void main (String [] args) {
System.out.println("Volume for 1.0, 1.0, 1.0 is: " + pyramidVolume(1.0, 1.0, 1.0));
return;
}
}
I can edit only the section of code where I created the pyramidVolume method call. I am getting an error that says 'void' type not allowed here and it is pointing the to system.out line which i can not edit. I am very confused on why it is giving me an error on that line.
我只能编辑我创建了 pyramidVolume 方法调用的代码部分。我收到一个错误，指出此处不允许使用“void”类型，它指向我无法编辑的 system.out 行。我很困惑为什么它会在那条线上给我一个错误。
回答by Sanj
pyramidVolumereturn type is void. Change return type to doubleas below:
pyramidVolume返回类型是void.将返回类型更改double为如下：
public static double pyramidVolume (double baseLength, double baseWidth, double pyramidHeight) {
double pyramidVolume = ((baseLength * baseWidth) * pyramidHeight) / 3;
return pyramidVolume;
}
