Java工具集-数学(立方体操作工具类)

package *;

import java.text.DecimalFormat;

/**
 * @program: simple_tools
 * @description: 立方体操作工具类
 * @author: ChenWenLong
 * @create: 2019-06-03 16:58
 **/
public class CuboidUtils {

    public static final DecimalFormat ROUNDING_OFF = new DecimalFormat("#.00");

    /**
     * 功能描述:
     * 〈获取四舍五入的结果值,并且取得绝对值,解决负数情况〉
     *
     * @params : [value]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 15:50
     */
    public static double roundValue(double value){
        return Math.abs(Double.valueOf(ROUNDING_OFF.format(value)));
    }

    /**
     * 功能描述:
     * 〈判断是否是立方体〉
     *
     * @params : [length, wideth, highth]
     * @return : boolean
     * @author : cwl
     * @date : 2019/6/3 17:01
     */
    public static boolean isCuboid(double length,double wideth,double highth){
        if(length == 0 || wideth == 0 || highth == 0){
            return false;
        }
        return true;
    }

    /**
     * 功能描述:
     * 〈获取立方体周长,长宽高各不相同情况〉
     *
     * @params : [length, wideth, highth]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:00
     */
    public static double getPerimeter(double length,double wideth,double highth){
        if(isCuboid(length,wideth,highth)){
            return roundValue(4*(highth+length+wideth));
        }
        return 0;
    }

    /**
     * 功能描述:
     * 〈获取立方体周长,有两面是正方形情况〉
     *
     * @params : [side, highth]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:05
     */
    public static double getPerimeter(double side,double highth){
        if(side == 0 || highth == 0){
            throw new IllegalArgumentException("This isn't Cuboid");
        }
        return roundValue(side*8+highth*4);
    }

    /**
     * 功能描述:
     * 〈获取正方体周长〉
     *
     * @params : [side]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:26
     */
    public static double getPerimeter(double side){
        return roundValue(side*12);
    }

    /**
     * 功能描述:
     * 〈获取立方体的面积〉
     *
     * @params : [length, wideth, highth]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:27
     */
    public static double getArea(double length,double wideth,double highth){
        if(isCuboid(length,wideth,highth)){
            double xArea = length * wideth * 2;
            double yArea = length * highth * 2;
            double zArea = wideth * highth * 2;
            return roundValue(xArea + yArea + zArea);
        }
        return 0;
    }

    /**
     * 功能描述:
     * 〈获取立方体面积,有两面是正方形情况〉
     *
     * @params : [side, highth]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:30
     */
    public static double getArea(double side,double highth){
        if(side == 0 || highth == 0){
            throw new IllegalArgumentException("This isn't Cuboid");
        }
        double result = side * side * 2 + side * highth * 4;
        return roundValue(result);
    }

    /**
     * 功能描述:
     * 〈获取正方体面积〉
     *
     * @params : [side, highth]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:30
     */
    public static double getArea(double side){
        return roundValue(side*side*6);
    }

    /**
     * 功能描述:
     * 〈获取立方体体积〉
     *
     * @params : [length, wideth, highth]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:35
     */
    public static double getVolume(double length,double wideth,double highth){
        return roundValue(length*wideth*highth);
    }

    /**
     * 功能描述:
     * 〈获取立方体体积,有两面是正方形情况〉
     *
     * @params : [side, highth]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:36
     */
    public static double getVolume(double side,double highth){
        return roundValue(side*side*highth);
    }

    /**
     * 功能描述:
     * 〈获取正方体体积〉
     *
     * @params : [side]
     * @return : double
     * @author : cwl
     * @date : 2019/6/3 17:36
     */
    public static double getVolume(double side){
        return roundValue(side*side*side);
    }


}