将英尺和英寸转换为厘米和反之亦然的奇怪问题 [英] Strange issue in converting Feet and Inches to Centimeter and Vice Versa

问题描述

public static double convertFeetandInchesToCentimeter(String feet, String inches) {
    double heightInFeet = 0;
    double heightInInches = 0;
    try {
        if (feet != null && feet.trim().length() != 0) {
            heightInFeet = Double.parseDouble(feet);
        }
        if (inches != null && inches.trim().length() != 0) {
            heightInInches = Double.parseDouble(inches);
        }
    } catch (NumberFormatException nfe) {

    }
    return (heightInFeet * 30.48) + (heightInInches * 2.54);
}

以上是将Feet和Inches转换为Centimeter.Below的功能。将厘米转换回英尺和英寸。

Above is the function for converting Feet and Inches to Centimeter.Below is the function for converting Centimeter back to Feet and Inches.

public static String convertCentimeterToHeight(double d) {
    int feetPart = 0;
    int inchesPart = 0;
    if (String.valueOf(d) != null && String.valueOf(d).trim().length() != 0) {
        feetPart = (int) Math.floor((d / 2.54) / 12);
        inchesPart = (int) Math.ceil((d / 2.54) - (feetPart * 12));
    }
    return String.format("%d' %d''", feetPart, inchesPart);
}

当我输入正常值（例如）时出现问题5英尺和6英寸，它完美地转换为厘米，并再次转换回5英尺和6英寸。

I have a problem when i enter normal values like 5 Feet and 6 Inches, its converting perfectly to centimeter and again it gets converted back to 5 Feet and 6 Inches.

问题是我转换1英尺和1英寸或2英尺和2美元b $ b英寸，它被转换回1英尺2英寸和2英尺3美元b $ b英寸。

The Problem is when i convert 1 Feet and 1 inches or 2 Feet and 2 inches, its getting converted back to 1 Feet 2 inches and 2 Feet 3 inches.

推荐答案

我相信：

inchesPart = (int) Math.ceil((d / 2.54) - (feetPart * 12));

应该是：

inchesPart = (int) Math.floor((d / 2.54) - (feetPart * 12));

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