Question

我已经测试了数字，并且它们保持正确的值，但它打印出的结果完全错误。 E.X：如果我把2/4，它输出1

这是我的代码：

import java.util.Scanner;

public class FractionConverter {
    public static void main(String[] args) {

        System.out.println("Welcome To The JEM Fraction Converter!\n");

        Scanner sc = new Scanner(System.in);
        String num = "0", choice;

        System.out.println("Would You Like To Convert From 'Fraction - Decimal'(a) or 'Decimal - Fraction'(b)?");
        choice = sc.nextLine();

        if (choice.equalsIgnoreCase("a")) {

            System.out.println("Please Enter A Fraction (x/y)");
            num = sc.nextLine();

        String[] parts = num.split("/");

        String numerator = parts[0];

        String denominator = parts[1];

        double result = Double.parseDouble(numerator);
        double result2 = Double.parseDouble(numerator);

        System.out.println("\n" + numerator + "/" + denominator + " In Decimal Form Is: " + (result/result2));

        }

    }
}

感谢帮助！

Answer 1

替换此行：

CXX = g++-5
CXXFLAGS = -std=c++11 -Wno-unknown-pragmas
INCLUDES = -lsfml-graphics -lsfml-audio -lsfml-window -lsfml-system -L/home/me/ogre_install/lib/OGRE/ -I/home/me/ogre_install/include/OGRE/ -L/home/me/ogre_install/lib/ -I/home/me/ogre_install/include/ -lOgreMain -lOgreOverlay -lOgreHlmsPbs -lOgreHlmsUnlit

all:
    $(CXX) $(CXXFLAGS) $(INCLUDES) -o bin/a.out src/*

用这个：

double result2 = Double.parseDouble(numerator);

Answer 2

    double result = Double.parseDouble(numerator);
    double result2 = Double.parseDouble(numerator);

......我想是复制/粘贴问题，不是吗？（两次分子）

将分数转换为十进制转换器的问题

2 个答案: