자바의 십진법 변환기에서 내 소수점 이하 자릿수를 알아 내고 싶습니다.

Question

나는 프로젝트를 수행하고 있으며 소수점부터 소수점까지 내 변환기에 어떤 문제가 있는지 알고 싶습니다. 그리고 그것은 방법으로 끝나야합니다. 대신 코드로,

import java.util.*; 

    public class Fraction { 
      method(); 

     } 
    public void method() { 
      Scanner sc = new Scanner (System.in); 

      System.out.println("Please enter the numerator: "); 
      double numerator = sc.nextInt(); 
      System.out.println("Please enter the Denominator: "); 
      double denominator = sc.nextInt(); 
      if (denominator == 0) { 
       System.out.println("Can't divide by zero"); 
      } 
      else { 
       double fraction = (double)numerator/denominator; 
       System.out.println(fraction); 
      } 
    } 

이 시도 :

import java.util.Scanner; 

public class Fraction 
{ 
    public static void main(String args[]) 
    { 
     Scanner input = new Scanner(System.in); 

     int numerator, int denominator, result; 
     System.out.println ("Please enter the numerator: "); 
     num = input.nextInt(); 
     System.out.println ("Please enter the denominator: "); 
     den = input.nextInt(); 
     result = double(numerator/denominator); 
    } 

    public static int double(int x) 
    { 
     if (denominator == 0){ 
      System.out.println ("Can't divide by zero"); 
     } 
     else { 
      double fraction = (double)numerator/denominator; 
      System.out.println(fraction); 
     } 
    } 
} 

Answer 1

이 작동합니다 : 당신이 얻고있는 결과가

public static void main(String args[]) 
{ 
    Scanner input = new Scanner(System.in); 

    int num, den; 
    System.out.println ("Please enter the numerator: "); 
    num = input.nextInt(); 
    System.out.println ("Please enter the denominator: "); 
    den = input.nextInt(); 
    if (den != 0){ 
    System.out.println ("Decimal is " + convert (num, den)); 
    } 
    else 
    System.out.println ("Cant divide by zero");  

} 

public static double convert(int x, int y) 
{   
     return ((double)x/y);   
} 

Answer 2

이 시도

import java.util.Scanner; 

public class Fraction 
{ 
    public static void main(String args[]) 
    { 
     Scanner input = new Scanner(System.in); 

     int numerator, int denominator, result; 
     System.out.println ("Please enter the numerator: "); 
     num = input.nextInt(); 
     System.out.println ("Please enter the denominator: "); 
     den = input.nextInt(); 
     result = double(numerator/denominator); 
    } 

    public static int doublenumber(int x) // you can't use double only because it is reserved word in java. 
    { 
     if (denominator == 0){ 
      System.out.println ("Can't divide by zero"); 
     } 
     else { 
      double fraction = (double)numerator/denominator; 
      System.out.println(fraction); 
     } 
    } 
}