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  1. import java.io.*;
  2. import java.util.*;
  3. class Ideone {
  4. 	public static void main(String[] args) {
  5. 		Scanner scan = new Scanner(System.in);
  6. 		String exp=scan.nextLine(); //System.out.println(exp);
  7. 		int campuran=-1,pecahan=-1, desimal=-1;
  8. 		for(int i=0; i<exp.length(); i++) { //System.out.println(exp.substring(i,i+1));
  9. 			if(exp.substring(i,i+1).equals(" ")) campuran=i;
  10. 			if(exp.substring(i,i+1).equals("/")) pecahan=i;
  11. 			if(exp.substring(i,i+1).equals(".")) desimal=i;
  12. 		} //System.out.printf("%d %d\n",campuran, pecahan);
  13. 		if(campuran>-1) {
  14. 			int x = Integer.parseInt(exp.substring(0,campuran));
  15. 			int y = Integer.parseInt(exp.substring(campuran+1,pecahan));
  16. 			int z = Integer.parseInt(exp.substring(pecahan+1,exp.length()));
  17. 			int gcd = gcd(y,z);
  18. 			y/=gcd;
  19. 			z/=gcd;
  20. 			double hasil = (double) x+(double)y/z;
  21. 			System.out.println("Desimal: " + hasil);
  22. 			System.out.printf("Pecahan campuran: %d %d/%d\n",x, y, z);
  23. 			System.out.printf("Pecahan: %d/%d\n", x*z+y, z);
  24. 		} else if(pecahan>-1) {
  25. 			int y = Integer.parseInt(exp.substring(0,pecahan));
  26. 			int z = Integer.parseInt(exp.substring(pecahan+1,exp.length()));
  27. 			int gcd = gcd(y,z);
  28. 			y/=gcd;
  29. 			z/=gcd;
  30. 			double hasil = (double)y/z;
  31. 			System.out.println("Desimal: " + hasil);
  32. 			if(y%z==0) {
  33. 				System.out.println("Pecahan campuran: " + hasil);
  34. 				System.out.println("Pecahan: " + hasil);
  35. 			} else {
  36. 				if(y/z==0) System.out.printf("Pecahan campuran: %d/%d\n", y%z, z);
  37. 				else System.out.printf("Pecahan campuran: %d %d/%d\n", y/z, y%z, z);
  38. 				System.out.printf("Pecahan: %d/%d\n", y%z, z);
  39. 			}
  40. 		} else if(desimal>-1) {
  41. 			double x= Double.parseDouble(exp);
  42. 			int y = Integer.parseInt(exp.substring(0,desimal));
  43. 			int z = Integer.parseInt(exp.substring(desimal+1,exp.length()));
  44. 			int numerator = Integer.parseInt(exp.substring(0,desimal)+exp.substring(desimal+1,exp.length()));
  45. 			int denominator = (int) Math.pow(10, exp.length()-desimal-1); //System.out.println(numerator + " " + denominator);
  46. 			int gcd = gcd(numerator, denominator);
  47. 			numerator /= gcd;
  48. 			denominator /= gcd;
  49. 			System.out.println("Desimal: " + x);
  50. 			if (numerator / denominator == 0) System.out.printf("Pecahan campuran: %d/%d\n", numerator, denominator);
  51. 			else System.out.printf("Pecahan campuran: %d %d/%d\n", numerator / denominator, numerator % denominator,denominator);
  52. 			System.out.printf("Pecahan: %d/%d\n", numerator, denominator);
  53. 		} else {
  54. 			System.out.println("Desimal: 0");
  55. 			System.out.println("Pecahan campuran: 0");
  56. 			System.out.println("Pecahan: 0");
  57. 		}
  58. 	}
  59. 	static int gcd (int a, int b) {
  60. 		if(b==0) return a;
  61. 		else return gcd(b, a%b);
  62. 	}
  63. }
  64.  
Success #stdin #stdout 0.16s 58980KB
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stdin
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30 3/6
stdout
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Desimal: 30.5
Pecahan campuran: 30 1/2
Pecahan: 61/2
https://ideone.com/XMGHwp
desimal/pecahan
language:
Java (HotSpot 12)
created:
3 days ago
visibility:
public

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