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  1. import java.util.*;
  2. import java.io.*;
  3. import java.text.NumberFormat;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9.         float x, y;
  10.  
  11.         NumberFormat nformat = NumberFormat.getInstance(Locale.GERMAN);
  12.         Scanner input = new Scanner(System.in);
  13.  
  14.         System.out.println("Digite o valor de x: ");
  15.  
  16.         try {
  17.         	x = input.nextFloat();
  18.         } catch (InputMismatchException err) {
  19.         	x = nformat.parse(input.nextLine()).floatValue();
  20.         	// err.printStackTrace();
  21.         }
  22.  
  23.         y = (x - ((x* (x - 1)) / (2* x)));
  24.  
  25.         System.out.println("valor calculado por F(x): " + y);
  26.         input.close();
  27. 	}
  28. }
Success #stdin #stdout 0.07s 321344KB
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stdin
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0.2
stdout
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Digite o valor de x: 
valor calculado por F(x): 0.6
https://ideone.com/AunxR6
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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