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  1. import java.util.*;
  2. import java.io.*;
  3.  
  4. class Ideone
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8.         float x, y;
  9.  
  10.         try(Scanner input = new Scanner(System.in)) {
  11.         	System.out.println("Digite o valor de x: ");
  12.  
  13.         	try{
  14.         		x = input.nextFloat();
  15.  
  16.         		y = (x - ((x* (x - 1)) / (2* x)));
  17.         		System.out.println("valor calculado por F(x): " + y);
  18.  
  19.         	} catch (InputMismatchException err) {
  20.         		System.out.println("Erro! O valor digitado não é válido. Tente novamente!");
  21.         		// err.printStackTrace();
  22.         	}
  23.         }
  24. 	}
  25. }
Success #stdin #stdout 0.06s 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/V0tBKy
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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