Simple program written in Java to calculate n-th element of fibonacci squence.

import java.util.Scanner;

// ? 2017 TheFlyingKeyboard 
// theflyingkeyboard.net

public class Fibonacci {
  public static void main(String []args) {
    Scanner reader = new Scanner(System.in);
    int n; 	
    
    System.out.println("Enter a number: ");
    n = reader.nextInt(); //Reads integer from keyboard			
    
    System.out.println("Fibonacci of: " + n + " is equal to: " + fibonacci(n));
  }
  
  public static int fibonacci(int n){
    int fib = 0;
    int fibPrev1 = 1;
    int fibPrev2 = 0;
    
    for(int i = 2; i <= n; i++){
      fib = fibPrev1 + fibPrev2;
      fibPrev2 = fibPrev1;
      fibPrev1 = fib;
    }
    
    return fib;
  }
}

 



Java Int Fibonacci
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