import java.util.Scanner;

public class Test{
	
	public static void main (String[]args){
		Scanner in=new Scanner(System.in);
		//System.out.println("Inserisci l'n-mo numero di Fibonacci che vuoi calcolare\nn= ");
		System.out.println("Witch Fibonacci's number do you want calcolate: ");
		int n;
		n=in.nextInt();
		
		Fibonacci fib=new Fibonacci(n);
		System.out.println("Fibonacci's("+n+")= "+fib.calcolate(n));
		

	}
}

@@ -310,17 +310,86 @@
 nt();%0A%09%09
-%0A
+if(n%3C0)%7B%0A%09%09%09System.out.println(%22Insert a positive number%22);%0A%09%09%7Delse%7B%0A%09
 %09%09Fibona
@@ -414,16 +414,17 @@
 cci(n);%0A
+%09
 %09%09System
@@ -480,15 +480,16 @@
 (n));%0A%09%09
+%7D
 %0A%0A%09%7D%0A%7D%0A

Update Test.java