Notes

public class CrunchifyFibonacci {

@SuppressWarnings("resource")
public static void main(String args[]) {

// input to print Fibonacci series upto how many numbers
log("Enter number upto which Fibonacci series to print: ");
int number = new Scanner(System.in).nextInt();

log("nUsing Method-1: Using Recursion. Provided Number: " + number);
// printing Fibonacci series upto number
for (int i = 1; i <= number; i++) {
log(fibonacciRecusion(i) + " ");
}

log("nMethod-2: Fibonacci number at location " + number + " is ==> " + (fibonacciLoop(number) + ""));

}

// Method-2: Java program for Fibonacci number using Loop.
public static int fibonacciLoop(int number) {
if (number == 1 || number == 2) {
return 1;
}
int fibo1 = 1, fibo2 = 1, fibonacci = 1;
for (int i = 3; i <= number; i++) {
fibonacci = fibo1 + fibo2; // Fibonacci number is sum of previous two Fibonacci number
fibo1 = fibo2;
fibo2 = fibonacci;

}
return fibonacci; // Fibonacci number
}

private static void log(String number) {
System.out.println(number);

}

}