Java/Others/FibToN.java at dev · primary-code-test/Java · GitHub

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package Others;

import java.util.Scanner;

/**

* Fibonacci sequence, and characterized by the fact that every number after the first two is the

* sum of the two preceding ones.

* <p>Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8, 13, 21,...

* <p>Source for the explanation: https://en.wikipedia.org/wiki/Fibonacci_number

public class FibToN {

public static void main(String[] args) {

// take input

Scanner scn = new Scanner(System.in);

int N = scn.nextInt();

// print all Fibonacci numbers that are smaller than your given input N

int first = 0, second = 1;

scn.close();

while (first <= N) {

// print first fibo 0 then add second fibo into it while updating second as well

System.out.println(first);

int next = first + second;

first = second;

second = next;

}