Fibo

import java.util.*;
public class Fibo {
    public static void main(String args[])
    {
        int a = -1, b = 1,c;
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a no : ");
        int n = sc.nextInt();
        for(int i = 1; i<= n; i++)
        {
            c = a + b;
            System.out.print(c + " ");
            a = b;
            b = c;
        }
    }

}