Java Program to display the fibonacci series based on the user input

import java.util.Scanner;
public class demo1 
{
 public static void main(String[] args) 
 {
  int count, num1 = 0, num2 = 1;
  System.out.println("How may numbers you want in the series:");
  Scanner input = new Scanner(System.in);
  count = input.nextInt();
  input.close();
  System.out.print("Fibonacci Series of "+count+" numbers:");

  int a=1;
  while(a<=count)
  {
   System.out.print(num1+" ");
   int sum = num1 + num2;
   num1 = num2;
   num2 = sum;
   a++;
  }
 }
}