Fibonacci.txt

import java.util.Scanner;
public class Fibonacci 
	{

       public static void main(String[] args) 
		{
		  int n, f1 = 0, f2 = 1;
        	  Scanner sc=new Scanner(System.in);
            System.out.println("How many Fibonacci terms do you want?");
            n=sc.nextInt();
            System.out.print("First " + n + " Fibonacci  terms: ");

            for (int i = 1; i <= n; ++i)
             {
              System.out.print(f1+" ");
              int sum = f1 + f2;
              f1 = f2;
              f2 = sum;
             }
          }
     }
	

$javac Fibonacci.java
$java Fibonacci
Output
How many Fibonacci terms do you want?
10
First 10 Fibonacci  terms: 0 1 1 2 3 5 8 13 21 34