Question

Using a while loop. Write a JAVA program that asks a user for an integer between 1 and 9. Using the user input, print out the Fibonaccci series that contains that number of terms.

Sample output:

How many terms would like printed out for the Fibonacci Sequence?

7

Fibonacci Series of 7 numbers:

0 1 1 2 3 5 8

Answer 1

//TestCode.java
import java.util.Scanner;

public class TestCode {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        System.out.println("How many terms would like printed out for the Fibonacci Sequence?");
        int n = scan.nextInt();

        System.out.println("Fibonacci Series of "+n+" numbers:");
        if(n>=1){
            System.out.print(0+" ");
        }
        if(n>=2){
            System.out.print(1+" ");
        }
        if(n>=3) {
            int x = 0, y = 1, z;
            for (int i = 2; i < n; i++) {
                z = x + y;
                x = y;
                y = z;
                System.out.print(z+" ");
            }
            System.out.println();
        }
    }
}