Thread: How do I connect 2 method headers to make it recursive???

When my main method asks for a number, I want that number to be the value of printArray(int a). So the number I enter will run off the script that the printArray method has.

A good website example would be nice. I keeping getting the n! = n * (n-1)! type of results but that's not exactly the type of recursion i am looking for.

 import java.util.*;
public class InputLoop 
{
    public static int printArray(int a)
    {
        if (a < 20 || a > 80) 
        {
            System.out.println("Error");
        }
        else if (a >= 20 && a <= 80) 
            System.out.println(a);
        return a;
    }
 
    public static void main(String[] args) 
    {
        Scanner number = new Scanner(System.in);
        System.out.println("Enter a number between 20 and 80");
        int a = number.nextInt();
    }
}

From my understanding of the question you want to read in a number between 20 and 80 and print out all integers between that number and 80.

-Your computer only executes code that is in the main method so unless you make a reference to the method printArray[] it will never execute that code.
-It would be possible to write this program recursively but it isn't necessary a simple while loop will do. However if you really want to do it recursively you will need to learn about recursion first.

This book: Javanotes 6.0 -- Title Page will give you the basics of recursion.

If you need any more help just ask.