nothing prints after runing code

hey guys. after running my code nothing comes out in the console for some reason (i have no errors)

here is my code (it's a method example by my lecturer that i'm looking over)

Code :

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import java.util.Random;
import java.util.Scanner;
 
public class Test
{
	public static void main(String[] args)
	{
		int[] avals = createArray();
		int[] bvals = createArray();
 
		fillArrayRandomValues(avals);
		printArray(avals, "AVals");
 
		fillArrayRandomValues(bvals);
		printArray(bvals, "BVals");
 
		int atotal = calculateTotals(avals);
		int btotal = calculateTotals(bvals);
 
		printAnalysis(atotal, btotal);
	}
 
	private static void printAnalysis(int atotal, int btotal)
	{
		if(atotal > btotal)
		{
			System.out.println("A is greater than B");			
		}
		else if(btotal > atotal)
		{
			System.out.println("B is greater than A");
		}
		else
		{
			System.out.println("A is equal to B");
		}
	}
 
	private static int calculateTotals(int[] vals)
	{		
		int total = 0;
		for(int i = 0; i < vals.length; i++)
		{
			total = total + vals[i];
		}		
		return total;
	}
 
	private static void printArray(int[] vals, String title)
	{
		System.out.print(title + ":\t");
		for(int i = 0; i < vals.length; i++)
		{
			System.out.print(vals[i] + "\t");
		}		
	}
 
	private static void fillArrayRandomValues(int[] vals)
	{
		Random r = new Random();
		for(int i = 0; i < vals.length; i++)
		{
			vals[i] = r.nextInt(1000);
		}
	}
 
	public static int[] createArray()
	{
		Scanner input = new Scanner(System.in);
		int size = input.nextInt();
		int[] vals = new int[size];
		return vals;			
	}
}

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anyone know why it is not printing anything out in the console?

thanks in advance

Code java:

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int size = input.nextInt();

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Here you are asking for input from the user, so when you run the program, input a number twice (you call createArray() twice) and it should display something for you.

i don't know how i didn't realise that. thanks a lot mate! i'm used to having the console asking me for input first :D