How come when a user guesses a random number... they have to guess it twice to be caught?

import java.util.Scanner;

public class GuessingGame {
    public static void main(String[] args) {
      System.out.println("ADMINISTRATOR SETUP\n********************");

      System.out.println("GUESSING GAME: Guess how many items are in the jar.\n\nSelect the type of items, and how many can reasonably fit in a jar.\nSound good?  Okay let's begin!\n");
      if(args.length != 2) {
        Jar jar = new Jar();
        jar.fillJar();
      }



    }
    }

import java.util.Scanner;
import java.util.Random;


public class Jar {
  private String itemName;
  public int maxItems;


public Jar() {
  Scanner scanner = new Scanner(System.in);
  System.out.println("What type of item?");
  this.itemName = scanner.nextLine();
  System.out.println("What is the maximum amount of " + itemName + " ?");
  this.maxItems = Integer.parseInt(scanner.nextLine());

  System.out.println("\nPLAYER\n********************\nHow many " + itemName + " are in the jar?\nPick a number between 1 and " + maxItems);

}
  public String fillJar() {

    Random randomNumber = new Random();
    int rand = randomNumber.nextInt(this.maxItems/2+1);


    Scanner scanner = new Scanner(System.in);
    int guess = Integer.parseInt(scanner.nextLine());

    int count = 1;
    do {
      Scanner scanner1 = new Scanner(System.in);
      System.out.println("\nHow many " + itemName + " are in the jar?  Pick a number between 1 and " + maxItems);
       guess = Integer.parseInt(scanner1.nextLine());
       count ++;
       if(guess==rand){
         System.out.println("You got it in " + count + " attempt(s)");
      }

      } while(guess != rand);  
    return "You got it in X attempt(s)";

    } 
}