ServiveOffice, Tester class

package Tester;

import ServicePkg.Office;

public class Tester {

    public static void main(String[] args) {
        try {
            // create office with maximum 10 waiting customers
            Office myOffice = new Office(10);

            // open the office for customers to arrive
            myOffice.open();

            // wait 500 to get customers, no employees yet
            Thread.sleep(500);

            // add two employees
            myOffice.addEmployee();
            myOffice.addEmployee();

            // wait 500 and then add new employee
            Thread.sleep(500);
            myOffice.addEmployee();

            // get employee out after 500
            Thread.sleep(500);
            myOffice.removeEmployee("Employee #1");

            // wait 500 before closing the office
            Thread.sleep(500);
            myOffice.close();

        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

}