Develop a class named Department with two data members: name and size. The name can take values such as "Finance", "Human Resources". size is for how many people work in the department; You should provide all constructors, all get/set methods, and the toString method; 2). Develop a class called Company which should have at least four data members: name, address, totalNumberOfEmployees, and departments (of type Department; an array). The relation between Company and Department is composition. The total number of employees is the sum of the sizes of all departments. You should provide all constructors, especially the constructor that receives departments as an initial value, all get/set methods, and the toString method; 3). Create three departments: "Finance", "Human Resources", "IT". Test all constructors, and get/set methods, toString method; 4). Create a company object with the above departments: "Finance", "Human Resources", "IT". Test all constructors, and get/set methods, toString method; take screenshots;