this task you will make a Subject class, whose instances will represent the subjects for study at a university. A subject will have a name, just a String, and a subject code, which is a 7- character String (Example BIS2004). The first three characters of a subject code are alphabetic and the last 4 are numeric. The first three characters define the subject's discipline area. A subject code must be unique. You will also make a TestSubject class to test the use of your Subject class. In particular this will maintain an array of subjects. In order to manage the uniqueness of the subject codes, your program will need to display information about existing subject codes as well as checking that any new subject code supplied by the user is not the same as any existing subject code. In addition to the below, you needed to include the algorithm and UML diagram for this task. The following state and functionality should be provided for the Subject class: 1) Two data fields that will hold the subject's name and the 7-character subject_code. 2) A constructor will allow a name and a new, validated subject code to be provided when a new subject is created. 3) Getters will provide access to the above two attributes. 4) A toString method will return a string containing the subject code and subject name.

To assist with managing subject codes and their uniqueness you will provide the Subject class with some more methods as follows: 1) An isValidCode method will accept a string that is a possible new subject code, and return a boolean indicating whether it satisfies the structural requirements for a subject code. 2) A codeExists method will accept an array of Subject objects and a possible new subject code. It will return a boolean indicating whether that code has already been allocated to one of the subjects in the array. 3) A sortDisciplines method will accept an array of Subjects objects. It will return the sorted array of subjects in alphabetically order by Subject_code. Your TestSubject program will perform the following sequence of actions, using good design techniques such as in the appropriate use of methods: 1) Start your test program by creating 3 of the below subjects as new instances. (The code should check isValidCode and codeExists method before saving the instances into data structure) a. Subject Name = Object-Oriented Programming. Subject_code = BIS2004 b. Subject Name = Introduction to Programming. Subject_code = BIS1003 c. Subject Name = Data and Information Management. Subject_code = BIS1002 2) Whenever you create new subject, the values should get stored in appropriate data structure (like ArrayList) 3) Now if the user wishes to add new subjects, the discipline areas of existing subjects should be displayed in alphabetically order. And when user tries to add new subject, the code checks for isValidCode() to make sure it satisfies the structural requirements for a subject code and then checks for codeExists method to make the subject code is not exist in the data structure before. 4) Each subject code entered by the user should be checked. The user can enter any new subjects in that discipline (or indeed in other disciplines). The user should be given the choice of repeating the processing for totally 10 subjects. (means totally 10 subject codes and names should get added to the data structure after validation) 5) When the user has finished adding subjects after validation, call toString method to display 10 subject details. Note: You may use an ArrayList to implement an array if you prefer and it is appropriate. Include algorithm and UML diagram for this task. Coding: (Copy and Paste Source Code in word document. Format your code using Courier 10pts). Take the screenshots of your final results and paste them in your word file.