Delegation represents: a. White-box reuse b. Has-a relationship c. Black-box reuse d. Is-a relationship
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Delegation represents:
| a. |
White-box reuse |
|
| b. |
Has-a relationship |
|
| c. |
Black-box reuse |
|
| d. |
Is-a relationship |
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- Computer Science A course and a teacher object have a many-to-one relation. You need to enable a function wherein a course cannot be saved without notifying the teacher. What should be done to accomplish the task?3- Think of a hypothetical use case that hasn’t been covered in class and describe how a stored procedure or view can be used to implement an Abstraction Layer.When the items in two data structures are related by their indexes, it is said that a __________ exists between the data structures. a. binary union b. parallel relationship c. unilateral bond d. virtual connection
- Create a Sequence model (Application layer) for the following “Borrow Books” Use case for Students with a Valid ID and No Overdue Books or Fines from the Use-Case Description: Normal Flow of Events: 1. The Borrower brings books to the Librarian at the checkout desk. 2. The Borrower provides Librarian their ID card. 3. The Librarian checks the validity of the ID Card. If the Borrower is a Student Borrower, Validate ID Card against Registrar’s DB. If the Borrower is a Faculty/Staff Borrower, Validate ID Card against Personnel DB. If the Borrower is a Guest Borrower, Validate ID Card against Library’s Guest DB. 4. The Librarian checks whether the Borrower has any overdue books and/or fines. 5. The Borrower checks out the books. Alternate/Exceptional Flows: 4a. The ID Card is invalid, the book request is rejected. 5a. The Borrower either has overdue books, fines, or both, the book request is rejected.TASK 1: Create a State Chart Create a UML Class Diagram with Relationship (include Name, Attributes, and Operations) TASK 2: Create a Use Case Description using the template below: Use Case ID:Name:User:Description:Pre-condition:Post-Condition:Normal Flow:Alternate Flow:Exception Flow:Remarks (NonFunctional Requirement):Draw the domain class diagrams Scenario: Patient Administration SystemA local hospital has a large number of registered physicians, each with a unique physiciannumber. Physicians all have at least one specialty. Patients are admitted to the hospital byphysicians. The hospital keeps track of the patients’ names and addresses, and assigns eachpatient a unique patient identifier.Any patient who is admitted must have one and only one admitting physician. Onceadmitted, a patient must be treated by at least one physician. A particular physician maytreat any number of patients, or may not treat any patients. Whenever a patient is treatedby a physician, the hospital wishes to record the date and time of the treatment
- Assume that there are three objects named Student,Course and Teacher. A relationship that exists in the given three objects is called as__________ a. Unary Relationship b. Binary Relationship c. Association d. Ternary RelationshipSafe Datalog Rule: A Datalog rule is of the form:p :- q1, ..., qn. where n>0 and p is a positive atomic formula and q1, ..., and qn are positive or negative atomic formulas. A positive atomic formula is of the form:r(x1, ..., xm) and a negative atomic formulas of the form:not r(x1, ..., xm) where m>0 and r is a relation name and x1 , ..., xm are either numbers or variables. Relation names and variables are made up of alphabetic letters or digits and start with a lower-case alphabetic letter. Even though the variables are made up of lower and upper-case letters, these should be considered case-insensitive. For example, cno, CNO, cNO, etc all should be treated as the same variable. Some examples of Datalog rules are given below: ancestor(x1, y1) :- parent(x1, y1). teaches(tno,cno) :- faculty(tno), course(cno), assigned(tno,cno). p(x,y) :- q(2,x), r(u,45,z), s(a,b,22). p(x,y,z) :- q(x), not r(y,20), s(x,z). A Datalog rule is considered “Safe” if all variables that appear to the left…7. What are categories?8. What are outlets?9. What are blocks? what are they used for? can we pass them as arguments?Show exampels10. What is marker __block?11. Explain in detail the concept of delegation?12. To become a delegate and or to be a delegate?
- using c++ ,Create class “Student” with the following fields: FirstName, LastName, MiddleName, DateOfBirth, Gender, UGCode, HomeAddress, and Email The “DateOfBirth” field should have the “Date” type (developed in the first task) The “HomeAddress” field should have the “Address” type (developed in the previous task) Fields FirstName, LastName, MiddleName should have “char *” type and be allocated dynamically (using the new operator) Add a default constructor Add the overloaded constructor(s) Add the copy constructor Add the destructor Overload the output operator “>>” globally for “cout” function Create Instance of the Student class using your actual dataWrite a class Teacher that contains the attribute teacher name, age and address. It also contains member function to input and display its attributes. Write another class Author that contains the attributes author name, address and number of books written by him. It also contains member functions to input and display its attributes. Write a third class Scholar that inherits both Teacher and Author classes, scholar attributes are roll number, class and cgpa. In scholar get function to input values and show function to display the values, Test these classes from main() by creating objects of derived classes and testing functions in a way that clear concept of multiple Inheritance.Objective: To create a JSON for Scheme details with objects Scenario: Government wants to create a database for schemes launched in respective country. Application sends the details of schemes in the form of JSON Help to create a JSON with the information provided. Name Datatype of value Scheme String MinistryDetails Object LaunchedYear Number Country String BudgetInCrores Number MinistryDetails- Object : Name Datatype of value Ministry String MinisterName String HeadOfMinister String
