A constructor can be used to initialize all fields within a class. True False
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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- not handwritten Which of the following are NOT true for a constructor? Select one: a. It does not return anything b. Every class must include an explicitly written constructor c. Every field in the class is initialized in the constructor. d. It must have the same name as the classWhich of the following are NOT true for a constructor? Select one: a. It does not return anything b. Every class must include an explicitly written constructor c. Every field in the class is initialized in the constructor. d. It must have the same name as the classWrite a class called Alien. The Alien class must have one field of type String called name, one of type String called planet and one field of type boolean called humanoid. Write one constructor that takes three parameters to initialise all of these fields. The parameters must be passed in the order name, planet and humanoid status. IntelliJ hint (this won't be in the real test): put your cursor after the last field; right-click, choose Generate, choose Constructor, select the fields that are set via parameters and click Ok. Check that the constructor is correct. Write a getter method for each field. IntelliJ hint (this won't be in the real test): put your cursor after the closing curly bracket of the constructor; right click, choose Generate, choose Getter, select all of the fields; click Ok. Check that the you have three getters. Do not write setters methods. Write a method called getDetails that will return the values of the fields in one of the following two formats. For example,…
- Question: Choose the correct one. Note: Give me all the answers without explanation. 1.It is an instance of the class Select one: a. Method b. Object c. Data member d. Constructor 2.The encapsulation concept means. Select one: a. The class has private constructors and methods b. The data members are public access c. The data members are private access d. you can't access the members of the class even from the class itself 3.char A[]="hahahah"; char* p=&A[0]; *p='na'; p="CII"; cout<<A; the output is. Select one: a. CIIhahahah b. hahahah c. aahahah d. nahahah 4.Let A is char array as follows: char A[]=”hahahah”; the length of A Select one: a. 32 characters b. 7 characters c. 28 characters d. 8 characters 5.class A{int x;}; class B:public A{int y;public: void add(){y=++x;}};to correct the error. Select one: a. We should use protected: in class A b. We should use private: in class A c. We should use protected: in class B d. We should use public: in class B…a) Create an enumeration named Departments that contain four set of values FINANCE, HR, IT, and MARKETING.b) Create a class named PersonDetails that contains fields for a person’s first name (String), last name (String), and address (String). The class have- A constructor that accepts parameters for each field.- Get methods for each field.c) Create a class named Employee that contains fields for an employee ID (int), Social Security number (String), personal information (Person object), department (Departments type), and annual salary (double). The class have- A constructor that requires values for each data field.- Get methods for each of the data fields.- Set methods for each of the data fields.d) Create an application/class named EmployeeSort that allows a user to enter values for an array of 5 Employee objects (create an array of Employee type that will save 5 employee objects). Prompt a user for the data needed to create an employee object. Continue to prompt the user for Social…a) Create an enumeration named Departments that contain four set of values FINANCE, HR, IT, and MARKETING.b) Create a class named PersonDetails that contains fields for a person’s first name (String), last name (String), and address (String). The class have- A constructor that accepts parameters for each field.- Get methods for each field.c) Create a class named Employee that contains fields for an employee ID (int), Social Security number (String), personal information (Person object), department (Departments type), and annual salary (double). The class have- A constructor that requires values for each data field.- Get methods for each of the data fields.- Set methods for each of the data fields.d) Create an application/class named EmployeeSort that allows a user to enter values for an array of 5 Employee objects (create an array of Employee type that will save 5 employee objects). Prompt a user for the data needed to create an employee object. Continue to prompt the user for Social…
- a) Create an enumeration named Departments that contain four sets of values FINANCE, HR, IT, and MARKETING.b) Create a class named PersonDetails that contains fields for a person’s first name (String), last name (String), and address (String). The class haveA constructor that accepts parameters for each field and Get methods for each field.c) Create a class named Employee that contains fields for an employee ID (int), Social Security number (String), personal information (Person object), department (Departments type), and annual salary (double). The class haveA constructor that requires values for each data field.Get methods for each of the data fields.Set methods for each of the data fields.d) Create an application/class named EmployeeSort that allows a user to enter values for an array of 5 Employee objects (create an array of Employee type that will save 5 employee objects). Prompt a user for the data needed to create an employee object. Continue to 2prompt the user for Social…Q) Create three classes, first class should have all variables and all functions public, second class should have all variables private and all functions public it has a constructor to cofigure private variables, third class should have public and private functions it has a destructor to display a message "ALL DONE". NOTE: CREATE OBJECTS IN MAIN(), MANIPULATE PRIVATE VARIABLES THOUGH PUBLIC FUNCTIONS.(a) Write the cinema class that contains two private data: one to hold cinema location and the other to hold the number of seats in cinema. (b) Write the constructor foe the class that takes two parameters to set the location and the number of seats.
- Write a class named Employee that has the following fields:• name. The name field references a String object that holds the employee’s name.• idNumber. The idNumber is an int variable that holds the employee’s ID number.• department. The department field references a String object that holds the name ofthe department where the employee works.• position. The position field references a String object that holds the employee’sjob title.The class should have the following constructors:• A constructor that accepts the following values as arguments and assigns them to theappropriate fields: employee’s name, employee’s ID number, department, andposition. • A constructor that accepts the following values as arguments and assigns them to theappropriate fields: employee’s name and ID number. The department and positionfields should be assigned an empty string (""). • A no-arg constructor that assigns empty strings ("") to the name, department, andposition fields, and 0 to the idNumber field.…- Creates a class Teacher with two attributes: name and specialty. a. Add a constructor able to create a Teacher; b. Add the methods getName and getSpeciality; c. Add the method display able to display the attributes2- Create a class time24, each object is a value represented the time ofday in the form hours, minutes and seconds. Provide a constructorthat enables an object of this class to be initialized when it isinstantiated. The constructor should contain default values in case noinitializes are provided.Provide Public member functions for each of the followingoperations: set the time, print the time, increment the time by onesecond, compare two times for equality, increment the time by onehour, determine if one time is “less than” (comes before) anothertime, and final print the time in format 12 hours.Include any additional operations that you think would be useful foryour class.Design, implement, and test your class.