Match the following: A class that contains no methods (other than constructors) that change any of the data in its object modifier means that there are no restrictions on where an instance variable or method can be used hiding implementation details is done by marking data and methods as When we call a method in Java using class type

Match the following: A class that contains no methods (other than constructors) that change any of the data in its object modifier means that there are no restrictions on where an instance variable or method can be used hiding implementation details is done by marking data and methods as When we call a method in Java using class type

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 20RQ

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Question 6 Match the following: A constructor methods A class that contains no methods (other than constructors) that change any of the data in its object method name B. v modifier means that there are no restrictions on where an instance variable or method can be used c Accessor methods y hiding implementation details is done by marking data and methods as D Call-by-reference When we call a method in Java using class type parameters E Immutable class v Overloading is achieved when two or more methods in the same class have the same E Public G, private H method signatures
Design a LandTract class that has two fields (i.e. instance variables): one for the tract’s length(a double), and one for the width (a double). The class should have:  a constructor that accepts arguments for the two fields  a method that returns the tract’s area(i.e. length * width)  an equals method that accepts a LandTract object as an argument. If the argument object holds the same data (i.e. length and width) as the calling object, this method should return true. Otherwise, it should return false.  a toString method (that returns a String representation of the tract’s length, width, and area). Demonstrate the class in a program by creating an array of three LandTract objects initialized with user input. Then, print the info of the LandTract objects stored in the array by invoking the toString method (implicitly or explicity). Also, use the equals method to compare at least two LandTract objects and print wether they are of equal size or not. Sample Output:…
Match the following: A. private A class that contains no methods (other than constructors) that change any of the data in its object Immutable class В. modifier means that there are no restrictions on where an instance variable or method can be used c method signatures hiding implementation details is done by marking data and methods as D Public When we call a method in Java using class type parameters E constructor methods method name Overloading is achieved when two or more methods in the same class have the same F. Call-by-reference G. Accessor methods Н.
java A constructor is a special method that has the same name as the class and the return type void. Choose one of the options:TrueFalse
Create an Employee Class that will have Two instance variable: name and workingPeriod A class method named employeeByJoiningYear(): • To create an Employee object by joining year for calculating the working period o it will have two Parameter name and year • A static method experienceCheck() to check if an Employee is experienced or not o It will take working period and gender as parameter o If an employee's working period is less than 3, he or she is not experienced [You are not allowed to change the code below] # Write your code here employee1 = Employee('Dororo', 3) employee2 = Employee.employeeByJoiningYear('Harry', 2016) 6 print(employee1.workingPeriod) print(employee2.workingPeriod) print(employee1.name) print(employee2.name) print(Employee.experienceCheck(2, "male")) print(Employee.experienceCheck(3, "female")) Оutput 3 Dororo Harry He is not experienced She is experienced
Object Oriented Programming: 213COMP, 214COMP (Feb-2022) Assignment- I [10 marks] Academic honesty: O Only pdf file accepted & student ID, will be your upload file. O Student who submit copied work will obtain a mark of zero. O Late work or attach file by email message not allowed. Q1: Write the signature for a method that has one parameter of type String, and does not return a value. Q2: Write the signature for a method that has two parameters, both of type Student, and returns an int value. Q3: Write the constructor's headers of the followings? new Student (202101156, “Ahmed"); new Address(51, "jazan university","CS&IT" ); new Grade(true, 505235600, 4.5); Q4: a) Write a class Student that define the following information: name, stid , age. b) Explain a mutators (setters) and accessors(getters) methods for each attributes(fields). c) Add three constructors: • with empty constructor. one parameter constructor (name of student) two parameters constructor (name and stid) d) Create two…
Java Programming problem Create a checking account class with three attributes: account number, owner’s name, and balance. Create constructor, getters and setters. If one is to set the initial balance of an account as a negative value in a setter or a constructor, remind the user about the error and set it as 0. Create a CheckingAccountDemo class, and create a main method in which Ask for the name, account number, and initial balance for one account from the keyboard input. With these input values as arguments in a call to the constructor, create a CheckingAccount object. Print the summary of this account that includes information on the name, account number, and balance by calling the getters.
Task Performance Amount Due Objective: At the end of the activity, the students should be able to: • Apply method overloading in a program. Procedure: 1. Develop a simple program for an individual savings account. Create two (2) classes named AmountDue (no class modifier) and RunAmountDue (public). 2. For the AmountDue class, create three (3) overloaded methods named computeAmountDue based on the following conditions: With a single parameter: It represents the price of one (1) item ordered. Add 12% tax and return the total due. • With two (2) parameters: These represent the price of an item and the quantity ordered. Multiply the two (2) values, add 12% tax, and return the total due. With three (3) parameters: These represent the price of an item, the quantity ordered, and the discount amount. Multiply the quantity and price, deduct the discount amount, add 12% tax, and return the total due. 3. For the RunAmountDue class, import the Scanner class to be able to use the nextDouble()…
Static variables can... ...can be accessed even without creating an object of that class. ...only be accessed by static methods. ...not be accessed using class prefix. ...not be inherited.
Describe the classes, methods and attributes that you would use in the Object Oriented design of a simulated automobile. Use this format to describe your classes: Class: Door Methods: void Open(), void Close(), void SetLock(bool), bool GetLocked(), etc. Attributes: bool open, bool locked, class Window, etc.
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…
Practice with writing a program that contains three classes: Ship CruiseShip CargoShip Classes Design a Ship class with the following members: A field for the name of the ship (a string) A field for the year that the ship was built (a string) A constructor that accepts two arguments for the two fields, and appropriate accessors and mutators A toString method that returns a string with the ship’s name and the year it was built Design a CruiseShip class that extends the Ship class. The CruiseShip class should have the following members: A field for the maximum number of passengers (an int) A constructor that accepts three arguments for the three fields and appropriate accessors and mutators A toString method that overrides the toString method in the base class. The CruiseShip class’s toString method should return a string with only the ship’s name and the maximum number of passengers. Design a CargoShip class that extends the Ship class. The CargoShip class should have the…