The class Animal has a constructor that takesone int argument. Which of the following is avalid statement that declares and creates aninstance of an Animal in a program?Animal elephant = new Animal(10);Animal elephant = new(10);Animal elephant = new Elephant(10);Animal elephant = newAnimal(10);Assuming that x, y, and z are integer variables,which of the following expressions areequivalent to each otherI. ( x == y && x != z ) || (x != y& & X== z )II. ( xy || x == z ) && ( x != y%3D33=|| x != z )III. ( x == y )( x == z )==O1, II, and IIIO Il and III only

The correct is ("Animal elephant =new Animal") Option("A")Explanation A Java builder is a special…

Answered: The class Animal has a constructor that…

The class Animal has a constructor that takes one int argument. Which of the following is a valid statement that declares and creates an instance of an Animal in a program?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Hello, I am having trouble with this homework question for my c++ course. Implement a Rational Number class with the following specifications. Data members a) numerator and denominator Functions a) Constructors: 1) default constructor 2) single parameter constructor to create numerator/1 3) dual parameter constructor to create numerator/denominator 4) Use constructor delegation across all constructors. b) Accessors and Mutators for both data members. c) Static recursive GCD function using Euclid's algorithm. d) Static LCM function for two numbers. e) Reduce function simplify a rational number. This function modifies its calling object. f) Your program should work with the supplied driver program. Notes LCM (Least Common Multiple) This function returns the smallest multiple of a and b. Step 1: Multiply a and b to find a common multiple. Step 2: Divide the common multiple by the GCD of a and b. Step 3: Return the result of Step 2. Reduce: This function reduces a fraction to…
in C++
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1. Create a properly encapsulated class named Person that has the following: A String instance variable called name. A constructor that takes a String parameter and sets the instance variable. A properly named getter for the instance variable. A correctly overrided equals method which returns true if the name instance variable of the parameter and the reference variable calling the method are equal. (Do not forget the null and class type checks!) Compile your Person class. 2. Create a properly encapsulated class named Employee that inherits from Person and has the following: ● ● ● A String instance variable called office (e.g. "LWH 2222"). A String instance variable called hourlywage (e.g. "$45.15"). A constructor that takes three Strings as parameters for name, office, and hourlyWage and sets the instance variables of both the parent class and the Employee class. An overridden toString method that returns the concatenation of name and hourlyWage instance variables (separated by a…
A Java-supplied default (a.k.a. a no-argument, or no-args) constructor (i.e., a constructor that takes no parameters and essentially does nothing) is automatically generated by Java for a class, provided that no other constructor is defined for the class. * True False
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Which among the following is not a member of the class? Select one: a.Friend function b.Constant function c.Non-static function d.Static function
Can we override static methods of a class?
This is for C++ only, and I will be using visual studio as a compiler. You can use dummy variables that I will change later Write a class named Student that has member variables for the following data: First name, middle name, last name Address, city, state, and ZIP code Email address Student ID# Major The Student class should have a constructor that accepts an argument for each member variable and include accessors and mutators for each member variable. Next, write a class named Course that represents a course the student will take. The Course class should have member variables for the following data: Course ID number Name of the course Name of the instructor Grade earned Number of units The Course class should have a constructor that accepts an argument for each member variable. The Course class should also have accessor and mutator functions for each member variable. write a program that creates an instance of the Student class, initialized with sample data.…