java-Math is a class and the following notation is correct:                     Math.sqrt(4.77);           what  you can tell from notation:  sqrt is a per-object method sqrt is a per-class method sqrt is a per-class data field

Q: Can an object be referenced by variables of several different data types?

A: Yes an object be referenced by variables of several different data types.

Q: Write a class named student that holds the following data about a student in attributes: first-name,…

A: class student:        first_name = ""    last_name = ""    ID_number = 0    phone_number = 0…

Q: Data structure & Algrothium java program Create the following classes: 1. Name.java object class…

A: The answer given as below:

Q: How is data binding efficiency measured in a software application?

A: Data binding efficiency in a software application is a critical aspect that influences its…

Q: In the file Calculator.java, write a class called Calculator that emulates basic functions of a…

A: Given code of LabProgram.java file: import java.util.Scanner; public class LabProgram {public static…

Q: True or False: An abstract method has no body.

A: Given: True or False: An abstract method has no body.

Q: Why "this"? Are pointers more frequent than object pointers?

A: This is a hint: This pointer is given as an implicit parameter to all member functions. As a result,…

Q: Reference variables can be polymorphic. What does this mean?

A: Given: Reference variables can be polymorphic. What does this mean?

Q: You can see that students have a name, a number, some marks for subjects they are studying and the…

A: The given UML diagram is:

Q: If we do not override the toString method in a class, the toString method for the Object is called.…

A: The correct answer for the given question is provided below.

Q: True or False: "this" is a reference to the current object in an instance method or function…

A: Answer : - True

Q: Q1: There are common attributes and methods between passengers and drivers. What is the best choice…

A: The national railway company is seeking to develop a simple application to manage trips and…

Q: Show a class Sales object that represents the sales for a particular day, there is two data members:…

A: The required Sales class is as follows class Sales:    def __init__(self, days, sales_dict):…

Q: Prepare the following classes in C# Mycárcle -center:MyPoint -radius:int = 1 MyPoint MyCircle(x:int,…

A: // The MyPoint class definitionpublic class MyPoint { // Private member variables private int x;…

Q: private float c; private void method2(double y) { c = y; } in another class we created an object…

A: A programming language is a formalized set of instructions used to communicate with a computer and…

Q: In terms of type declaration, how are rvalue references and lvalue references different?

A: Every expression in the C++ language has either an ivalue or a rvalue.

Q: Why is encapsulation called Data Hiding?

A: Introduction Data encapsulation, otherwise called data hiding, is the system by which the execution…

Q: Question in Python   {   "logs": [     {       "logType": “xxxxx”     },     {…

A: I have solved this using list comprehension.

Q: Point out errors in the following codes and correct them publicclass CheckingAccount { // Create…

A: Please find the code below:: Highlighted line represent correction. package classes1;public class…

Q: Task 1: Write an abstract class Method +: public -: private #:protected Underline: static # input:…

A: SOLUTION - In this class given the 'method' method is declared as static and input will be an…

Q: Write a c++ oop code following these instructions only. Class Scene: capture_date : int draw() :…

A: // This program is a trivial little flight simulator. You control a ship // with the keyboard. Use…

Q: In order to avoid the complications that arise when combining non-object values with object-related…

A: In programming, it's common to encounter scenarios where we need to use non-object values, such as…

Q: str='The class construct defines a user defined type of object that can group variables, methods,…

A: Python code to print total words and even length words is given below.

Q: Once an object name is declared, can it be reassigned to reference another object?

A: Once an object name is declared, can it be reassigned to reference another object?

Q: oublic class MyGenClass { private T1 name; private T2 stulD; private T3 CGPA; public void…

A: SUMMARY: -   Hence, We discussed all the points

Q: Task 2: Write a class ReadMethod that extends the Method class. +: public -: private #: protected…

A: abstract class Method {    // declaration of variables    protected int input;    protected String…

Q: Write a constructor for the IceCreamCup class. The constructor takes the name, and a List of Flavor…

A: Constructor for IceCreamCup class.

Q: For the following class, write the code to create two different objects: public class Course{…

A: To create objects simply write ,  className objectName=new className(parameters);   //constructor…

Q: Example in Java Write and use classes with instance variables and their getters…

A: import java.util.Objects; public class Car {    // Instance variables    private String make;…

Q: Create a class employee with the data members,name,id and salary as private data member . Create…

A: Step 1:- Program Approach:- 1.Include the header file 2.Create the class employee with its data…

Q: 1.  Assume the following: class Complex { public: Complex(int, int);     //initializes the private…

A: ANS: - Option(b) is correct. that is, No,  you will get a compiler error.

Q: Assume we have a class called Animals and within this class we have a method called toString(), and…

A: Calling an Object's Methods. You also use an object reference to invoke an object's…

Q: What is a constructor? A   A class designed especially to construct a Java object. B   A data field…

A: In object-oriented programming, a function constructor is a particular method of a class or…

Q: USING C++ Implement the Rectangle class below: *******RECTANGLE CLASS******* class Rectangle {…

A: #include <iostream>using namespace std;class Rectangle{    private:    double width;    double…

Q: In Java, what allows for the manipulation of data variables in a class?   Group of answer choices:…

A: The manipulation of data variables in a class refers to the ability to perform operations on those…

Q: This concept allows routines to use data again at different times. a. Abstraction b. Polymorphism c.…

A: This question is related with the OOP's concept of programming. We have to choose one correct out of…

Q: public float method1(int z) { return (float) z; } // in another class we created an object of the…

A: Programming languages can be categorized into high-level languages, which are closer to human…

User Defined DataType

The data type is a format to store data that contains a particular range or type of value. It specifies which type of value a variable should have. In other words, a data type describes the type of data that variables can store. When a program stores data in the variables, then every variable needs to be assigned value that falls within the range of its data type. The following are some of the data types: