Which of the following statements about constructors is correct: A constructor has the same name as the class name. A constructor is responsible for the initialization of an Constructor methods have no return type. A class can have several constructors. All of the above. Which of the following is an application of the principle of inheritance: An object of class A has a reference to a class B object. Several methods have the same name, but have different signatures. Objects created with new are allocated on the heap. Fields are usually declared private. All classes are ultimately derived from the super class called Object.

Which of the following statements about constructors is correct: A constructor has the same name as the class name. A constructor is responsible for the initialization of an Constructor methods have no return type. A class can have several constructors. All of the above. Which of the following is an application of the principle of inheritance: An object of class A has a reference to a class B object. Several methods have the same name, but have different signatures. Objects created with new are allocated on the heap. Fields are usually declared private. All classes are ultimately derived from the super class called Object.

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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Concept explainers

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:

Question

Which of the following statements about constructors is correct:
A constructor has the same name as the class name.
A constructor is responsible for the initialization of an
Constructor methods have no return type.
A class can have several constructors.
All of the above.
Which of the following is an application of the principle of inheritance:
An object of class A has a reference to a class B object.
Several methods have the same name, but have different signatures.
Objects created with new are allocated on the heap.
Fields are usually declared private.
All classes are ultimately derived from the super class called Object.

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