a String expression to represent an object's state. a. toString () b. abstract c. super () d. this () 11. The call in a class constructor invokes the superclass's constructor that has the corresponding argument list. a. tostring () b. abstract c. super () d. this() 12. The call to invokes the constructor for the current class whose parameter list matches the argument list. a. tostring () b. abstract c. super () d. this () 13. If no constructors are defined for a class, the constructor for that class will be provided by default. a. private b. super c. public d. no-argument 14. What is a keyword to declare a subclass to a super class in Java? a. implements b. extends c. throws d. follows

a String expression to represent an object's state. a. toString () b. abstract c. super () d. this () 11. The call in a class constructor invokes the superclass's constructor that has the corresponding argument list. a. tostring () b. abstract c. super () d. this() 12. The call to invokes the constructor for the current class whose parameter list matches the argument list. a. tostring () b. abstract c. super () d. this () 13. If no constructors are defined for a class, the constructor for that class will be provided by default. a. private b. super c. public d. no-argument 14. What is a keyword to declare a subclass to a super class in Java? a. implements b. extends c. throws d. follows

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

10. Java automatically applies the
method to an object referenced in
a String expression to represent an object’s state.
a. toString ()
b. abstract
c. super()
d. this()
11. The
call in a class constructor invokes the superclass's
constructor that has the corresponding argument list.
a. tostring ()
b. abstract
c. super()
d. this()
12. The call to
invokes the constructor for the current class whose parameter list
matches the argument list.
a. toString ()
b. abstract
c. super()
d. this()
13. If no constructors are defined for a class, the
constructor for that class will be
provided by default.
a. private
b. super
c. public
d. no-argument
14. What is a keyword to declare a subclass to a super class in Java?
a. implements
b. extends
c. throws
d. follows

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