What is the benefit of Inheritance?

What is the benefit of Inheritance?
by

1 Answer

Answer :

A: It is a very useful feature as it provides the concept of reusability. Also, it allows us to include or remove any features to an existing class without modifying it.
by

Related questions

What is Inheritance? How is it implemented in Java?

Description : What is Inheritance? How is it implemented in Java?

Last Answer : A: The ability of a class to adopt/share the properties (data and functions) completely or partially from another class is called Inheritance. In Java, it is implemented by the use of the keyword, extends.

....................... is the key to .................. A) Serialization, persistence B) Persistence, inheritance C) Inheritance, object D) Persistence, serialization

Description : ....................... is the key to .................. A) Serialization, persistence B) Persistence, inheritance C) Inheritance, object D) Persistence, serialization

Last Answer : A) Serialization, persistence

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

State true or false. i) init() is called after start() in applet ii) applets are used for networking iii) inheritance is a part of Java Foundation Classes iv) final does not prevent inheritance A) i-true, ii-true, iii-false, iv-true B) i-false, ii-false, iii-false, iv-false C) i-true, ii-true, iii-true, iv-true D) i-true, ii-false, iii-false, iv-false

Description : State true or false. i) init() is called after start() in applet ii) applets are used for networking iii) inheritance is a part of Java Foundation Classes iv) final does not prevent inheritance A) i-true, ii- ... C) i-true, ii-true, iii-true, iv-true D) i-true, ii-false, iii-false, iv-false

Last Answer : B) i-false, ii-false, iii-false, iv-false

....................is the key to ........................ A) Serialization, persistence B) Persistence, inheritance C) Inheritance, object D) Persistence, serialization

Description : ....................is the key to ........................ A) Serialization, persistence B) Persistence, inheritance C) Inheritance, object D) Persistence, serialization

Last Answer : C) Inheritance, object

…………. Is the process of creating new classes, called derived classes from existing classes called base class. A) Inheritance B) Encapsulation C) Polymorphism D) Overloading

Description : …………. Is the process of creating new classes, called derived classes from existing classes called base class. A) Inheritance B) Encapsulation C) Polymorphism D) Overloading

Last Answer : A) Inheritance

………… enable us to hide, inside the object, both the data fields and the methods that act on that data. A) Encapsulation B) Polymorphism C) Inheritance D) Overloading

Description : ………… enable us to hide, inside the object, both the data fields and the methods that act on that data. A) Encapsulation B) Polymorphism C) Inheritance D) Overloading

Last Answer : A) Encapsulation

The major goal of inheritance in C++ is A) To facilitate the conversion of data types B) To help modular programming C) To facilitate the reusability of code D) To extend the capabilities of a class

Description : The major goal of inheritance in C++ is A) To facilitate the conversion of data types B) To help modular programming C) To facilitate the reusability of code D) To extend the capabilities of a class

Last Answer : D) To extend the capabilities of a class

.................. allows to create classes which are derived from other classes, so that they automatically include some of its "parent's" members, plus its own members. (A) Overloading (B) Inheritance (C) Polymorphism (D) Encapsulation

Description : .................. allows to create classes which are derived from other classes, so that they automatically include some of its "parent's" members, plus its own members. (A) Overloading (B) Inheritance (C) Polymorphism (D) Encapsulation 

Last Answer : (B) Inheritance

Module design is used to maximize cohesion and minimize coupling. Which of the following is the key to implement this rule? (A) Inheritance (B) Polymorphism (C) Encapsulation (D) Abstraction

Description : Module design is used to maximize cohesion and minimize coupling. Which of the following is the key to implement this rule? (A) Inheritance (B) Polymorphism (C) Encapsulation (D) Abstraction

Last Answer : (C) Encapsulation

When the inheritance is private, the private methods in base class are.................. in the derived class (in C++). (A) inaccessible (B) accessible (C) protected (D) public

Description : When the inheritance is private, the private methods in base class are.................. in the derived class (in C++). (A) inaccessible (B) accessible (C) protected (D) public

Last Answer : (A) inaccessible

Consider the following two statements: (a) A publicly derived class is a subtype of its base class. (b) Inheritance provides for code reuse. Which of the following statements is correct? (A) Both the statements (a) and (b) are correct (B) Neither of the statements (a) and (b) are correct (C) Statement (a) is correct and (b) is incorrect (D) Statement (a) is incorrect and (b) is correct

Description : Consider the following two statements: (a) A publicly derived class is a subtype of its base class. (b) Inheritance provides for code reuse. Which of the following statements is correct? (A) Both the statements ( ... ) is correct and (b) is incorrect (D) Statement (a) is incorrect and (b) is correct

Last Answer : Answer: A

In C++, polymorphism requires: (A) Inheritance only (B) Virtual functions only (C) References only (D) Inheritance, Virtual functions and references

Description : In C++, polymorphism requires: (A) Inheritance only (B) Virtual functions only (C) References only (D) Inheritance, Virtual functions and references

Last Answer : (D) Inheritance, Virtual functions and references 

The rate of ……………. Is always an important factor for management especially in relation to the rate of return A) Cost B) Benefit C) Sales D) Investment

Description : The rate of ……………. Is always an important factor for management especially in relation to the rate of return A) Cost B) Benefit C) Sales D) Investment

Last Answer : D) Investment

Increased volume of sales is an example of ………….…. Benefit. Reduction of bad debts is an example of ……….. A) Tangible, Intangible B) Tangible, Tangible C) Intangible, Tangible D) Intangible, Intangible

Description : Increased volume of sales is an example of ………….…. Benefit. Reduction of bad debts is an example of ……….. A) Tangible, Intangible B) Tangible, Tangible C) Intangible, Tangible D) Intangible, Intangible

Last Answer : D) Intangible, Intangible

The main ingredient of the report documenting the ……………… is the cost benefit analysis. A) System Analysis B) Feasibility Study C) System Analyst D) System Design

Description : The main ingredient of the report documenting the ……………… is the cost benefit analysis. A) System Analysis B) Feasibility Study C) System Analyst D) System Design

Last Answer : B) Feasibility Study

Which of the following is not typically a benefit of dynamic linking? I. Reduction in overall program execution time. II. Reduction in overall space consumption in memory. III. Reduction in overall space consumption on disk. IV. Reduction in the cost of software updates. (A) I and IV (B) I only (C) II and III (D) IV only

Description : Which of the following is not typically a benefit of dynamic linking? I. Reduction in overall program execution time. II. Reduction in overall space consumption in memory. III. Reduction in overall space consumption on disk. IV. ... updates. (A) I and IV (B) I only (C) II and III (D) IV only

Last Answer : (B) I only