What features distinguish Constructors?

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
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What features distinguish Constructors?
Transcribed Image Text:What features distinguish Constructors?
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In object-oriented programming, a constructor is a special method that is used to initialize an object of a class. Constructors are called when an object is created, and they typically have the same name as the class.

The features that distinguish constructors from other methods in a class are:

  • Name: Constructors have the same name as the class they belong to. This is different from other methods, which can have arbitrary names.

  • Return type: Constructors do not have a return type, not even void. This is because the purpose of a constructor is to initialize an object, not to return a value.

  • Accessibility: Constructors can have different accessibility levels, such as public, private, or protected. This determines whether the constructor can be called from outside the class or only from within the class.

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