CLASSES AND OBJECTS 1

Introduction to Classes and Objects - Part 1 (Data
Structures & Algorithms #3)
CS Dojo
Classes and objects are fundamental concepts in data structures and algorithms.
In this introduction, we will cover the basics of what they are and their
components.
Classes and Objects
Classes: A blueprint for creating objects. It defines a set of attributes and
methods that the objects of that class will have.
Objects: An instance of a class. It has its own set of values for the attributes
defined in the class, and can call the methods defined in the class.
Attributes
Attributes are the characteristics or properties of an object. They are defined in
the class and are used to store data. For example, a class "Person" might have
attributes such as "name", "age", and "address".
Methods
Methods are functions that are defined in the class and can be called by the
objects of that class. They are used to perform actions on the data stored in the
attributes. For example, a class "Person" might have a method called "introduce
()" that returns a string introducing the person by their name and age.
Constructors
Constructors are special methods that are called when an object is created. They
are used to initialize the attributes of the object with default values. For
example, a class "Person" might have a constructor that takes in a name, age,
and address and sets the corresponding attributes of the object.
Code Samples
Here are some code samples in Java:


public class Person {
String name;