Attributes

What is an attribute in Programming

An attribute is a property of an entity (entity such as class etc)

Attributes are variables or identifiers but are bound to an entity

An Attribute can store some value like number or string, or can be a reference to a object

Consider following Html Button element

<button class="btn btn-primary" id="btn1" style="width:20mm; height:5mm;">Submit</button>

Here, class id and style are attributes of button element

Consider, following java class

public class Person {
  String name = "John";
  final static String SPECIES = "Human";

  public static void main(String[] args) {
    Person person_object = new Person();
    System.out.println(String.format("%s is a %s", person_object.name, Person.SPECIES));
  }
}

Here, name and SPECIES are attributes of Person class, which can be accessed by its object person_object

SPECIES is a constant which is same for all objects of class Person, while name is a variable