Difference between class and object in java

Class is a blueprint or template which defines properties and behavior for creating objects.

Object is an instance of a class. We can create many objects using the same class template.

Class is like a cookie cutter and object is like a cookie. We can create many cookies using the same cutter.

Example:

class Vehicle 
{
  //----------attributes--------------
  String model;
  String color;
  float price;
  int seats;

  //----------methods-----------------
  public String start(){
    System.out.println("Vehicle is starting");
  }
  public String park(){
    System.out.println("Vehicle is parking");
  }
}

Vehicle class have different attributes like model, class, price and seats. Also it has methods like start and park.

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We can create different objects using Vehicle class.

Vehicle car = new Vehicle();
car.model = "Alto";
car.color = "Red";

Vehicle van = new Vehicle();
van.model = "Toyota";
van.color = "White";
van.seat = 8;

Vehicle bicycle = new Vehicle();
bicycle.color = "Blue";
bicycle.model = "Bajaj";

Here car, van and bicycle are 3 objects that we have created using Vehicle class. We can create any number of objects using a class.

Key differences between Class and Object