In java what is the difference between an object and a class?

Answer 1

An object is an _instance_ of a class. A good example is to think of a class as a blueprint for a house, whereas an object is the actual house. You can have many, many houses (objects) build from the same blueprint (class)

Answer 2

An object is an instance of a class. (in the same way that Garfield is an instance of a cat)

Such that, if class is:

class MyClass {

public:

int x;

};

Then an object would be:

int main()

{

MyClass my_object;

}
A class creates multiple objects. It's kind of like a class is a blueprint and an object is a house; a blueprint can create multiple houses. You can create an object using a class using the following code snippet:

// Assume Foo is the name of a class

Foo foo = new Foo();

After that code is run, a shiny new Foo object will be created, accessible under the reference variable "foo".

Answer 3

A class is a set of methods grouped together. An object is an instance of a class whose constructor method sets aside a block of memory to store data.