What is different between instance and object.

An object and an instance are almost the same. The difference is between classes and objects.

Anything that is static in a class becomes propery of the class itself. These are things like static variables and static methods.

To use things that belong to the class itself, no instance of that class is required. No object is required.

Objects, on the other hand, are instances of a class. Any non static method defined in a class requires an instance for it to be used.

An example of a method that belongs to a class is the Collections.sort() method. This can be invoked simply by using the actual class.

However, adding an object to a LinkedList actually requires an instance of that class to be created.

So in short, an object is an instance of a class, so objects and instances are the same thing.

3 Replies

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Mangesh G9y ago
Accepted answer
Object is a copy of the class. Instance is a variable that holds the memory address of the object. For more refer http://stackoverflow.com/questions/3323330/difference-between-object-and-instance
+4
Vishal Prajapati9y ago
An object and an instance are almost the same. The difference is between classes and objects.

Anything that is static in a class becomes propery of the class itself. These are things like static variables and static methods.

To use things that belong to the class itself, no instance of that class is required. No object is required.

Objects, on the other hand, are instances of a class. Any non static method defined in a class requires an instance for it to be used.

An example of a method that belongs to a class is the Collections.sort() method. This can be invoked simply by using the actual class.

However, adding an object to a LinkedList actually requires an instance of that class to be created.

So in short, an object is an instance of a class, so objects and instances are the same thing.
+2
Nitin Sontakke9y ago
Both is identical.
0