Static/Class Variables VS Instance Variables | Java - kodingexamples.blogspot

What You will Learn :

• What are Static/Class variables
• What are Instance Variables
• Scope of Static and Instance variables
• Difference b/w Static and Class variables

Static Variables :

• Static variables are associated with all the objects of the class
• Declared in the class outside of any method or block
• They are assigned default values when created i.e 0 for integers
• They have the same state for all objects of the class
• No object is needed to access them i.e we access them like this  "ClassName.VariableName"
• They can be used in the static methods
• Just one copy of static variables per class

This image will clear all the confusion :

Instance Variables :

• As the name tells Instance Variables are associated with the Instances or Objects of the class
• Declared in the class outside of any method or block
• They are assigned default values when created i.e 0 for integers
• Every object of the class have its own set of Instance Variables.
• They may have different or same values(states) for all the objects
• They require the object to be accessed outside of the class as "ObjectName.VariableName"
• One copy of Instance Variables per Object

Here is an image for further explanation :

I hope you learned something from this post if you have any questions feel free to comment them below. Like us for more free stuff!!!