Object Variables vs Class Variables in Java

Question

I am in the process of learning Java and I don\'t understand the difference between Object Variables and Class Variable. All I know is that in order for it to be a Class Var

Answer 1

The difference between a static variable or a class variable and an instance variable or a object variable is pretty simple. Every object you create has its own copy of its very own instance variables. Where as if there is a static variable in the class then only one copy of that static variable exists for all the objects. For example

public class JellyBean{

    // instance variables every jellyBean object will have its own 
    // variable for color
    String color;

    // static variable only one copy of this variable exists for 
    // all jellyBean objects.
    static int totalNumberOfJellyBeans;

}//end class 

If you created 2 jellybean objects you would have two variables for Color because each jellybean has its own variable for color. And 1 variable for totalNumberOfJellyBeans because both jellyBean objects use this one class variable.