class variables

As we know, instance variables are associated with object, where as class variables associated with class, i.e, available for all objects.

    Syntax

         static dataType variableName;

    Example

        static int count;

static variables are accessed by using class name.

    Syntax to access static variable

        ClassName.variablename

Example : program to count number of objects created for a class 

class Person{
 static int count =0;
 
 Person(){
  count++;
 }
}

class PersonTest{
 public static void main(String args[]){
  Person personA = new Person();
  Person personB = new Person();
  System.out.println("Number Of persons created are " + Person.count);
 }
}

Output

Number Of persons created are 2

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