Static Var

public Person {
    public static int staticVar = 0;
    public static int var = 0;

    Person() {
       staticVar++;
       var++;
    }

    public static int main(String[] args) {
        Person p1 = new Person();
        Person p2 = new Person();

        System.out.println(p1.staticVar + " " + p1.var);
        System.out.println(p2.staticVar + " " + p2.var);
    }
}