class Example2{
    int num;

    //Static class

    static class X{
        static String str="Inside Class X";
        num=99;
        // static int num = 99;
        // would be the correct syntax
    }

    public static void main(String args[]){
        Example2.X obj = new Example2.X();
        System.out.println("Value of num="+obj.str);
    }
}