1.  Can be change main method as another return type like :)
       public static int main(String args[] ) {}

2.  What is the difference between Exception Handling and Error Handling?
3.  Can we develop two main methods in Java file?
4.  When do you achieve NullPointerException in Java programming?
5.  Can we create a method that throws multiple Exception at a time?
6.  Describe the one to eight steps of Java database connectivity?