Java Interview Question

Questions:
Core
Type I
1. What is Oops?
2. What is function overloading
3. What is function overriding
4.
Type II
1. What is abstract Class?
2. What is Interface?
3. What is a difference between abstract and interface?
4. What is Vector, Array List?2
5. What is Hash table and Hash map
6. What is StringTokenizer?
7. What is the difference between string and string buffer?
8. What is Exception? How many type of Exceptions
9. What is the difference between compile time exception and run time exception
10. What is synchronization
11.
Type III
1. What is Hash Tree and Hash map?
2. What is IO?
3. What is socket and datagram?
4.

Type IV
1. What is Thread?
2. What is wait, Join, sleep?


DataBase:

Standard Questions:
1. How will you connect to the Database?
2. What is mean by Class.forName, sun.jdbc.odbc
3. What is the difference between prepared statement and callable statement.
4. How many types of dirvers available? *
5. What is difference between statement and prepared statement?
6. What is the difference between executeQuery, executeUpdate and execute.
7. What is ResultSet meta data and database meta data? *
8.
9.

Servlet
1. What is servlet?
2. What is the difference between doGet and doPost?

JSP
1. What are the advantages of the JSP
2. What is difference between include and forward? *
3. What is the difference between sendreaderwrite and forward *
4. What are the implicits objects in JSP
5. How will you handle error page in Java. *
6. What is the difference between page, session, request and application
7. How will you make JSP thread at safe? *
8.

Face to Face Interview Questions:
1. How will setup Tomcat: