Month: October 2021

Advanced Java Interview Questions Part 2

If a servlet is not properly initialized, what exception may be thrown? During initialization or service of a request, the servlet instance can throw an UnavailableException or a ServletException.  Given the request path below, which are context path, servlet path and path info?/bookstore/education/index.html context path: /bookstoreservlet path: /educationpath info: /index.html  What is servlet mapping? The …

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Core Java Interview Questions Part 1

What is the difference between an Interface and an Abstract class? An abstract class can have instance methods that implement a default behavior. An Interface can only declare constants and instance methods, but cannot implement default behavior and all methods are implicitly abstract. An interface has all public members and no implementation. An abstract class …

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Advanced Java Interview Questions Part 5

Explain the new Features of JDBC 2.0 Core API? The JDBC 2.0 API includes the complete JDBC API, which includes both core and Optional Package API, and provides inductrial-strength database computing capabilities. New Features in JDBC 2.0 Core API: Scrollable result sets- using new methods in the ResultSet interface allows programmatically move the to particular …

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Advanced Java Interview Questions Part 4

What is Servlet chaining?Servlet chaining is a technique in which two or more servlets can cooperate in servicing a single request.In servlet chaining, one servlet’s output is piped to the next servlet’s input. This process continues until the last servlet is reached. Its output is then sent back to the client.  what is connection pooling?Class …

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JSP Interview Questions and Answers part 2

Dear readers, these JSP interview questions are specially designed to familiarize you with the nature of the questions that may arise during the interview theme JSP. In my experience good interviewers just think to ask any particular question during the interview, questions usually begin with a basic concept of the subject and then continue based …

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SQL Interview Questions and Answers with Examples Part 2

Frequently asked basic and advanced Database SQL Interview Questions and Answers with Examples, Queries for Freshers and Experienced Java, PHP, .Net Developers and DBA in Oracle, MySQL and SQL Server 2008. If the answers are same for Oracle, MySQL and SQL databases, only one query is specified. If the SQL Commands differ for Oracle, MySQL …

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