Linux tutorial

Comments

  1. brninfotech28 February 2018 at 17:33

    Thank you for your post. This is excellent information. It is amazing and wonderful to visit your site.
    http://www.brninfotech.com/

    ReplyDelete

Post a Comment

Popular posts from this blog

java Interview Questions & Answers (includes core java, threads, servlet , jsp , ejb, design pattern, java util)

Question:   What is a compilation unit?   Answer:    A compilation unit is a Java source code file.  Question:   What restrictions are placed on method overriding?   Answer::    Overridden methods must have the same name, argument list, and return type. The overriding method may not limit the access of the method it overrides. The overriding method may not throw any exceptions that may not be thrown by the overridden method.  Question:   How can a dead thread be restarted?   Answer:    A dead thread cannot be restarted.  Question:   What happens if an exception is not caught?   Answer:    An uncaught exception results in the uncaughtException() method of the thread's ThreadGroup being invoked, which eventually results in the termination of the program in which it is thrown.  Question:   Which arithmetic operations can result in the throwing of an Ar...
Read more

JSP interview questions and answers for freshers and experienced

Questions : 1 Can you explain What is JSP page life cycle? Answers : 1 When first time a JSP page is request necessary servlet code is generated and loaded in the servlet container. Now until the JSP page is not changed the compiled servlet code serves any request which comes from the browser. When you again change the JSP page the JSP engine again compiles a servlet code for the same. JSP page is first initialized by jspInit() method. This initializes the JSP in much the same way as servlets are initialized, when the first request is intercepted and just after translation. Every time a request comes to the JSP, the container generated _jspService() method is invoked, the request is processed, and response generated. When the JSP is destroyed by the server, the jspDestroy() method is called and this can be used for clean up purposes.     Questions : 2 What is EL ? Answers : 2 EL stands for expression language. An expression language makes it possible to easily acces...
Read more

Database (DBMS) interview questions and answers

Questions : 1 What is database or database management systems (DBMS)? and - What’s the difference between file and database? Can files qualify as a database? Answers : 1 Database provides a systematic and organized way of storing, managing and retrieving from collection of logically related information. Secondly the information has to be persistent, that means even after the application is closed the information should be persisted. Finally it should provide an independent way of accessing data and should not be dependent on the application to access the information. Main difference between a simple file and database that database has independent way (SQL) of accessing information while simple files do not File meets the storing, managing and retrieving part of a database but not the independent way of accessing data. Many experienced programmers think that the main difference is that file can not provide multi-user capabilities which a DBMS provides. But if we look at some o...
Read more