C Cpp Java Oracle Database Concepts Networking Concepts OS Concepts S/w Testing Concepts   Core Java Java Networking Java Servlets Java RMI Java Server Pages     Core Java     What is the difference between menuitem and checkboxmenu item ? What is meant by vector class, dictionary class , hash table class,and property class ? Which class has no duplicate elements ? What is resource bundle ? What is an enumeration class ? What is meant by Swing ? What is the difference between AWT and Swing ? What is the difference between an applet and a Japplet What are all the components used in Swing ? What is meant by tab pans ? What is the use of JTree ? How can you add and remove nodes in Jtree. What is the method to expand and collapse nodes in a Jtree What is the use of JTable ? What is meant by JFC ? What is the class in Swing to change the appearance of the Frame in Runtime. How to reduce flicking in animation ? What is meant by Javabeans ? What is JAR file ? 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Why java is considered as platform independent? What are the advantages of java over Cpp? How java can be connected to a database? What is thread? What is difference between Process and Thread? What are abstract classes? What is an interface? What is the difference abstract class and interface? What are adapter classes? what is meant wrapper classes? What are swing components? What do you mean by light weight and heavy weight components? What is meant by function overloading and function overriding? What is RMI? Explain about RMI Architecture? What are Servelets? What is the use of servlets? Explain RMI Architecture? How will you pass values from htm page to the servlet? How do you load an image in a Servelet? What is purpose of applet programming? How will you communicate between two applets? What IS the difference between Servelets and Applets? How do you communicate in between Applets and Servlets? What is the difference between applet and application? What is the difference between CGI and Servlet? In the servlets, we are having a web page that is invoking servlets ,username and password? which is checks in database? Suppose the second page also if we want to verify the same information whether it will connect to the database or it will be used previous information? What are the difference between RMI and Servelets? How will you call an Applet using Java Script Function? How can you push data from an Applet to a Servlet? What are 4 drivers available in JDBC? At what situation are four of the drivers used? If you are truncated using JDBC , how can you that how much data is truncated? How will you perform truncation using JDBC? What is the latest version of JDBC? What are the new features added in that? What is the difference between RMI registry and OS Agent? To a server method, the client wants to send a value 20, with this value exceeds to 20 a message should be sent to the client . What will you do for achieving this? How do you invoke a Servelet? What is the difference between doPost method and doGet method? What is difference between the HTTP Servelet and Generic Servelet? Explain about their methods and parameters? Can we use threads in Servelets? Write a program on RMI and JDBC using Stored Procedure? How do you swing an applet? How will you pass parameters in RMI? Why do you serialize? In RMI ,server object is first loaded into memory and then the stub reference is sent to the client. true or false? Suppose server object not loaded into the memory and the client request for it. What will happen? What is the web server used for running the servelets? What is Servlet API used for connecting database? What is bean? Where can it be used? What is the difference between java class and bean? Can we sent objects using Sockets? What is the RMI and Socket? What is CORBA? Can you modify an object in corba? What is RMI and what are the services in RMI? What are the difference between RMI and CORBA? How will you initialize an Applet? What is the order of method invocation in an Applet? What is ODBC and JDBC? How do you connect the Database? What do you mean by Socket Programming? What is difference between Generic Servlet and HTTP Servelet? What you mean by COM and DCOM? What is meant by flickering ? What is meant by cookies ? Explain ? How OOPS concept is achieved in Java Features for using Java How does Java 2.0 differ from Java 1.0 Public static void main - Explain What are command line arguments Explain about the three-tier model Difference between String & StringBuffer Wrapper class. Is String a Wrapper Class What are the restriction for static method Purpose of the file class Default modifier in Interface Difference between Interface & Abstract class Can abstract be declared as Final Can we declare variables inside a method as Final Variables What is the package concept and use of package How can a dead thread be started Difference between Applet & Application Life cycle of the Applet Can Applet have constructors Differeence between canvas class & graphics class Explain about Superclass & subclass What is AppletStub What is the use of Interface ? Why Java is not fully objective oriented ? Why does not support multiple Inheritance ? What it the root class for all Java classes ? What is polymorphism ? What is the protocol used by server and client ? Can I modify an object in CORBA ? What is the functionality stubs and skeletons ? What is the mapping mechanism used by Java to identify IDL language ? Diff between Application and Applet ? What is serializable Interface ? What is the difference between CGI and Servlet ? What is the use of Interface ? Why Java is not fully objective oriented ? Why does not support multiple Inheritance ? What it the root class for all Java classes ? What is polymorphism ? Suppose If we have variable ‘ I ‘ in run method, If I can create one or more thread each thread will occupy a separate copy or same variable will be shared ? In servlets, we are having a web page that is invoking servlets username and password ? which is checked in the database ? Suppose the second page also If we want to verify the same information whether it will connect to the database or it will be used previous information? What are virtual functions ? Write down how will you create a binary Tree ? What are the traverses in Binary Tree ? Write a program for recursive Traverse ? What are session variable in Servlets ? What is client server computing ? What is Constructor and Virtual function? Can we call Virtual function in a constructor ? Why we use OOPS concepts? What is its advantage ? What is the middleware ? What is the functionality of Webserver ? Why Java is not 100 % pure OOPS ? ( EcomServer ) When we will use an Interface and Abstract class ? What is an RMI? How will you pass parameters in RMI ? Why u serialize? What is the exact difference in between Unicast and Multicast object ? Where we will use ? What is the main functionality of the Remote Reference Layer ? How do you download stubs from a Remote place ? What is the difference in between Cpp and Java ? can u explain in detail ? I want to store more than 10 objects in a remote server ? Which methodology will follow ? What is the main functionality of the Prepared Statement ? What is meant by static query and dynamic query ? What are the Normalization Rules ? Define the Normalization ? What is meant by Servlet? What are the parameters of the service method ? What is meant by Session ? Tell me something about HTTPSession Class ? How do you invoke a Servlet? What is the difference in between doPost and doGet methods ? What is the difference in between the HTTPServlet and Generic Servlet ? Explain their methods ? Tell me their parameter names also ? Have you used threads in Servlet ? Write a program on RMI and JDBC using StoredProcedure ? How do you sing an Applet ? In a Container there are 5 components. I want to display the all the components names, how will you do that one ? Why there are some null interface in java ? What does it mean ? Give me some null interfaces in JAVA ? Tell me the latest versions in JAVA related areas ? What is meant by class loader ? How many types are there? When will we use them ? How do you load an Image in a Servlet ? What is meant by flickering ? What is meant by distributed Application ? Why we are using that in our applications ? What is the functionality of the stub ? Have you used any version control ? What is the latest version of JDBC ? What are the new features are added in that ? Explain 2 tier and 3 -tier Architecture ? What is the role of the webserver ? How have you done validation of the fields in your project ? What is the main difficulties that you are faced in your project ? What is meant by cookies ? Explain ? Does java support function overloading, pointers, structures, unions or linked lists? What do you mean by multithreading? What are byte codes? What are streams? What is user defined exception? Explain Stream Tokenizer What is the difference between two types of threads Checked & Unchecked exception Use of throws exception What is finally in exception handling Vector class What will happen to the Exception object after exception handling Two types of multi-tasking Two ways to create the thread Synchronization I/O Filter Can applet in different page communicate with each other Why Java is not 100 % pure OOPS ? ( EcomServer ) When we will use an Interface and Abstract class ? How to communicate 2 threads each other ?   Home Interviews S/w Companies Placement Papers Career Channel Interesting Sites Certificate Exams Site Map About us