Java Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Java J2EE (14736)
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Java Related Interview Questions

Questions Answers Views Company eMail

1) which method of the RequestDispatcher cannot be called once the output is sent to the client? a. forward b. include c. both a&b 2) which interface should an object implement to get notified of changes to the list of active sessions in a web application? a. HttpSessionListener b. HttpSessionActivationListener c. HttpSessionAttributeLIstener 3) A user can select multiple locations from a list box on an HTML form, which of the following methods can be used to retrieve all the selected location? a. getParameter() b. getParameterValues() c. getParamValues() 4) which of the following methods should be used to send character text to the client? a. ServletResponse.getWriter() b. ServletResponse.getOutputStream() c. ServletResponse.getOut() 5) which implicit object is always available in a JSP page? a. exception b. session c. out 6) which inclusion mechanism doesn't include the source of the page, rather the output of the page. a. include directive b. jsp:include action c. Bothe a& b 7) which attribute of the page controls whether a page participates in session or not? a. session-allowed b. session c. isSession

1 4369

can we change the order of parameters in execute()?

Polaris, Serco,

4 10039

why do we use logic tag library in struts?

Polaris,

1 5531

can we change the location of struts-config.xml file?

TCS,

2 11368

How many ways are available to ger RequestDispatcher object?

Polaris,

4 17600

WHAT IS MARKER INTERFACE,AND NO METHODS IS NOT THERE ON THAT INTERFACE THEN WHY WE USED IN JAVA?

L&T,

3 7926

Is it possible to do method overloading and overriding at a time

L&T,

3 9529

what happen if we set JDBC string to NULL?

Sapient,

1 3476

why java uses class level type casting ?

1 2712

how a programmer confirms that the data submitted has been succesfully inserted into the database(either oracle or my sql).. How a programmer confirm if there is any problem with the program he wrote for insertion... ANS:--- >executeupdate method is having boolean return type, if anything goes wrong in data insertion or data updation, it would return false. otherwise, if it successfully inserts data into the database, it would return true NOW HOW TO I CHECK IN MY DURING EXECUTION WHETHER IT RETURNS TRUE OR FALSE... WELL IT WILL DISPLAY ANY MESSAGE OR NOT

Google,

1 2501

where can we get jAVA project orientation traing in HYDERABD

2087

java program with complete 4 oops concepts implemented example

Infosys, NIIT,

1 3241

servlet life cycle?

eMids, Wipro,

4 8297

any one can explain about policy file rule? when i connect database with applet then ther is no compile time error but the run time error is occureed.i.e access is denied.policy file rule is related to this problem.

1 2385

what is platform independence in java?

CSC, HSBC,

5 8992

Un-Answered Questions { Java Related }

Are jvm’s platform independent?

970

Write a program to print count of empty strings in java 8?

1077

What is java string pool?

1073

what is reflection api? How are they implemented?

1097

what are the different modes of archival? Explain each mode in two lines each?

992

What is the java api?

982

How is declarative handling of exceptions done in struts ?

999

What is the difference between break and continue statements?

1115

What is the difference between filters and interceptors ?

1293

What are the differences between heap and stack memory in java?

1121

How does java handle integer overflows and underflows?

1105

explain different ways of using thread? : Java thread

1075

What is action chaining ?

1156

What is a classloader in java?

1080

What is an object in java and how is it created?

1120

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