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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

What is run time allocation?

Fidelity,

1019

How can we avoid including a header more than once?

Fidelity,

1031

Define max and min heap, also the search time of heap.

GrapeCity,

1022

Where to store local variables?

Aspiring Minds,

1096

How do you declare an array that will hold more than 64KB of data?

Aspire, Infogain,

1284

What is the difference between member variables initialization and assignment in a constructor?

Hexaware, Virtusa,

1256

How can I right-justify a string?

Aspire, Infogain,

1165

How would overload a function based on return type?

Genpact,

957

Which method you will use to create a new file to store some log data. Each time a new log entry is necessary, write string to the file in java ?

HCL,

1154

Write a program to find the whether a number is an Armstrong number or not?

Aspire, Infogain,

1020

Is it possible to use Semaphore/ Mutex in an Interrupt Handler?

Ciena,

1084

Explain Basics of OOP Language in java

Atos Origin,

1052

What is an empty class? What functionality does it offer in Java?

Deloitte, EXL, JPMorgan Chase,

1267

Give any two differences between C++ and java.

GrapeCity,

1137

What do you mean by Hash Map and Hash Table?

Atos Origin,

1084

Un-Answered Questions { Java Related }

Explain the purpose of garbage collection in Java?

1022

What is cookies in networking ?

999

What is the difference between Array and Hash Table?

1024

Why am I getting an ora-01000: maximum open cursors exceeded error, even though I closed all resultset, statement, and connection objects? : BEA Weblogic

1018

What are triggers in DB? Explain their types. How do they work?

1087

What is ffdc?

859

Is ++ operator thread-safe in java?

1176

Which characters may be used as the second character of an identifier, but not as the first character of an identifier?

1044

What is the use of dao in spring?

392

How to know howmuch data is truncated?

2365

What is the difference between session and entity beans? When should I use one or the other?

971

How to handle exceptions in the spring mvc framework?

476

What do you mean by JVM?

1072

What is the purpose of constant tag in struts.xml?

940

What are the differences between setmaxrows(int) and setfetchsize(int)?

1063

For More Un-Answered { Java Related } Questions Click Here