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,

1082

How can we avoid including a header more than once?

Fidelity,

1081

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

GrapeCity,

1081

Where to store local variables?

Aspiring Minds,

1166

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

Aspire, Infogain,

1398

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

Hexaware, Virtusa,

1343

How can I right-justify a string?

Aspire, Infogain,

1263

How would overload a function based on return type?

Genpact,

1040

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,

1217

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

Aspire, Infogain,

1081

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

Ciena,

1147

Explain Basics of OOP Language in java

Atos Origin,

1113

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

Deloitte, EXL, JPMorgan Chase,

1356

Give any two differences between C++ and java.

GrapeCity,

1210

What do you mean by Hash Map and Hash Table?

Atos Origin,

1148

Un-Answered Questions { Java Related }

Can a private method be declared as static?

1071

What is servlet initializer?

1039

What is the use of servletconfig interface?

1091

What is the use of applicationcontextaware in spring?

449

Why is spring framework so famous?

464

What are the parts of methodology?

1040

What are the features/ characteristics of spring?

455

How to get hibernate session in spring boot?

428

What is the integer of 16?

1044

Difference between hibernate session merge() vs update()?

449

Can a class have multiple superclasses?

1251

Why is java called technology?

957

Are registers volatile?

982

Describe some assignments that are executed by servlet container?

1136

What is the naming convention for a resource bundle file in struts2?

1046

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