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,

1025

How can we avoid including a header more than once?

Fidelity,

1040

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

GrapeCity,

1028

Where to store local variables?

Aspiring Minds,

1106

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

Aspire, Infogain,

1294

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

Hexaware, Virtusa,

1277

How can I right-justify a string?

Aspire, Infogain,

1181

How would overload a function based on return type?

Genpact,

969

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,

1161

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

Aspire, Infogain,

1034

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

Ciena,

1094

Explain Basics of OOP Language in java

Atos Origin,

1062

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

Deloitte, EXL, JPMorgan Chase,

1275

Give any two differences between C++ and java.

GrapeCity,

1148

What do you mean by Hash Map and Hash Table?

Atos Origin,

1096

Un-Answered Questions { Java Related }

What happens when heap memory is full?

993

Is it possible to override private or static method in java?

996

Difference between ‘>>’ and ‘>>>’ operators in java?

1124

What's the difference between servlets and applets?

1049

Compare overloading and overriding?

1005

What do you mean by spring beans?

423

What are the drawbacks of singleton class?

1009

What is create method?

1025

How do I provide user credentials for starting the weblogic server?

967

What is aop in spring javatpoint?

492

What are the call back methods in entity bean?

1072

What is connector?

983

What is ‘is-a ‘ relationship in java?

1039

What are the benefits of using spring?

501

What is the configuration files used in struts?

957

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