Core Java Interview Questions
Questions Answers Views Company eMail

What is Vector?Can you elaborate how Vector is Thread safe?

HCL,

3 10616

How to solve the problem of generating the unique hash keys with hash function?

1450

long d =10;int i =0;i=d; /// is this possible? If d is very long number (10 digits or some thing) then?

3 5466

How can we achieve IPC in JAVA?

Wipro,

1 2239

What do you mean by Remote procedure call?

2 4785

Have you worked on bits programming? examples?What is bit? How many bits are there in the byte?

1 3480

What is left shift and right shift?

1 5097

How GC (Garbage Collector) knows the objects reference is unused.Whether GC removes the unused object Parmanently or it maintains something.

2 6344

Why all programming languages have main as a execution starting point?

4 7559

what is private constructor?what are the uses of writing private constructor in our program?

10 19255

What is a thin-client application?

Adobe,

5 31787

What is a J2EE component? List out all the component?

Adobe,

2 30611

What advantage does an entity bean have over a sessin bean?

Adobe,

3 31589

Why would you desing a J2EE application so user data is entered by way of a JSP page and managed by an underlying Java Beans class?

Adobe,

5 21109

Why Java is a platform independent language?

Wipro, Zensar,

6 68075


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Un-Answered Questions { Core Java }

Can a source file contain more than one class declaration?

502


Does importing a package imports its sub-packages as well in java?

541


Explain parallel processing in java8?

622


what is thread in Java ?

614


Explain the features of interfaces in java?

546






Can we synchronize static methods in java?

590


Why to use nested classes in java? (Or) what is the purpose of nested class in java?

510


How many bits is a word?

553


What is a values collection view ?

675


what do you mean by stream pipelining in java 8? Explain

520


Does chrome use java?

508


How to stop a thread in java? Explain about sleep () method in a thread?

574


What are the four corner stones of oop?

538


What is garbage collector?

610


What is integer parseint?

542