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

Core Java Interview Questions

Questions Answers Views Company eMail

where do you place after you did code in java

2 3536

why we r not use pointers in corejava?

Samsung,

2 6925

how to prepare for IT Officers Interview in Banks

TATA, Tata Steel Limited,

1491

Is Cegonsoft Pvt.Ltd. a good Institute?

4 5660

GoldMansachs Interview process....

Goldman Sachs,

1 10719

Hi all, I am dng a mini project on FileSplitter application which splits the GBs of logfile into Smaller chunks(mbs) depending on the split size." How to handle GBs file? I am getting OutOfMemoryException, when I input such GB sized file. Thx

1591

The class "Class" is belongs to which package?? a) java.lang b)java.lang.reflect c)java.util d)None

4 7844

which of tha following is not a thread safe class? a) ArrayList b)Vector c)HashTable d)None

17 15530

Explain the role played by Java Virtual Machine in Java Programming?

1 5428

Explain role of constructor in a java application?

5 12709

Where can i get Latest SUN Certification Dumps and what are the Sun Certification Codes that are available, Im new to JAVA, so please gimme info as i need to write J2EE - Core Java Certification

1358

This is my code i have a doubt class ab implements a,b { public void add() { System.out.println("Hi") } } interface a { public void add(); } interface b { public void add(); } in this code i have two interface implemented in the class has same method.just i want to know which method of interface implemented in the class. interface a or interface b? confused me .

3 3953

IN java collections we have both interfaces and classes. instead of using interfaces why we can't use classes only like that why we can't use interfaces only. why we need two things interface and class.

Accenture, CTS,

6 8868

Differences between jdk 1.4 and 1.5

SoftSol, TCS, Wipro,

6 15640

what happens when we add the objects morethan the size limit to a hashmap

1 3598

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Un-Answered Questions { Core Java }

What is primitive array?

504

Given a singly linked list, determine whether it contains a loop or not without using temporary space?

568

What is the difference between variable & constant?

530

Hi.... I applied for the post of scientific officer/Engineer-SB(Programmer).Please post the syllabus and sample papers.

1495

What is string literal in java?

543

What does exp mean in math?

520

I want my class to be developed in such a way that no other class (even derived class) can create its objects. How can I do so?

507

What is procedure overloading?

1785

Is string is a data type in java?

581

How does arraylist work in java?

514

What is vector capacity in java?

589

What are the differences between wait() and sleep()?

525

How many types of array are there?

532

What is passing value java?

500

What are different types of expressions?

540

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