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 4370

why we r not use pointers in corejava?

Samsung,

2 8110

how to prepare for IT Officers Interview in Banks

TATA, Tata Steel Limited,

1919

Is Cegonsoft Pvt.Ltd. a good Institute?

4 6805

GoldMansachs Interview process....

Goldman Sachs,

1 11489

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

2075

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

4 9170

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

17 19631

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

1 6094

Explain role of constructor in a java application?

5 14051

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

1811

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 4965

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 10419

Differences between jdk 1.4 and 1.5

SoftSol, TCS, Wipro,

6 17362

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

1 4218

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Un-Answered Questions { Core Java }

How define set in java?

1000

How is garbage collection controlled?

1124

What is static import?

1109

Does java support multiple inheritances?

980

Can private method static?

874

What is the difference between a checked and an unchecked exception?

935

What are predefined functions?

1072

Is null in java?

956

How will you call an Applet using Java Script Function?

976

What are byte codes?

1144

What is a lock or purpose of locks in java?

977

what is the difference between preemptive scheduling and time slicing? : Java thread

983

Why are there no global variables in java?

1010

Explain with example the concept of constant variable in java.

1114

State the main difference between c++ and java?

1045

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