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

Core Java Interview Questions

Questions Answers Views Company eMail

java program with complete 4 oops concepts implemented example

Infosys, NIIT,

3156

what is platform independence in java?

CSC, HSBC,

5 8701

if num=687; U have to get num=6+8+7;

CMC,

4 6211

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?

CMC,

4 9318

in a console we r giving java if r pressing enter where it'll goes

CSC,

2 4943

Can we extend the String class?

Truworth,

3 25414

we r taking 0 1 in deployment descripter for loading servlets like serv1 N serv2? so 'll it take serv1 or serv2

CSC,

2 7512

what are the different non-access specifiers in java?

5 12091

java Technical questions asked by JPMC

JPMorgan Chase,

5084

what are variables in java

Wipro,

7 9346

What is multithreading ???? How to stop multithrading in java????

Cognizant,

1 5385

Suppose there is an array list [10,5,20,19,15,24].Print them in ascending & descending order in collection framework concept ???

Cognizant,

2 7060

What will happen if we cannot mention "finally" in Java Program ???

PWC,

3 7224

What is default specifier ??? Use of default specifier ???

Cognizant, Syntel,

4 8544

write a program to create an arraylist with string(add,remove) operation.and value should be enter through keyboard.

Axcend,

2172

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Un-Answered Questions { Core Java }

How do you sort in ascending order in java?

874

What is output buffer?

1053

How long will it take to learn java?

992

What is the numeric promotion?

1027

What is string in java with example?

1023

Why collection is called framework in java?

990

how would you implement a thread pool? : Java thread

919

Is java developer a good career?

1024

What are constructors in java?

1117

How does class forname work in java?

966

Can we convert list to set in java?

998

What is the maximum length of a url?

970

Can we convert stringbuilder to string in java?

988

What is the byte order of byte buffer?

1024

What are the methods of object class ?

1062

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