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

Core Java Interview Questions

Questions Answers Views Company eMail

what is server side caching?

AIG,

2174

what is difference between validation.xml & validation rules.xml?

BirlaSoft,

8 27246

write a simple program inheritance?

Polaris,

2 7587

write a progam hashmap & hashtable?

IBM,

2 8579

what is webservices

Consultancy, Mind Tree,

5 10056

How to provide security in java

Infosys, TCS, Tech Mahindra,

2278

java can provide security ,how can provide?

Aspire, BNP Paribas, Genpact, IBM,

8 29728

what is servlet filter?

2 8702

what is request dispatcher and how does it work?

CTS,

2 11800

what is servlet enginee?

Covansys,

2153

how can i cal servlet from jsp page?how can i pass variablesfrom the jsp that servlet can access?

Verizon,

1 7826

what is sendredirect?

TCS,

7 10213

what is difference between requestprocessor and request dispatcher?

Tech Mahindra,

2 19617

what is difference between Action messages and Action errors?

Bio Imagene, TCS,

3 15026

what is the purpose of the final in the try-catch-final

7 9659

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Un-Answered Questions { Core Java }

What is the maximum size of byte array in java?

1011

What is thread safe java?

919

What is a variable in java?

1132

Define reflection.

996

Can we declare an interface as final?

1067

Why do we need hashset in java?

1042

Can arraylist hold different types java?

979

What is meant by overloading?

1069

Do we need to manually write Copy Constructor?

1033

What is method reference?

977

What are daemon Threads in java?

1202

What is the original name of java?

1114

Outline the major features of java.

1078

What are the basic interfaces of java collections framework?

1119

What is the final class?

1059

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