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Core Java Interview Questions
Questions Answers Views Company eMail

what is server side caching?

AIG,

1229

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

BirlaSoft,

8 21195

write a simple program inheritance?

Polaris,

2 5666

write a progam hashmap & hashtable?

IBM,

2 6672

what is webservices

Consultancy, Mind Tree,

5 6619

How to provide security in java

Infosys, TCS, Tech Mahindra,

1351

java can provide security ,how can provide?

Aspire, BNP Paribas, Genpact, IBM,

8 23978

what is servlet filter?

2 6315

what is request dispatcher and how does it work?

CTS,

2 9909

what is servlet enginee?

Covansys,

1215

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

Verizon,

1 6541

what is sendredirect?

TCS,

7 6512

what is difference between requestprocessor and request dispatcher?

Tech Mahindra,

2 16603

what is difference between Action messages and Action errors?

Bio Imagene, TCS,

3 12592

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

7 6169


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Un-Answered Questions { Core Java }

How can you say java is object oriented?

204


Are primitives objects?

175


What is rule of accessibility in java?

157


If an application has multiple classes in it, is it okay to have a main method in more than one class?

210


Do you need to import math in java?

185






write a program that list all permutations of ABCDEF in which A appears before B?

1630


Can we use catch statement for checked exceptions?

195


Can we have multiple public classes in a java source file?

209


Why main function is static?

225


What are the different types of data structures in java?

163


Is constructor inherited?

200


What is the difference between method and means?

177


What is use of static method?

180


What is Enum in Java?

272


What is the default size of arraylist in java?

167