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

Core Java Interview Questions

Questions Answers Views Company eMail

How many statements can be created with one connection in jdbc?

Polaris,

4 11986

What is the importance in context in JDBC connection pools?

iFlex,

2 4766

How to call a Stored Procedure from JDBC?

Satyam,

4 7489

What are the types of statement? explain

SysBiz,

1 8096

In real time project which driver did u use? What is the main functionality of the Prepared Statement?

Photon,

3 7662

What are the parameters used in Connection pooling?

IBM,

1 5577

What are batch updates. in jdbc

Corent Technology,

2 6408

What is thin driver and thick driver. why it is called so?

Logisoft,

2 22676

What is JDBC Driver interface?How can you retrieve data from the ResultSet

CTS,

2109

What is the protocol is used in type4 driver?

CMC,

4 6970

What are the two major components of JDBC?

CMC, Mind Tree,

5 14662

What is stored procedure. How do you create stored procedure ?

GE,

1955

Which of the following is not an isolation level in the JDBC

CTS,

2126

Difference between local and global transaction ?

Accenture, iFlex,

1 22346

What are the steps to do connection pooling in weblogic?

TCS,

1 8076

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Un-Answered Questions { Core Java }

Why we used vector class?

1069

design an lru cache in java?

1005

Can we catch more than one exception in single catch block?

1051

What is the function of http?

1032

how to convert Java project into Maven ?

1055

How can we create an immutable class in java?

1066

What are checked exceptions?

1034

Can we create an object of static class in java?

1018

Which java ide is used the most?

1009

Explain the difference between map and flatmap stream operation?

1269

What are parameters in a method?

1109

What is unmodifiable collection in java?

925

What are different types of arrays?

1015

How to perform quicksort in java?

1116

What are the differences between heap and stack memory in java?

1057

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