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

Java J2EE (14736)
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Java Related Interview Questions

Questions Answers Views Company eMail

howmany connection pool in connection

3 8055

Hi Frieds, I am new to servlet why to use servlet in webapplication. what i know is " use servlet as a controller in mvc and to implemnent business logic . is it correct ? One more thing reason for implementing business logic with servlets , why not jsp.

4 6194

I have one Shopping cart application, i that i have selected some items, while clicking submit button by mistake i have clicked twice or trice, that time items are selected twice or trice. Actually i want only one copy of items but its selected twice or trice. So how can we avoid this problem?

Honeywell,

2 6881

life cycle of an applet?

3 5379

can we use more than one controller in web application

IBM,

3 9986

How Vector class is synchronized,How to build user defined class as synchronized?

2078

What is difference between abstract class & final class

7 27133

Hai all I want to print given array in reverse order Ex: int a[]={1,2,3,4,5};display this array in reverse order.

4 6128

what is the output ? Math.floor(-2.1) a)2 b)-2 c)-3.0 d)0

Accenture,

4 13942

How to find the size of an array a)array.length() b)array.length c)array.size() d)array.size

Accenture,

6 11030

what is the Yield() method used in threads?

Accenture,

4 8619

System.out.println(101/14) what is the output? a)6 b)14 c)7.14 d)0

Accenture,

8 10752

when a servlet sends request for first time it uses the follwing methods a)init b)doget() c)dopost() d)service

Accenture,

4 7571

What is Connection Pooling?

Enteg Technologies, Infosys, Polaris,

1 6589

What are Benefits of Connection Pooling?

2 6513

Un-Answered Questions { Java Related }

Do you need an alignment after replacing struts?

961

What is jdbc driver for sql server?

1023

What does method mean?

1087

How do you add an arraylist to an array in java?

997

What is the use of bag in hibernate?

421

How can we integrate log4j in Struts2 application?

1056

Is spring boot an open source? : Spring Boot

553

Explain about Join?

1027

What does 3 dots mean in java?

1009

Why annotations are used in spring?

424

what is the difference between a threads start() and run() methods? : Java thread

1029

Why is inheritance used in java?

1142

What is the difference between a choice and a list?

1098

What is the significance of DataBaseMetaData.tableIndexStatistics? How to obtain and use it?

1009

How to combine the struts with velocity template?

960

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