J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

J2EE Interview Questions

Questions Answers Views Company eMail

Whats the O/p of the below code snippet ? And explain how does it imply the concept of call-by-value/call-by reference. (PS : Pls ignore syntax errors) public class One { public oneA(){ sop ("Into One--");} } public class Two extends One{ public twoT(){ sop ("Into Two--"); } } public class Home { One a; Two t; public static void main(argv[]) { sop ("In Home--"); sop(a.oneA()); sop(t.oneA()); sop(a.twoT()); sop(t.twoT()); } }

Wipro,

4 7057

Explain the following statement: Java is always pass-by-value.

Wipro,

4 9493

what is direct link to download swing ebook,applet,ejb,core java

2588

how to run servlet program between two computer through internet ?

TATA,

2953

what is the difference between servlets and jsp?

Cegonsoft,

2 7355

what is the difference between application server and web server?

Cegonsoft, IBM,

5 11718

what is meant by proxy server

1 4884

Which implicit object in jsp is synchronized?

5 11013

What is the use of RequestProcessor, if we are having ActionServlet in struts

Oracle,

4 16391

static variable is a class variable which value remains constant for the entire class?? variable means value is changed....hear value is not changed... why it is called static variable

Infosys,

5 10363

Write a program for Sum of the digits for a given number Ex: suppose user entered Number is 1214, It should calculate the above number like 1+2+1+4 = 8

Amazon,

2 7270

Write a program to display numeric value in reverse order. Ex: I have given a number like 7584, It should display in reverse order like 4857.

6 8842

write a program, when a statement is entered, it should display in reverse order. Ex: Statement is "I am writing program in reverse order". Output should be like "order reverse in program writing am I".

4 10918

Difference between treemap & sortedset

Oracle,

3 12061

Diffrence between arraylist and hashmap

Oracle,

3 8364

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Un-Answered Questions { J2EE }

What is java gui?

889

What is application assembler?

955

What are java front end tools?

914

What is ejb container provider?

883

What does the web module contain?

970

What is application component provider?

1005

What do you understand by a thin client?

989

Is java important for my computer?

898

Define the struts in the j2ee framework?

909

What is j2ee tutorial?

1082

What is devops in java?

940

Why java is a platform?

952

What is a component in java?

906

What are the components of the java platform?

958

Where javac is located?

906

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