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 7050

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

Wipro,

4 9478

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

2585

how to run servlet program between two computer through internet ?

TATA,

2946

what is the difference between servlets and jsp?

Cegonsoft,

2 7350

what is the difference between application server and web server?

Cegonsoft, IBM,

5 11709

what is meant by proxy server

1 4877

Which implicit object in jsp is synchronized?

5 11002

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

Oracle,

4 16383

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 10349

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 8830

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 10908

Difference between treemap & sortedset

Oracle,

3 12052

Diffrence between arraylist and hashmap

Oracle,

3 8354

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Un-Answered Questions { J2EE }

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

2585

What is jetty in java?

996

What are the four types of J2EE modules?

1041

What is j2ee tutorial?

1074

What is java 2 platform, micro edition (j2me)?

1076

What are j2ee concepts?

941

Difference between load and get method?

975

What is enterprise information system resource?

968

What is included in j2ee?

906

What is java naming and directory service?

942

What is difference between javac and java?

1027

What is wildfly java?

907

What is java full stack developer?

1025

What is the use of jit compiler in java?

881

What is the best java compiler?

883

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