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

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

How many ways to remove the session object in the container

Bosch,

6 18560

How to perform Singleton of the java class object on multi JVM?

2 12747

How to send a request to garbage collector?

4 8497

while working struts in intellij 7.0error unable to initialize tld location cache: zip file is closed is displayed anybdy can answer me immdialy .ungert

Banking,

1 2629

when i run Frame program, it display output in supparate window.i try to close using "X" it not close.min'-' & max'+' are working.pls what is problem? i run in editplus. folowing program i given. import java.awt.*; class Form1 { Frame f1=new Frame("loginpage"); Label l1=new Label("username"); Label l2=new Label("password"); TextField tf1=new TextField(); TextField tf2=new TextField(); Button b1=new Button("submit"); Form1() { f1.setLayout(new FlowLayout()); f1.add(l1); f1.add(tf1); f1.add(l2); f1.add(tf2); f1.add(b1); f1.setSize(437,440); f1.setVisible(true); //f1.dispose(); } public static void main(String[] args) { Form1 f=new Form1(); } }

4 9427

java.lang.IllegalArgumentException: The path of an ForwardConfig cannot be null while working with struts it displayed pls very ungent

IBM,

3 22180

What happens when database down in weblogic

HCL,

8 24885

What is the use of RequestDispatcher in servlet?

Accenture, CTS, TCS,

18 56511

How can you say HashMap is syncronized?

Arete, IBM,

14 21711

difference between sql exception class and sql warning class

1 6418

How to handle when the database crashes while reading the data from the database?

IBM,

2 7002

can v create a constructor 4 servlet?

Satyam,

7 14514

which pattern is default in scanner package?

Satyam,

1 2294

what is d difference between deep cloning and shallow cloning in core java?

Satyam,

3 17757

what is the use of private constructor in core java?

OnMobile, Satyam, Yash Technologies,

3 19815

Un-Answered Questions { Java J2EE }

Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2415

What is the difference between equals() and == in java?

1032

hi actully i hav form columns with origin and destination names .as like as i need to create one more column with name amount. my requirement is when i select origin and destination columns automatically i need to get amount from database.how can i. please tel me with relative code

2865

How is declarative handling of exceptions done in struts ?

1001

What is lazy class?

481

Is minecraft 1.15 out?

1039

What is an object in java and how is it created?

1128

What is difference between @controller and @restcontroller in spring?

537

What is the difference between break and continue statements?

1118

What is parsing in java?

1032

How can you inject java collection in spring?

504

explain different ways of using thread? : Java thread

1079

What are the contents on web.xml in struts application ?

1058

Write a program to print count of empty strings in java 8?

1080

what are the different modes of archival? Explain each mode in two lines each?

994

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