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Java J2EE Interview Questions
Questions Answers Views Company eMail

Why are strings immutable in Java?

 1 630

How to convert string to int in java?

 1 639

How to use scanner in java?

 1 766

What if memory allocation using new fails in C++ how to handle

 82

Creating Class and methods – Java OOP Exercise

 68

Check Your Java OOPs Concepts Skills and Master it Quickly

 72

Find Best Job Vacancies across the world on Jooble!

 95

Distance between two points in java

 71

ALL OOPs Concepts Using Java with 1 Tiny Program – Explained!

 75

BIG-O NOTATIONS

 73

how to measure method execution time in java

 93

How does a cookie work in Servlets?

 334

What the difference is between execute, execute Query, execute Update?

 365

Un-Answered Questions { Java J2EE }

What’s the default was port?

506

What is a marker interface?

563

In the servlets, we are having a web page that is invoking servlets ,username and password? which is checks in database? Suppose the second page also if we want to verify

582

worst case complexities of Quick sort and Merge sort.

585

What is regex used for?

534




What is the importance of static variable?

580

Can we define constructor in inner class?

533

Is class forname reflection?

510

What are 4 drivers available in JDBC? At what situation are four of the drivers used?

528

What is the purpose of garbage collection in java, and when is it used?

553

What is the use of jfc in java swing?

646

What are the features of struts 2?

534

What are some disadvantages of storing session state in cookies?

582

What is an example of a one to many relationship?

253

Can I enable requests to a jdbc connection pool for a database connection to wait until a connection is available? : BEA Weblogic

516

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