XML Interview questions and answers for programmer

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XML Interview questions and answers for programmer --------------------------------------------------- What is XML ? Difference between ...

XPath Example in Java

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10 Example of XPATH ------------------------ package test; import java.io.IOException; import javax.xml.parsers.DocumentBuilder; impo...

Top 10 Reasons to do Java Certification like OCPJP and OCAJP

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1. To Learn Java Better 2. Hiring advantages 3. To do well on Java written test 4. To do well on Java interviews 5. To Earn mo...

Difference between dependency injection and factory pattern?

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Difference between dependency injection and factory pattern? -------------------------------------------------------------- What is diffe...

Tricky Multithreading and Concurrency Questions from Java Interviews

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1) Question on volatile variable 2) Can we make an Array volatile in Java? 3) Can you write code for double checked locking in Singleto...

JMSWMQ2020: Failed to connect to queue manager

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JMSWMQ2020: Failed to connect to queue manager ----------------------------------------------- Cause : reason code 2397 comes when SSL is...

How to round floating point number in Java

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How to round floating point number in Java -------------------------------------------- Rounding real in full: Just use the method Math...

How to use BigDecimal to add or subtract float and double in Java

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How to use BigDecimal to add or subtract float and double in Java ------------------------------------------------------------------- How...

J2EE Interview Question and answers for Java programmer

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J2EE Interview Question and answers for Java programmer ---------------------------------------------------------- What is J2EE or JEE ? ...

Jakarta Struts Interview Questions and Answers in Java

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Jakarta Struts Interview Questions and Answers in Java ------------------------------------------------------- What is struts ? What is ...

Resources to learn Java programming

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Resources to learn Java programming ------------------------------------ Now, if you decide to learn Java programming, here are couple of...

What is mutex and semaphore in Java ? Difference between mutext and semaphore

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What is mutex and Semaphore in Java Mutex and Semaphore in Java both used to provide mutual exclusion for critical section of code but the...