10 Hibernate Interview Questions and Answers for Java J2EE Programmers

Hibernate Interview Questions are asked on Java J2EE Interviews, mostly for web based enterprise application development role. Success and a...

What is maximum Java Heap Size for 32 bit and 64-bit JVM - Frequently asked Questions

Maximum heap size   for 32 bit or 64 bit JVM looks easy to determine by looking at addressable memory space like 2^32 (4GB) for 32 bit JVM a...

Difference between Struts 1 and Struts 2 framework

I had work previously on Struts 1 but never touched Struts 2, specially since Spring MVC was there to take the leading role. Recently one of...

5 JSTL Core IF Tag Examples in JSP - Tutorial

<c:if>   or if tag of JSTL core tag library in JSP is one of the most versatile and useful tag. JSTL if tag allows you to test for ...

Display Tag Export Example in JSP – Issue Fix Java Tutorial

Display tag provides export options to export page into PDF, CSV, Excel and XML in Java web application written using JSP, Servlet, Struts o...

How to setup JNDI Database Connection pool in Tomcat - Spring Tutorial Example

Setting JNDI Database Connection pool in Spring and Tomcat is pretty easy. Tomcat server documentation gives enough information on how to se...

ThreadLocal Memory Leak in Java web application - Tomcat

ThreadLocal variables are infamous for creating memory leaks. A memory leak in Java is amount of memory hold by object which are not in use ...

Difference between save vs persist and saveOrUpdate in Hibernate

Save vs saveOrUpdate vs persist in Hibernate What is difference between save and saveOrUpdate or Difference between save and persist are...