J2EE Interview Questions I have received the following error message: java.lang.RuntimeException: Unable to create ORB. Possible causes include TCP/IP ports in use by another process at . What does this signify? The error message may mean you have a port conflict. …
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What is difference between Java Bean and Enterprise Java Bean? Java Bean as is a plain java class with member variables and getter setter methods. Java Beans are defined under JavaBeans specification as Java-Based software component model which includes the …
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J2EE interview questions and answerS
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J2EE Interview Questions What is the relationship of the Apache Tomcat opensource application server to the J2EE reference implementation? Tomcat is based on the original reference implementation of the JavaServer Pages (JSP) and Java Servlet specifications, which was donated by Sun to the …
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J2EE Interview Questions What is the Java 2 Platform, Enterprise Edition (J2EE)? Java 2 Platform, Enterprise Edition (J2EE) is a set of coordinated specifications and practices that together enable solutions for developing, deploying, and managing multitier servercentric applications. Building on the Java 2 Platform, …
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J2EE Interview Questions What is connection pooling? Why is it used? What should you do with a connection once you are done using it? Connection pooling is the maintenance of a group of database connections for reuse by applications on …
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J2EE Interview Questions What are the contents of web module? A web module may contain: a) JSP files b) Java classes c) gif and html files and d) web component deployment descriptors Differentiate between .ear, .jar and .war files. These …
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