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j2EE interview Questions

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j2EE interview Questions

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  1. Top J2EE Interview question and answers Reach Us : Radiantits.com Contact Us:+12105037100

  2. 1) what's J2EE? J2EE suggests that Java two Enterprise Edition. The practicality of J2EE is developing multitier web-based applications .The J2EE platform is consists of a collection of services, application programming interfaces (APIs), and protocols. Reach Us : Radiantits.com Contact Us:+12105037100

  3. 2) What area unit the four elements of J2EE application? • Application purchasers elements. • Servlet and JSP technology area unit net elements. • Business elements (JavaBeans). • Resource adapter elements Reach Us : Radiantits.com Contact Us:+12105037100

  4. 3) What square measure sorts of J2EE clients? • Applets • Application purchasers • Java net Start-enabled purchasers, by Java net begin technology. • Wireless purchasers, supported MIDP technology. Reach Us : Radiantits.com Contact Us:+12105037100

  5. 4) What square measure thought of as an internet component? Java Servlet and Java Server Pages technology elements square measure net elements. Servlets square measure Java programming language that dynamically receive requests and create responses. JSP pages execute as servlets however permit a a lot of natural approach to making static content. Reach Us : Radiantits.com Contact Us:+12105037100

  6. 5) what's JSF? Java Server Faces (JSF) could be a programmed (UI) coming up with framework for Java net applications. JSF give a collection of reusable UI elements, normal for net applications.JSF relies on MVC style pattern. It mechanically saves the shape information to server and populates the shape date once show at consumer aspect. Reach Us : Radiantits.com Contact Us:+12105037100

  7. 6) outline Hash table Hash Table is simply like Hash Map, Collection having key(Unique),value pairs. Hash table could be a assortment Synchronized object .It doesn't enable duplicate values however it permits null values. Reach Us : Radiantits.com Contact Us:+12105037100

  8. 7) what's Hibernate? Hibernate may be a open supply object-relational mapping and question service. In hibernate we will write HQL rather than SQL that save developers to pay longer on writing the native SQL. Hibernate has a lot of powerful association, inheritance, polymorphism, composition, and collections. it's a gorgeous approach for dogging into info victimization the java objects. Hibernate additionally permits you to precise queries victimization java-based criteria . Reach Us : Radiantits.com Contact Us:+12105037100

  9. 8 ) what's the limitation of hibernate? Slower in execution the queries than queries are used directly. Only search language support for composite keys. No shared references to price sorts. Reach Us : Radiantits.com Contact Us:+12105037100

  10. 9) What are the advantage of hibernate. •  Hibernate is portable mean database independent, Vendor independence. • Standard ORM also supports JPA • Mapping of Domain object to relational database. • Hibernate is better then plain JDBC. • JPA provider in JPA based applications. Reach Us : Radiantits.com Contact Us:+12105037100

  11. Reach Us : Radiantits.com Contact Us:+12105037100

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