Answer / Praveen Kuumar

The J2EE API (Java 2 Platform, Enterprise Edition Application Programming Interface) is a collection of APIs for developing enterprise applications using Java. It includes APIs for web development, messaging, security, and other areas.

Describe the file types *.ear, * .jar and *.war?

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What is gridlayout in java?

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What is data?

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for example we are login into the irctc server from there it will go to the selected bank and deduct amount and come back to the irctc. so if we are developing this in java means will it be run on the same session. but as per my knowledge bank is separate and irctc is separate URL's so it will use two different sessions then how it is maintaining same session through out application and even it uses the payment gateway? how it is working can any one help me on that??

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Please explain about internal casting and external casting in java..?

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How java is reliable?

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What is conversational state?

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What is a thin client?

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What are the main components of the j2ee application?

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what is interface in java ?can you explain with simple example?and what is the difference between abstract and interface?

1 Answers   HCL,

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What is core java and j2ee?

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What is component in java with example?

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