Explain the j2ee tiers.

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What is ebxml?

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What are the technologies a java developer must know?

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Why is j2ee needed?

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

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What is ear file?

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Whats the O/p of the below code snippet ? And explain how does it imply the concept of call-by-value/call-by reference. (PS : Pls ignore syntax errors) public class One { public oneA(){ sop ("Into One--");} } public class Two extends One{ public twoT(){ sop ("Into Two--"); } } public class Home { One a; Two t; public static void main(argv[]) { sop ("In Home--"); sop(a.oneA()); sop(t.oneA()); sop(a.twoT()); sop(t.twoT()); } }

4 Answers   Wipro,

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

0 Answers   HCL,

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Is visual studio good for java?

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What are the components of j2ee applications?

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Write a program for Sum of the digits for a given number Ex: suppose user entered Number is 1214, It should calculate the above number like 1+2+1+4 = 8

2 Answers   Amazon,

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What is the description for expression element?

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