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priyanaka jaiswal

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since Jun 03, 2011
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Recent posts by priyanaka jaiswal

Hi All,


In interview they ask me to write table struture for storing hierarical data IN ORACLE

CEO>> CTO>>PM>>TL>>SENIOR SOFTWARE ENGINEER>>ENGINEER any guidance will be great, i dont have any idea how to do it?


Thanks in advance
6 years ago
Hi All,


In which class readReslove() method is available in javadoc?


Thanks in advance
6 years ago
Hi All,


How hashcode value is assigned to object by JVM?

Thanks in advance
6 years ago
Thanks carle
6 years ago
Hi All


What does this code does. i have seen many program using this same SerialVersionUID .I mean i am not actually getting to which object it will provide SerialVersioUID?





Thanks in advance
6 years ago
Hi,


why main is static in java ?as i know, main should be called by JVM Before any object creation that why it is declared as static,
apart from this any other reasons?


Thanks in advance
6 years ago
Thank you Martin
6 years ago
Hi,


Difference between Delete,Truncate and Drop is


Delete is DML statetment.it only removes the data from table and can use WHERE Clause with it and it can be rolled back.
Truncate is DDL statement .This command delete data from the table .but leaves table structure for future use.It cannot be rolled back
.
Drop is DDL statement .It removes the table from data dictionary and as well drop the storage held by this table.It cannot be rolled back...

am i correct or missing something ,then please correct me...

Thanks in advance
6 years ago
Hi,



when we implement serialization in bean class it implicitly implement deep cloning ,my doubt is that when we deserialize the same class still object will be implement deep cloning?



Thanks in advance
6 years ago
NoClassDefFoundError- is thrown at runtime when classloader not find that partciular class or jar in classpath.

ClassNotFondException is thrown when classloader not find that particular class or jar at compile -time


am i correct? anything i am missing ....

6 years ago
Hi,


what is difference between ClassNotFoundException and NoClassDefFoundError?


Thanks in advance
6 years ago
Hi,


Volatile Variable is stored in main memory so that all thread can access the updated volatile variable.what is this main memory exactly in JVM ?How it stores volatile variable?
Hi ,


why it is necessary to override equal() and hashcode() in user defined object in collection where as while using wrapper classes object no need to override this two methods?

Thanks in advance

6 years ago
Hi,


Is Action class is part of controller or model?i am confused


Thanks in advance
6 years ago