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JSP Fragment
What is JSP Fragment?
shamli85
- Apr 2nd, 2010
JSP Fragments is a new feature of JSP 2.0 that allows page authors to create custom action fragments that can be invoked. It allows a portion of JSP code to be encapsulated into a Java object that can...
atmarammuduli
- Jul 30th, 2008
Fragments Refer to Portal Technology.Where The Portal Server Takes the JSF fragments from different portlets (Sources) and integrate in a page(portal).You can refer igoogle/my.yahoo.com for see it hap...
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Java Singleton Class
How to create a class that has only one object?
atmarammuduli
- Jul 10th, 2008
Refer my previos rep:Method 3 is a way to create per thread singleton object. ie. every thread will have its own singleton object for its own disposal.Method 2,1 will fall into a waiting state for singleton object until freed from other thread, adding to performance issue.
atmarammuduli
- Jul 10th, 2008
There r several way to create Singleton object:1. By using single static private object & using a static method while returning same object on every call. 2. using a static boolean flag for checki...
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How to add new column in the existing table at our desired location?
panwar_5
- Jan 8th, 2011
This can be done eaisly using the keyword after,suppose you want to add a column "name" after the field "id".Alter table emp add name varchar2 after id
Ramkiran_79
- Aug 6th, 2010
You cannot have user defined syntaxes in Oracle, still it is implemented, following error will be thrown. 1* alter table employee add (age number(10)) after enameSQL> /alter table employee add (a...
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Is it possible to serialize a single member in a class?
suppose i have 2 members in my class can i serialize a single member? Is there any way to do that?
ashutoshwithashi
- Feb 13th, 2010
Yes, it is possible to serialize a single member in a class from the externializable interface as we can control the searization process with the and by searilizing the single memer through writeExternal() and readExternal() method we can do it.
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Transient and Volatile.
What is the difference between Transient and Volatile. Does volatile variable is serialized and synchronised.
Sarje
- Aug 14th, 2009
Transient State of an object can be saved (write to any file) if the class implements java.io.Serializable interface. In this case all of the field's value will be saved. If we want any of the fie...
atmarammuduli
- Jun 17th, 2008
Volatile:Threads dont cache method copy of Volatile instance variables. Each time when the var is used the thread gets latest copy.Transient:instance var not serialized ever. After deserialization its value is null(object) or zero(primitive type).
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An interface contains _________ methods
Skill/Topic: InheritanceA) AbstractB) Non-abstract C) Implemented D) Un-implemented
