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how hashtable is synchronized?why hashmap is not synchronized?Can we make hashmap synchronized?
karthi1106
- Dec 10th, 2009
Vector/Hashtable Original classes before the introduction of Collections API. Vector & Hashtable are synchronized. Any method that touches their contents is thread-safe. ArrayList/HashMap So...
ssubhajit
- Nov 25th, 2009
Use the Code below to make a Hashmap synchronized ...Hashmap objHashmap = Collections.synchronizedMap(new HashMap(....));
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how do i upload a file from client side to server side using servlet and jsp this will happen when I click upload button on web-page?
rameshbabukm
- May 26th, 2007
If u r using jsp then ur form should look like thisand a file upload tagand from the java side use the any open source file reader likeimport org.apache.commons.fileupload.*;which will read the file from http request contentRegardsRamesh
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What is an iterator?
vidhudatta
- Sep 23rd, 2009
Iterator is an object that allows the programmer to traverse through the entire collection.
shwetashreemal
- Jul 25th, 2009
Iterator is a class that is used to traverse through the objects maintained by a container class.these are five types are:-1.Input iterator2.output iterator3.forward iterator4.bidirectional iterator5....
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How to ask general questions like what are your strengths and weaknesses?
santrokumar
- Apr 9th, 2008
Sincerity towards a work I do it until I finish it. And my weakness is am too much sincere which makes other work on pending as I am a person who believe in completing one work first and jump into oth...
sakshya
- Mar 18th, 2008
My sregnth is to get whatever i want &till it will not obtained try try.......
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How is serialization implemented in Java
Rajesh G
- Aug 3rd, 2007
Serialization is the mechanism of converting the state of an object to stream of bytes to a persistant storage area(file). By making an object serializable we are making the object as network enabled.Rajesh
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What are the modes of parameters that can be passed to a procedure ?
IN,OUT,IN-OUT parameters.
KSPRADEEP
- Oct 17th, 2012
Two modes of parameters are available to pass the parameter In and Out, the default parameter is IN. In : Lets you pass a value to subprogram being called.It can not be changed inside the parameter(...
g_sidhu
- Jan 31st, 2008
IN (default): Passes a constant value from the calling environment into the procedureOUT :Passes a value from the procedure to the calling environmentIN OUT :Pa...
