File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
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cau give clear explanation

 
anilkumar choudary
Greenhorn
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1)is overloading is related to one class only or it can be extended in the derived class,also
2) why we need the hash code where we use it in realtime
 
Ken Blair
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1. Both. One class may have two or more methods with the same name but different signatures. When this happens it is said to be overloaded. Likewise a class may have a method with the same name and a different signature than one inherited from another class, this is still overloading.

2. See HashMap for one example.
 
Don't get me started about those stupid light bulbs.
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