1 answer
A wrapper or container class is a class, a data structure, or an abstract data type whose instances are collections of other objects. In Apex and Visualforce this type of class can be extremely useful but to a new developer the talk of wrapper classes may fly right over your head. Here I will supply a simple demo of how wrapper classes can be used.
http://wiki.developerforce.com/page/Wrapper_Class
http://www.embracingthecloud.com/2013/09/06/SalesforceApexWrapperClass.aspx
http://theblogreaders.com/what-is-wrapper-class-and-use-of-wrapper-class-in-salesforce/#.UnoRr5Q-J7c
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Shiv
