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Generics Whizlabs

 
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This is Whizlabs questions. Could you please advice on the following comments ?
 
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what is it you want to know? what exactly is your question??
 
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Saibabaa Pragada wrote:


above method argument means that we can pass any list that extends String but we cannot add elements to it

Saibabaa Pragada wrote:


and above method means that we can pass list of anything that is super type of String and we can ADD either String
or subype of String
(subtype of String is not possible as it is final class)

this may be a little difficult to understand so consider following example



hope this helps

 
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