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Interface/Implemented class reference

 
UdayK Kumar
Greenhorn
Posts: 26
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Hi,

Could you please elaborate in depth for the below code with suitable example?

#1)
List l = new ArrayList(); // Why GOOD.

#2)
ArrayList l = new ArrayList(); // Why BAD.


I saw many of explanation for the above code, but i didn't find any example for supporting #1) code.

Please explain me in depth...


 
Muhammad Khojaye
Ranch Hand
Posts: 449
IntelliJ IDE Java Scala
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Search for 'programming to an interface'.
 
It is sorta covered in the JavaRanch Style Guide.
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