Monday, March 9, 2009

Type Parameter Naming Conventions  

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By convention, type parameter names are single, uppercase letters. This stands in sharp contrast to the variable naming conventions that you already know about, and with good reason: Without this convention, it would be difficult to tell the difference between a type variable and an ordinary class or interface name. 

The most commonly used type parameter names are: 
E - Element (used extensively by the Java Collections Framework) 
K - Key 
N - Number 
T - Type 
V - Value 
S,U,V etc. - 2nd, 3rd, 4th types 
You'll see these names used throughout the Java SE API and the rest of this tutorial.

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