generics: <E>, <K>, ...

[Timo Nentwig]

Hi!

Tiger's sources contain lots of generics like <E> but there's no class E
defined. What are those generics about?

Timo

 

[Roedy Green]

Tiger's sources contain lots of generics like <E> but there's no class E
defined. What are those generics about?

see http://mindprod.com/jgloss/generics.html

 

[Chris Smith]

Tiger's sources contain lots of generics like <E> but there's no class E
defined. What are those generics about?

Looks to me like those are parameterized type names; they fill in for
the real generic type parameters, so they aren't supposed to be existing
classes.

Just a guess.

--
www.designacourse.com
The Easiest Way to Train Anyone... Anywhere.

Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation

 

[David Rabinowitz]

http://java.sun.com/j2se/1.5/pdf/ generics-tutorial.pdf

David

 

[mromarkhan]

Hi!

Tiger's sources contain lots of generics like <E> but there's no class E
defined. What are those generics about?

Timo

Peace be unto you.
Just a naming convention (a nomenclature, if you like)
for the formal type parameters.
E is for element
K is for keys
....S is for cases where T is used
T is for type variables
U... is for cases where T is used
V is for values
? is for unknown type
& is for multiple bounds

Have a good day.

-- References (pdf)
Gilad Bracha covers the use of
generics in j2se 1.5 (Tiger, if you like)
http://java.sun.com/j2se/1.5/pdf/generics-tutorial.pdf