#scala #variances
Scala supports variance annotations of type parameters of
generic classes. In contrast to Java 5 (aka.
JDK 1.5), variance annotations may be added when a class abstraction is defined, whereas in Java 5, variance annotations are given by clients when a class abstraction is used.
If you want to change selection, open document below and click on "Move attachment"
Variances - Scala Documentation
<span>Scala supports variance annotations of type parameters of generic classes. In contrast to Java 5 (aka. JDK 1.5), variance annotations may be added when a class abstraction is defined, whereas in Java 5, variance annotations are given by clients when a class abstraction is used.
In the page about generic classes an example for a mutable stack was given. We explained that the type defined by the class Stack[T] is subject to invariant subtyping regarding the type Summary
| status | not read | | reprioritisations | |
|---|
| last reprioritisation on | | | suggested re-reading day | |
|---|
| started reading on | | | finished reading on | |
|---|
Details