CSE 341 - Programming Languages - Autumn 2006

Java Generics & Nested Classes

Code examples

You can download and run these if you want:

ArrayTest.java - demonstrates covariant typing rule for arrays)
OldLinkedListExample.java - Linked list example without generics
LinkedListExample.java - Linked list of integers with generics
ObjectLinkedListExample.java - Linked list of objects with generics
Wild1.java - simple example of using a wildcard
Wild2.java - method with a wildcard
Wild3.java - method with a bounded wildcard
OldMyArray.java - an array-like class (written without generics)
MyArray.java - an array-like class (written with generics)

Advanced Code examples

These examples illustrate topics beyond what we will officially cover in 341.

Wild4.java - example of casting a generic of unknown (wildcard) type to a known type

References

Gilad Bracha's useful tutorial on Java Generics
The Java API documentation - see the collection classes for lots of examples of using generics