New PDF release: Java Generics and Collections


By Naftalin M., Wadler P.

ISBN-10: 0596527756

ISBN-13: 9780596527754

This complete advisor indicates you ways to grasp crucial adjustments to Java because it used to be first published. Generics and the vastly extended assortment libraries have drastically elevated the ability of Java five and Java 6. yet they've got additionally careworn many builders who havent identified find out how to benefit from those new features.
Java Generics and Collections covers every thing from the main uncomplicated makes use of of generics to the strangest nook circumstances. It teaches you every thing you must learn about the collections libraries, so youll consistently comprehend which assortment is acceptable for any given job, and the way to take advantage of it.

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Extra info for Java Generics and Collections

Sample text

To put elements into the structure we need another kind of wildcard, as explained in the next section. 3 Wildcards with super Here is a method that copies into a destination list all of the elements from a source list, from the convenience class Collections: public static void copy(List dst, List

4 Comparator | 41 public static Comparator> listComparator(final Comparator

7 Wildcard Capture When a generic method is invoked, the type parameter may be chosen to match the unknown type represented by a wildcard. This is called wildcard capture. Collections, which accepts a list of any type and reverses it. > list); public static void reverse(List list); The wildcard signature is slightly shorter and clearer, and is the one used in the library. size()-i-1)); } } This copies the argument into a temporary list, and then writes from the copy back into the original in reverse order.

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Java Generics and Collections by Naftalin M., Wadler P.

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