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wu :: forums    riddles    general problem-solving / chatting / whatever (Moderators: Eigenray, SMQ, william wu, Icarus, ThudnBlunder, Grimbal, towr)    How to write a generic sort in Java/C#? « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: How to write a generic sort in Java/C#?  (Read 5102 times) amichail Senior Riddler     Posts: 450 How to write a generic sort in Java/C#?   « on: Jun 10th, 2007, 8:49am » Quote Modify I know how but I am curious as to how many people know how to do this. « Last Edit: Jun 10th, 2007, 8:50am by amichail » IP Logged DropZap - a new kind of block elimination game towr wu::riddles Moderator Uberpuzzler Some people are average, some are just mean.     Gender: Posts: 13730 Re: How to write a generic sort in Java/C#?   « Reply #1 on: Jun 10th, 2007, 9:09am » Quote Modify I could do it in C++, but I know neither Java nor C# well enough. IP Logged Wikipedia, Google, Mathworld, Integer sequence DB amichail Senior Riddler     Posts: 450 Re: How to write a generic sort in Java/C#?   « Reply #2 on: Jun 10th, 2007, 9:11am » Quote Modify The difficulty with doing this doesn't come up in C++. IP Logged DropZap - a new kind of block elimination game amichail Senior Riddler     Posts: 450 Re: How to write a generic sort in Java/C#?   « Reply #3 on: Jun 14th, 2007, 4:56pm » Quote Modify So no Java/C# programmers here?   You need to use F-bounded polymorphism to solve this problem. IP Logged DropZap - a new kind of block elimination game towr wu::riddles Moderator Uberpuzzler Some people are average, some are just mean.     Gender: Posts: 13730 Re: How to write a generic sort in Java/C#?   « Reply #4 on: Jun 15th, 2007, 12:45am » Quote Modify on Jun 14th, 2007, 4:56pm, amichail wrote: You need to use F-bounded polymorphism to solve this problem. How is that different from the solution in C++ ? IP Logged Wikipedia, Google, Mathworld, Integer sequence DB amichail Senior Riddler     Posts: 450 Re: How to write a generic sort in Java/C#?   « Reply #5 on: Jun 15th, 2007, 4:56am » Quote Modify on Jun 15th, 2007, 12:45am, towr wrote: How is that different from the solution in C++ ? In Java/C#, you need to specify a constraint on the sorts of types allowed in the array to sort.  For example, you might say that elements of the array must implement the Comparable interface.   But it's more complicated than that.   These sorts of constraints allow you to compile generic code independently of its clients.     On a related note, if you would like to see state of the art language design, try Scala. « Last Edit: Jun 15th, 2007, 5:03am by amichail » IP Logged DropZap - a new kind of block elimination game Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ => general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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