Trie data structures – Java [closed]
You could read up on Java Trie or look at trie.
You could read up on Java Trie or look at trie.
This is my own code, pulled from my answer to How to find a word from arrays of characters? : public class Trie { public struct Letter { public const string Chars = “ABCDEFGHIJKLMNOPQRSTUVWXYZ”; public static implicit operator Letter(char c) { return new Letter() { Index = Chars.IndexOf(c) }; } public int Index; public char … Read more
Advantages of tries: The basics: Predictable O(k) lookup time where k is the size of the key Lookup can take less than k time if it’s not there Supports ordered traversal No need for a hash function Deletion is straightforward New operations: You can quickly look up prefixes of keys, enumerate all entries with a … Read more
if you are looking for an ANSI C implementation you can “steal” it from FreeBSD. The file you are looking for is called radix.c. It’s used for managing routing data in kernel.
You might want to look at the Trie implementation that Limewire is contributing to the Google Guava.
Unwind is essentially correct that there are many different ways to implement a trie; and for a large, scalable trie, nested dictionaries might become cumbersome — or at least space inefficient. But since you’re just getting started, I think that’s the easiest approach; you could code up a simple trie in just a few lines. … Read more