Scanner vs. StringTokenizer vs. String.Split

Question

I just learned about Java\'s Scanner class and now I\'m wondering how it compares/competes with the StringTokenizer and String.Split. I know that the StringTokenizer and Str

Answer 1

Split is slow, but not as slow as Scanner. StringTokenizer is faster than split. However, I found that I could obtain double the speed, by trading some flexibility, to get a speed-boost, which I did at JFastParser https://github.com/hughperkins/jfastparser

Testing on a string containing one million doubles:

Scanner: 10642 ms
Split: 715 ms
StringTokenizer: 544ms
JFastParser: 290ms