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- - Sorting Strings (http://www.daniweb.com/forums/thread153591.html)

eyndyel

Oct 26th, 2008 9:14 am

Sorting Strings

I'm currently trying to make a mini dictionary. To do it i need to learn how to sort strings in alphabetical order. Can anyone tell me or give me a hint as to how am i going to sort the words in alphabetical order.

darkagn

Oct 26th, 2008 9:57 am

Re: Sorting Strings

The String method compareToIgnoreCase should do the trick. For example:

int result = string1.compareToIgnoreCase(string2);

// here result < 0 if string1 > string2

// or result = 0 if string1 == string2

// or result > 0 if string1 < string2

That should give you a start anyway. Have a go and see what you can come up with.

~s.o.s~

Oct 26th, 2008 11:09 am

Re: Sorting Strings

> Can anyone tell me or give me a hint as to how am i going to sort the words
> in alphabetical order.

Look into the Collections#sort method which takes a

Comparator

instance to facilitate custom sorting.

BestJewSinceJC

Oct 26th, 2008 6:59 pm

Re: Sorting Strings

Quote:

Originally Posted by darkagn (Post 721764)

The String method compareToIgnoreCase should do the trick. For example:

int result = string1.compareToIgnoreCase(string2);

// here result < 0 if string1 > string2

// or result = 0 if string1 == string2

// or result > 0 if string1 < string2

That should give you a start anyway. Have a go and see what you can come up with.

Are you sure about that? I thought it just added the value of the separate characters for each String, then compared those values. Which would not put them in alphabetical order. I'm not saying you're wrong, just curious.

darkagn

Oct 27th, 2008 12:25 am

Re: Sorting Strings

Quote:

Originally Posted by BestJewSinceJC (Post 721996)

No, the compareToIgnoreCase method's documentation in the API states that it compares the two strings "lexicographically", meaning that they are compared according to where they would be placed in a dictionary. The documentation also states that locales are ignored, but I'm not entirely sure what they mean by that, perhaps accented characters as seen in French or the umlaut in German are not considered?

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