regex - Regular expression to remove everything but words. java -


this code doesn't seem doing right job. removes spaces between words!

input = scan.nextline().replaceall("[^a-za-z0-9]", "");

i want remove spaces , numbers or abbreviations string, except words , character: '.

for example:

input: 34 4ff$#@d 1 233 r # o'clock 329riewio23

returns: one o'clock

public static string filter(string input) {     return input.replaceall("[^a-za-z0-9' ]", "").replaceall(" +", " "); }

the first replace replaces characters except alphabetic characters, single-quote, , spaces. second replace replaces instances of 1 or more spaces, single space.


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