There is a line in which you need to find letters from which you can make a certain word, i.e. each letter must appear at least once.
String s=" oasd c ";
Regular expression to it `
Pattern pattern = Pattern.compile("c+ & o+"); Matcher matcher = pattern.matcher(toReturn); return matcher.find();`
Doesn't work, should return true but return false How to write an expression that will check a string where each letter that will be specified occurs one or more times. I tried it in different ways, it took an hour.
Positive Lookahead can be used. For example, for the expression
and test suite
мама мыра раму мама мыра ртаму трам тран
lines will be matched
мама мыра ртаму трам