Remove all non alphabetic characters from a String array in java

Question

I\'m trying to write a method that removes all non alphabetic characters from a Java String[] and then convert the String to an lower case string. I\'ve tried u

Answer 1

You need to assign the result of your regex back to lines[i].

for ( int i = 0; i < line.length; i++) {
  line[i] = line[i].replaceAll("[^a-zA-Z]", "").toLowerCase();
}