Streams from Char Sequence

Description

chars() from the CharSequence interface returns an IntStream whose elements are int values representing the characters.

We can use chars() method on a String, a StringBuilder, and a StringBuffer.

Example

The following code creates a stream of characters from a string, filters out all digits and whitespaces, and prints the remaining characters:

//  w ww  . ja  va  2 s .co  m
public class Main {
  public static void main(String[] args) {
    String str = "5 123,123,qwe,1,123, 25";
    str.chars()
    .filter(n ->  !Character.isDigit((char)n) &&   !Character.isWhitespace((char)n))
    .forEach(n ->  System.out.print((char)n));

  }
}

The code above generates the following result.