如何在Java中将String转换为没有空格的char数组？

Question

Hi everybody I writing java code which counts characters. When I convert String using toCharArray I cant use regex to eliminate whitespaces.

    System.out.println( "Enter a string:" ); 
    String input = scanner.nextLine();

    // tokenize the input
    char[] chars = input.toCharArray();

Answer 1

This:

input.replaceAll(" ", "").toCharArray()

Probably better to use length() to count the chars though...