Is char a white space character in Java

//from w  w w. ja  v  a  2  s  .  c o  m
public class Main {
  
   public static boolean isWhitespace(char c) {
        // Optimized case for ASCII
        if ((c >= 0x1c && c <= 0x20) || (c >= 0x9 && c <= 0xd)) {
            return true;
        }
        if (c == 0x1680) {
            return true;
        }
        if (c < 0x2000 || c == 0x2007) {
            return false;
        }
        return c <= 0x200b || c == 0x2028 || c == 0x2029 || c == 0x3000;
    }

}