import java.util.Arrays;

/**

 * Created by bjchengpeng on  2018/7/24.

 */

public class TrimTest {

    public static void main(String[] args) {

        String str = "6216910307514221 333";

        String[] array = str.split("\\s+");

        System.out.println(Arrays.toString(array));

        System.out.println(array.length);

        String str1 = str.replaceAll("[\\s\\u00A0]+", " ");

        String[] array1 = str1.split("\\s+");

        System.out.println(array1.length);

        System.out.println(Arrays.toString(array1));

        final char c1 = ' '; //db里的空格

        final char c2 = ' '; //手动输入的空格

        System.out.println((int) c1); //160

        System.out.println((int) c2); //32

    }

}