Java统计输入字符的英文字母、空格、数字和其它

import java.util.Scanner;public class ex7 {   public static void main(String args[])   {     System.out.println("请输入字符串：");     Scanner scan=new Scanner(System.in);     String str=scan.next();     String E1="[/u4e00-/u9fa5]";     String E2="[a-zA-Z]";     int countH=0;     int countE=0;     char[] arrChar=str.toCharArray();     String[] arrStr=new String[arrChar.length];     for (int i=0;i<arrChar.length ;i++ )     {        arrStr[i]=String.valueOf(arrChar[i]);     }     for (String i: arrStr )     {        if (i.matches(E1))        {          countH++;        }        if (i.matches(E2))        {          countE++;        }     }     System.out.println("汉字的个数"+countH);     System.out.println("字母的个数"+countE);   }}