Java ÕýÔò±í´ïʽ ×Ö·û´®Æ¥Åä

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class JavaBasic {
     public static void main(String[] args){
      StringBuffer sd = new StringBuffer();
      String hhhString="adlkll";
      Pattern pattern = Pattern.compile("[A-Za-z]*");
      Matcher matcher = pattern.matcher(hhhString);
      if (matcher.matches()){
       System.out.println("·ûºÏÒªÇó");
      } else {
       System.out.println("²»·ûºÏÒªÇó");    //ÊÇ·ñ·ûºÏÕýÔò±í´ïʽÄÚÈÝ
      }
     
//      hhhString=hhhString.replace(" ", ",");
      String[] ss1=hhhString.trim().split(" ");
      System.out.println(ss1.length);
      for(int i=0;i<ss1.length;i++){
       sd.append(ss1[i]);                           //×Ö·û´®Á¬½Ó,Èç¹ûÑ¡lengsh-i,¿ÉÒÔÈ·¶¨Ñ¡µÚ¼¸¸ö×Ö·û´®
       
      }
      System.out.println(sd.toString());
     
     
     StringBuffer sb = new StringBuffer();
   String s = "  ab ce as";
      String[] ss =s.trim().split(" ");
      System.out.println(ss.length);
      for(int i=0;i<ss.length;i++){
       sb.append(ss[i]);                            //ÏÔʾȫ²