class="tags" href="/tags/IMPORT.html" title=import>import class="tags" href="/tags/JAVA.html" title=java>java.util.*;
public class bycomma{

// n个数字，以逗号，分开成数组
public static String[] splitStringByComma(String source){
if(source==null||source.trim().equals(""))
return null;
StringTokenizer commaToker = new StringTokenizer(source,",");
String[] result = new String[commaToker.countTokens()];
int i=0;
while(commaToker.hasMoreTokens()){
result[i] = commaToker.nextToken();
i++;
}
return result;
}
public static void main(String args[]){
String[] s = splitStringByComma("5,8,7,4,3,9,1");

}
}
}