import java.util.regex.*;

public class Test4{
    public static void main(String[] args){
        String regex="(?<=<li>)([^<>]+)(?=[;\\s])";
        String str="<li>1-212； <li>2-eiewrw； </li> <li>3-7841； <li>4-93993 ";
        Pattern pa=Pattern.compile(regex);
        Matcher matcher=pa.matcher(str);
        while(matcher.find()){
            System.out.println(matcher.group(1));
        }
    }

}