字符串重组问题

Question

public class TestString
{
    public static void main(String[] args)
    {
        String s=",,,aabbcc,,dfdfe,,,ee,gaafdf,,aadf,,,";
        java.util.StringTokenizer st = new java.util.StringTokenizer(s,",");
        String t="";
        while (st.hasMoreElements())
        {
            t+=","+st.nextElement();
        }
        t = t.substring(1,t.length());
        System.out.println(t);
    }}

Answer 1

输出：
aabbcc,dfdfe,ee,gaafdf,aadf