如何将short转换成string

public class test
{
    public static void main(String[] args)
    {
        short a = 999;
        String s = Integer.toHexString(a).toUpperCase();
        for (int i=0,n=s.length(); i<n; i+=2)
        {
            if (i == (n-1))  System.out.print("0"+s.charAt(i));
            else  System.out.print(""+s.charAt(i)+s.charAt(i+1));
            System.out.print(" ");
        }
    }
}