jsp连接字符串的代码(不错)

//连接字符串
//www.jb200.com
public static String join(Object array[], String separator)
{
        if(array == null)
            return null;
        if(separator == null)
            separator = "";
        int arraySize = array.length;
        int bufSize = arraySize != 0 ? arraySize * ((array[0] != null ? array[0].toString().length() : 16) + (separator == null ? 0 : separator.length())) : 0;
        StringBuffer buf = new StringBuffer(bufSize);
        for(int i = 0; i < arraySize; i++)
        {
            if(separator != null && i > 0)
                buf.append(separator);
            if(array[i] != null)
                buf.append(array[i]);
        }

        return buf.toString();
    }