Method array2String

src/main/java/Util.java:147–157

(Object[] objects,String lineHeader)

    public static String array2String(Object[] objects,String lineHeader){
        StringBuilder builder = new StringBuilder();
        if(objects==null || objects.length==0){
            return "";
        }
        builder.append(lineHeader + ":[");
        for(Object o:objects){
            builder.append(o.toString() + ",");
        }
        return builder.substring(0,builder.length()-1) + "]";
    }


    // 寻找字符串中字符出现的所有位置