public static void main(String[] args) {        String word="天地玄黄宇宙洪荒" +                                 "日月盈昃辰宿列张" +                                 "寒来暑往秋收冬藏" +                                 "闰余成岁律吕调阳" +                                 "云腾致雨露结为霜" +                                 "金生丽水玉出昆冈" +                                 "剑号巨阙珠称夜光" +                                 "果珍李柰菜重芥姜" +                                 "海咸河淡鳞潜羽翔" +                                 "龙师火帝鸟官人皇" +                                 "始制文字乃服衣裳" +                                 "推位让国有虞陶唐" +                                 "吊民伐罪周发殷汤" +                                 "坐朝问道垂拱平章" +                                 "爱育黎首臣伏戎羌" +                                 "遐迩一体率宾归王" +                                 "鸣凤在竹白驹食场" +                                 "化被草木赖及万方" +                                 "盖此身发四大五常" +                                 "恭惟鞠养岂敢毁伤" +                                 "女慕贞洁男效才良" +                                 "知过必改得能莫忘" +                                 "罔谈彼短靡恃己长" +                                 "信使可覆器欲难量" +                                 "墨悲丝染诗赞羔羊" +                                 "景行维贤克念作圣" +                                 "德建名立形端表正" +                                 "空谷传声虚堂习听" +                                 "祸因恶积福缘善庆" +                                 "尺璧非宝寸阴是竞" +                                 "资父事君曰严与敬" +                                 "孝当竭力忠则尽命" +                                 "临深履薄夙兴温凊" +                                 "似兰斯馨如松之盛" +                                 "川流不息渊澄取映" +                                 "容止若思言辞安定" +                                 "笃初诚美慎终宜令" +                                 "荣业所基籍甚无竟" +                                 "学优登仕摄职从政" +                                 "存以甘棠去而益咏" +                                 "乐殊贵贱礼别尊卑" +                                 "上和下睦夫唱妇随" +                                 "外受傅训入奉母仪" +                                 "诸姑伯叔犹子比儿" +                                 "孔怀兄弟同气连枝" +                                 "交友投分切磨箴规" +                                 "仁慈隐恻造次弗离" +                                 "节义廉退颠沛匪亏" +                                 "性静情逸心动神疲" +                                 "守真志满逐物意移" +                                 "坚持雅操好爵自縻" +                                 "都邑华夏东西二京" +                                 "背邙面洛浮渭据泾" +                                 "宫殿盘郁楼观飞惊" +                                 "图写禽兽画彩仙灵" +                                 "丙舍旁启甲帐对楹" +                                 "肆筵设席鼓瑟吹笙" +                                 "升阶纳陛弁转疑星" +                                 "右通广内左达承明" +                                 "既集坟典亦聚群英" +                                 "杜稿钟隶漆书壁经" +                                 "府罗将相路侠槐卿" +                                 "户封八县家给千兵" +                                 "高冠陪辇驱毂振缨" +                                 "世禄侈富车驾肥轻" +                                 "策功茂实勒碑刻铭" +                                 "盘溪伊尹佐时阿衡" +                                 "奄宅曲阜微旦孰营" +                                 "桓公匡合济弱扶倾" +                                 "绮回汉惠说感武丁" +                                 "俊义密勿多士实宁" +                                 "晋楚更霸赵魏困横" +                                 "假途灭虢践土会盟" +                                 "何遵约法韩弊烦刑" +                                 "起翦颇牧用军最精" +                                 "宣威沙漠驰誉丹青" +                                 "九州禹迹百郡秦并" +                                 "岳宗泰岱禅主云亭" +                                 "雁门紫塞鸡田赤诚" +                                 "昆池碣石钜野洞庭" +                                 "旷远绵邈岩岫杳冥" +                                 "治本于农务兹稼穑" +                                 "俶载南亩我艺黍稷" +                                 "税熟贡新劝赏黜陟" +                                 "孟轲敦素史鱼秉直" +                                 "庶几中庸劳谦谨敕" +                                 "聆音察理鉴貌辨色" +                                 "贻厥嘉猷勉其祗植" +                                 "省躬讥诫宠增抗极" +                                 "殆辱近耻林皋幸即" +                                 "两疏见机解组谁逼" +                                 "索居闲处沉默寂寥" +                                 "求古寻论散虑逍遥" +                                 "欣奏累遣戚谢欢招" +                                 "渠荷的历园莽抽条" +                                 "枇杷晚翠梧桐蚤凋" +                                 "陈根委翳落叶飘摇" +                                 "游鹍独运凌摩绛霄" +                                 "耽读玩市寓目囊箱" +                                 "易輶攸畏属耳垣墙" +                                 "具膳餐饭适口充肠" +                                 "饱饫烹宰饥厌糟糠" +                                 "亲戚故旧老少异粮" +                                 "妾御绩纺侍巾帷房" +                                 "纨扇圆洁银烛炜煌" +                                 "昼眠夕寐蓝笋象床" +                                 "弦歌酒宴接杯举殇" +                                 "矫手顿足悦豫且康" +                                 "嫡后嗣续祭祀烝尝" +                                 "稽颡再拜悚惧恐惶" +                                 "笺牒简要顾答审详" +                                 "骸垢想浴执热愿凉" +                                 "驴骡犊特骇跃超骧" +                                 "诛斩贼盗捕获叛亡" +                                 "布射僚丸嵇琴阮箫" +                                 "恬笔伦纸钧巧任钓" +                                 "释纷利俗并皆佳妙" +                                 "毛施淑姿工颦妍笑" +                                 "年矢每催曦晖朗曜" +                                 "璇玑悬斡晦魄环照" +                                 "指薪修祜永绥吉劭" +                                 "矩步引领俯仰廊庙" +                                 "束带矜庄徘徊瞻眺" +                                 "孤陋寡闻愚蒙等诮" +                                 "谓语助者焉哉乎也" ;                char[] ch1 = word.toCharArray();        List
     
       list = new ArrayList<>();        for(char ch : ch1) {            if (list.contains(ch)) {                System.out.println(ch);                list.clear();            }            list.add(ch);            //System.out.println(ch);                    }        System.out.println(ch1.length);    }