我不知道應該怎么將字符串的第一個字母轉換為大寫：rackingSystem.toLowerCase(); // has capitals in every word, so first convert all to lower case
StringBuilder rackingSystemSb = new StringBuilder();
rackingSystemSb.append(rackingSystem);
rackingSystemSb.setCharAt(0, Character.toUpperCase(rackingSystemSb.charAt(0)));
rackingSystem = rackingSystemSb.toString();這段代碼好像沒有用。請大蝦指點，謝謝。
1 回答
MYYA
TA貢獻1868條經(jīng)驗 獲得超4個贊
StringBuilder rackingSystemSb = new StringBuilder( rackingSystem.toLowerCase()); rackingSystemSb.setCharAt(0, Character.toUpperCase(rackingSystemSb.charAt(0))); rackingSystem = rackingSystemSb.toString();
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