日期:2014-05-20 浏览次数:20870 次
//首字母转小写 public static String toLowerCaseFirstOne(String s) { if(Character.isLowerCase(s.charAt(0))) return s; else return (new StringBuilder()).append(Character.toLowerCase(s.charAt(0))).append(s.substring(1)).toString(); } //首字母转大写 public static String toUpperCaseFirstOne(String s) { if(Character.isUpperCase(s.charAt(0))) return s; else return (new StringBuilder()).append(Character.toUpperCase(s.charAt(0))).append(s.substring(1)).toString(); }