/*** 首字母转大写、驼峰命名* * @param s 待转换的字符串* @return 转换结果*/public static String initialToCapital(String s) {StringBuilder sb = new StringBuilder();if (s == null || s.trim().isEmpty()) {return sb.toString();}if (s.length() <= 1) {return sb.append(s).toString().toUpperCase();}String[] split = s.split("_");for (String string : split) {sb.append(string.substring(0, 1).toUpperCase());sb.append(string.substring(1).toLowerCase());}return sb.toString();}/*** 首字母转小写、驼峰转下划线* * @param s 待转换的字符串* @return 转换结果*/public static String capitalToInitial(String s) {StringBuilder sb = new StringBuilder();if (s == null || s.trim().isEmpty()) {return sb.toString();}if (s.length() <= 1) {return sb.append(s).toString().toLowerCase();}for (int i = 0; i < s.length(); i++) {char charAt = s.charAt(i);if (Character.isUpperCase(charAt)) {sb.append("_");sb.append(Character.toLowerCase(charAt));} else {sb.append(charAt);}}return sb.toString();}
分类: Java基础