七千米

/**
* 字符串扩展工具
*
* @author leizhimin 2008-10-23 13:23:09
*/
public class StringUtil {

        /**
         * 将一个字符串的首字母改为大写或者小写
         *
         * @param srcString 源字符串
         * @param flag            大小写标识，ture小写，false大些
         * @return 改写后的新字符串
         */
        public static String toLowerCaseInitial(String srcString, boolean flag) {
                StringBuilder sb = new StringBuilder();
                if (flag) {
                        sb.append(Character.toLowerCase(srcString.charAt(0)));
                } else {
                        sb.append(Character.toUpperCase(srcString.charAt(0)));
                }
                sb.append(srcString.substring(1));
                return sb.toString();
        }

        /**
         * 将一个字符串按照句点（.）分隔，返回最后一段
         *
         * @param clazzName 源字符串
         * @return 句点（.）分隔后的最后一段字符串
         */
        public static String getLastName(String clazzName) {
                String[] ls = clazzName.split(\"\\\\.\");
                return ls[ls.length - 1];
        }

        public static void main(String[] args) {
                System.out.println(\"转换后的字符串为：\" + toLowerCaseInitial(\"Attxxdds\", true));
                System.out.println(\"--------------\");
                System.out.println(\"最后一段字符串为：\" + getLastName(\"aaa.bbb.ccc\"));
        }
}

转换后的字符串为：attxxdds
--------------
最后一段字符串为：ccc

Process finished with exit code 0