@Test @DisplayName("lcase converts properly normal not empty string that starst with a letter") void lcaseConverts() { assertEquals("abc", lcase("Abc")); }
public static String lcase(String s) { return xcase(s, Character::toLowerCase); }
CaseTools { public static String lcase(String s) { return xcase(s, Character::toLowerCase); } }
CaseTools { public static String lcase(String s) { return xcase(s, Character::toLowerCase); }  }
CaseTools { public static String lcase(String s) { return xcase(s, Character::toLowerCase); }  static String lcase(String s); static String ucase(String s); static String camel(String s); static String snake(String s); }
CaseTools { public static String lcase(String s) { return xcase(s, Character::toLowerCase); }  static String lcase(String s); static String ucase(String s); static String camel(String s); static String snake(String s);  }