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