package com.google.checkstyle.test.chapter2filebasic.rule21filename; @interface MyAnnotation1 { //ok String name(); int version(); } @MyAnnotation1(name = "ABC", version = 1) public class InputOuterTypeFilename1 //ok { } enum Enum1 //ok { A, B, C; Enum1() {} public String toString() { return ""; //some custom implementation } } interface TestRequireThisEnum //ok { enum DAY_OF_WEEK { SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY } }