publicclassEnumByIndexExample{publicstaticvoidmain(String[]args){intindex=2;// 索引值Colorcolor=Color.values()[index];System.out.println("Color at index "+index+" is "+color);}} 1. 2. 3. 4. 5. 6. 7. 8. 9. 在上面的示例中,我们首先定义了一个整型变量index,表示要获取的枚举常量的索...
51CTO博客已为您找到关于java获取enum的index的相关内容,包含IT学习相关文档代码介绍、相关教程视频课程,以及java获取enum的index问答内容。更多java获取enum的index相关解答可以来51CTO博客参与分享和学习,帮助广大IT技术人实现成长和进步。
publicintgetValue(); publicbooleanisRest(); publicstaticcom.hmw.test.EnumTest[] values(); publicstaticcom.hmw.test.EnumTest valueOf(java.lang.String); com.hmw.test.EnumTest(java.lang.String,int,int, com.hmw.test.EnumTest); } 所以,实际上 enum 就是一个 class,只不过 java 编译器帮我们做...
publicint getIndex() { return index; } publicvoid setIndex(int index) { this.index = index; } } 用法四:覆盖枚举的方法 下面给出一个toString()方法覆盖的例子。 publicenum Color { RED("红色",1), GREEN("绿色",2), BLANK("白色",3), YELLO("黄色",4); // 成员变量 private String name...
put方法源码public V put(K key, V value) {typeCheck(key);int index = key.ordinal();Object ...
valueOf(String name) 由名称获取枚举类中定义的常量 直接看例子吧: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 enumShrubbery{GROUND,CRAWLING,HANGING}publicclassEnumClassTest{publicstaticvoidmain(String[]args){//values 返回enum实例的数组for(Shrubbery temp:Shrubbery.values()){// name 返回实例...
get(0)); //null // 多个入参时,要么都使用参数匹配器,要么都不使用,否则会异常 when(mockMap.put(anyString(), anyInt())).thenReturn("value3"); System.out.println(mockMap.put("key3", 3)); //value3 System.out.println(mockMap.put(anyString(), anyInt())); //value3 System.out....
StringIndexOutOfBoundsException StringMonitor StringMonitorMBean StringNameHelper StringReader StringRefAddr StringSelection StringSeqHelper StringSeqHolder StringTokenizer StringValueExp StringValueHelper StringWriter Stroke Struct StructMember StructMemberHelper Stub StubDelegate StubNotFou...
Returns the Class object corresponding to this enum constant's enum type. Two enum constants e1 and e2 are of the same enum type if and only if e1.getDeclaringClass() == e2.getDeclaringClass(). (The value returned by this method may differ from the one returned by theObject.getClass()me...
Returns the Class object corresponding to this enum constant's enum type. Two enum constants e1 and e2 are of the same enum type if and only if e1.getDeclaringClass() == e2.getDeclaringClass(). (The value returned by this method may differ from the one returned by theObject.getClass()me...