Compiled from "Weekday.java"publicfinalclassWeekdayextendsjava.lang.Enum<Weekday>{publicstaticfinalWeekday MONDAY;publicstaticfinalWeekday TUESDAY;publicstaticfinalWeekday WEDNESDAY;publicstaticfinalWeekday THURSDAY;publicstaticfinalWeekday FRIDAY;publicstaticfinalWeekday SATURDAY;publicstaticfinalWeekday SUNDAY;...
// 反射获取枚举信息Class<Day> enumClass = Day.class;if(enumClass.isEnum()) {for(Field field : enumClass.getDeclaredFields()) {if(field.isEnumConstant()) { System.out.println("枚举常量: "+ field.getName()); } } } 枚举的底层原理 枚举会被编译为继承java.lang.Enum的final类: // 反...
(2)以String类为例,当JVM加载String类时,它首先读取String.class文件到内存,然后为String类创建一个Class实例并关联起来。 Class cls = new Class(String); 这个Class实例是JVM内部创建的,如果我们查看JDK源码,可以发现Class类的构造方法是private,只有JVM能创建Class实例,我们自己的Java程序是无法创建Class实例的。所...
* 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 the {@link Object#getClass} method for enum constants with * constan...
Enum(IntPtr, JniHandleOwnership) A constructor used when creating managed representations of JNI objects; called by the runtime. Enum(String, Int32) Sole constructor. Properties 展开表 Class Returns the runtime class of this Object. (Inherited from Object) DeclaringClass Returns the Class...
Returns the elements of this enum class or null if this Class object does not represent an enum type. C# [Android.Runtime.Register("getEnumConstants","()[Ljava/lang/Object;","")]publicJava.Lang.Object[]? GetEnumConstants (); Returns ...
This is the common base class of all Java language enumeration classes.C# העתק [Android.Runtime.Register("java/lang/Enum", DoNotGenerateAcw=true)] [Java.Interop.JavaTypeParameters(new System.String[] { "E extends java.lang.Enum<E>" })] public abstract class Enum : Java...
Returns the elements of this enum class or null if this Class object does not represent an enum class. C# 複製 [Android.Runtime.Register("getEnumConstants", "()[Ljava/lang/Object;", "")] public Java.Lang.Object[]? GetEnumConstants(); Returns Object[] an array containing the values...
packagecom.lxk.enumTest;/*** Java枚举用法测试* * Created by lxk on 2016/12/15*/publicclassEnumTest{publicstaticvoidmain(String[]args){forEnum();useEnumInJava();}/*** 循环枚举,输出ordinal属性;若枚举有内部属性,则也输出。(说的就是我定义的TYPE类型的枚举的typeName属性)*/privatestaticvoidfor...
public class AbstractEnum { private static final Map String, AbstractEnum nameEnumMap = new ConcurrentHashMap ();@Getter protected String name;protected AbstractEnum () { protected AbstractEnum(String name) { this.name = name;if (!nameEnumMap.containsKey(name)) { nameEnumMap.put(name, this)...