io.ObjectStreamException; public abstract class Enum<E extends Enum<E>> implements Comparable<E>, Serializable { private final String name; public final String name() { return name; } private final int ordinal;
privatestaticfinal Map<String, Blah>stringToEnum=newHashMap<String, Blah>(); static{ //Initialize map from constant name to enum constant for(Blah blah : values()) { stringToEnum.put(blah.toString(), blah); } } //Returns Blah for string, or null if string is invalid publicstaticBlah ...
Stringname){Tresult=enumType.enumConstantDirectory().get(name);if(result!
}publicString getText() {returnthis.text; }//Implementing a fromString method on an enum typeprivatestaticfinalMap<String, Blah> stringToEnum =newHashMap<String, Blah>();static{//Initialize map from constant name to enum constantfor(Blah blah : values()) { stringToEnum.put(blah.toString()...
* @return the name of this enum constant */publicStringtoString(){returnname;} equals():从其实现来看, 我们程序中使用==或者equals来判断两个枚举相等都是一样的. 代码语言:javascript 代码运行次数:0 运行 AI代码解释 publicfinal booleanequals(Object other){returnthis==other;} ...
publicenumclassStringConstantType Inheritance Enum StringConstantType Fields NameValueDescription SingleQuoted0 A string enclosed in single quotes, e.g.'some text'. SingleQuotedHereString1 A here string enclosed in single quotes, e.g.@' a here string '@ ...
"No enum constant " + enumType.getCanonicalName() + "." + name); } private static final BasicLruCache<Class<? extends Enum>, Object[]> sharedConstantsCache = new BasicLruCache<Class<? extends Enum>, Object[]>(64) { @Override protected Object[] create(Class<? extends Enum> enumType...
An intro to number-based enums When do we need string-based enums? Constant and computed enums Specifying enum member values String literals and union types Use cases and the importance of string-based enums Comparing number- and string-based enums Enums at runtime and compile time...
The return value is formatted with the general format specifier ("G"). That is, if theFlagsAttributeis not applied to this enumerated type and there is a named constant equal to the value of this instance, then the return value is a string containing the name of the constant. If theFlag...
An enum is a way to organize a collection of related values. Many other programming languages (C/C#/Java) have anenum enumCardSuit{Clubs,Diamonds,Hearts,Spades}// Sample usagevarcard=CardSuit.Clubs;// Safetycard="not a member of card suit";// Error : string is not assignable to type ...