publicclassMain{publicstaticvoidmain(String[]args){Colorcolor=Color.getValueByKey("RED");System.out.println("Enum value: "+color);}} 1. 2. 3. 4. 5. 6. In this example, we call thegetValueByKeymethod with the key “RED” and store the returned enum constant in thecolorvariable. We...
先解决问题:通过value 获取key,通过key 获取value 参照下方原理解释。 public enum NationalityEnum { HAN("01","汉族"); NationalityEnum(String code, String desc) { this.code = code; this.desc = desc; } private String code; private String desc; public String getCode() { return code; } public...
UK, and Australia).Then create a function ‘getKeyByStringValue’, inside this create a ‘for..in’ loop that iterates over the key i.e. Property names of the enum object, and checks whether the current property value matches the input value. ...
private EnumTest(String key, String value) { this.key = key; this.value = value; } public String getKey() { return key; } public void setKey(String key) { this.key = key; } public String getValue() { return value; } public void setValue(String value) { this.value = value; }...
String className=clazz.getName();returnOptional.ofNullable(TABLE_METHOD_OF_ENUM_TYPES.computeIfAbsent(className, key ->{ Optional<Field> fieldOptional =findEnumValueAnnotationField(clazz);returnfieldOptional.map(Field::getName).orElse(null);
java.util.EnumSet和java.util.EnumMap是两个枚举集合。EnumSet保证集合中的元素不重复;EnumMap中的 key是enum类型,而value则可以是任意类型。关于这个两个集合的使用就不在这里赘述,可以参考JDK文档。 关于枚举的实现细节和原理请参考: 参考资料:《ThinkingInJava》第四版 ...
1、给枚举值的类型,通过typealias取了一个别名RawValue 2、默认添加了一个可选类型的init方法 3、增加一个计算属性rawValue,用于获取枚举值的原始值 查看SIL中的main方法,可以得知w是通过枚举值的rawValue的get方法获取 查看SIL文件rawValue的get方法,主要有以下几步: ...
Specifies key codes and modifiers. This enumeration supports a bitwise combination of its member values. C# Copy [System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.KeysConverter))] [System.Flags] public enum Keys Inheritance Object ValueType Enum Keys Attributes TypeConverterAttribute Flags...
applicationKeyType values Expand table Member clientSecret certificate unknownFutureValue plannerTaskCompletionRequirements values Expand table Member none checklistCompletion unknownFutureValue formCompletion approvalCompletion plannerApprovalStatus values Expand table Member requested approved rejected cancelled unkn...
Message Queuing returns this error if it was able to query the directory service, but the enhanced key was not found. This error applies only to Message Queuing 2.0. IllegalPrivateProperties -1072824197 The private properties parameter value is invalid. This may be because it has a null value ...