In this guide to Java enum with string values, learn to create enum using strings, iterate over all enum values, get enum value and to perform reverse lookup to find enum by string parameter. In thisguide to Javaenumwith string values, learn tocreate enum using strings, iterate over all e...
valueOf(),name(), andordinal(), further increase the utility and effectiveness of enum. Combined with the type of safety the enum ensures, these features make it an indispensable part of the Java programming language.
https://dzone.com/articles/java-enums-how-to-make-much-more-useful https://stackoverflow.com/questions/19600684/java-enum-with-multiple-value-types https://docs.oracle.com/javase/8/docs/api/
template <typename T> void print_fn(){ #if __GNUC__ || __clang__ std::cout << __PRETTY_FUNCTION__ << std::endl; #elif _MSC_VER std::cout << __FUNCSIG__ << std::endl; #endif } print_fn<int>(); // gcc and clang => void print_fn() [with T = int] // msvc =...
publicclassSenerioTest{publicstaticvoidmain(String[]args)throws Exception{StreamExecutionEnvironment env=StreamExecutionEnvironment.createLocalEnvironmentWithWebUI(newConfiguration());env.setParallelism(1);env.setStreamTimeCharacteristic(TimeCharacteristic.ProcessingTime);env.addSource(newSourceFunction<SourceModel>()...
EnumWithMultipleValues.java importjava.util.Arrays;importjava.util.Optional;publicclassEnumWithMultipleValues{publicstaticvoidmain(String[]args){//Print all enum and valuesfor(AccountStatusas:AccountStatus.values()){System.out.println("Status "+as.getCode()+" is : "+as.getFullName());}//Rever...
fastjson提供的JSON.toJSONString(...)有很多重载的方法,例如: public staticString toJSONString(Object object, SerializeConfig config, SerializerFeature... features) 所以,fastjson可以通过设置SerializeConfig来配置enum的序列化。 public static void main(String[] args) { ...
[Android.Runtime.Register("valueOf", "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;", "")] [Java.Interop.JavaTypeParameters(new System.String[] { "T extends java.lang.Enum<T>" })] public static Java.Lang.Object ValueOf (Java.Lang.Class enumClass, string name); 參數 enumCla...
sprintf 是个变参函数，定义如下： int sprintf( char *buffer, const char *format [, argument] ....
value String the serialized value to parse. Returns CachingType the parsed CachingType object, or null if unable to parse. toString() public String toString() Returns String Overrides java.lang.Enum.toString() valueOf(String name) public static CachingType valueOf(String name) Paramet...