Alternatively, you can use the EnumSet.allOf() method to convert the enum into a set and iterate over its values: EnumSet.allOf(Days.class).forEach(System.out::println); Iterate over enum values using Streams
publicenumElement{// ... enum valuesprivatestaticfinalMap<String, Element> BY_LABEL =newHashMap<>();static{for(Element e: values()) { BY_LABEL.put(e.label, e); } }// ... fields, constructor, methodspublicstaticElementvalueOfLabel(String label){returnBY_LABEL.get(label); } } As a...
Enumsdon’t have methods for iteration, likeforEach()oriterator(). Instead, we can use the array of theEnumvalues returned by thevalues()method. 2.1. Iterate UsingforLoop First, we can simply use the old-schoolforloop: for (DaysOfWeekEnum day : DaysOfWeekEnum.values()) { System.out.pri...
T[] values = getSharedConstants(enumType); if (values == null) { throw new IllegalArgumentException(enumType.toString() + " is not an enum type."); } // Iterate backwards through the array to retain historic Android behavior in the // unexpected / likely invalid case where there are ...
DisplayMode ZFLText { get; set; } [Serializable] public enum DisplayMode ...
In a real-world programming situation, you would probably use one of the supportedlooping constructsto iterate through each element of the array, rather than write each line individually as in the preceding example. However, the example clearly illustrates the array syntax. You will learn about th...
enum A Java keyword used to declare an enumerated type. enumerated type A type whose legal values consist of a fixed set of constants. exception An event during program execution that prevents the program from continuing normally; generally, an error. The Java programming language supports exception...
From static factory methods on the stream classes, such asStream.of(Object[]),IntStream.range(int, int)orStream.iterate(Object, UnaryOperator); The lines of a file can be obtained fromBufferedReader.lines(); Streams of file paths can be obtained from methods inFiles; ...
To iterate through all results across all pages, use the autoPager() method, which automatically fetches more pages as needed.When using the synchronous client, the method returns an Iterableimport com.moderntreasury.api.models.Counterparty; import com.moderntreasury.api.models.CounterpartyListPage; ...
创建Stream:Collection.stream(),Collection.parallelStream(),Arrays.stream(数组),Stream.of(T... values),Stream.iterate(),Stream.generate() 中间操作: 筛选与切片:filter(lambda),distinct(n),limit(),skip(n) 映射:map(f),flatMap(f) 排序:sorted(自然排序),sorted(Comparator com定制排序) ...