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Answer by Johnny for What does EnumSet really mean?
An EnumSet is a specialized Set collection to work with enum classes. It implements the Set interface and extends from AbstractSet:When you plan to use an EnumSet youhave to take into consideration...
View ArticleAnswer by shashwatZing for What does EnumSet really mean?
From Joshua Bloch's book itself and in his own word:The java.util package provides EnumSet class to efficiently represent sets of values drawn from a single enum type. This class implements the Set...
View ArticleAnswer by Sarwesh Sethiya for What does EnumSet really mean?
EnumSet largeSizeEnumSet largeSize is a set of Enum values which contains XL, XXL and XXXL.Size Size is a class of Enum type with constant values S, M, L, XL, XXL, XXXL.largeSize.iterator()The Iterator...
View ArticleAnswer by Gábor for What does EnumSet really mean?
A simple Enum is a list of values that you can only select one from at a time. Using your example, a size can be only one of S, M, L, etc for any given clothing. You could use simple constants instead...
View ArticleAnswer by jeton for What does EnumSet really mean?
According to Oracle docEnum sets are represented internally as bit vectors. This representation is extremely compact and efficient.Readable, type safe, low memory footprint... What do you want more?
View ArticleAnswer by sambhu for What does EnumSet really mean?
EnumSet is specifically used for storing the enum type element and iterating over it quickly.Eg. for (Day d : EnumSet.range(Day.MONDAY, Day.FRIDAY)) System.out.println(d);The above snippet will display...
View ArticleAnswer by Hao Deng for What does EnumSet really mean?
It quickly turn any Enum elements into a set, EnumSet is yet another type of Set.public enum Style { BOLD, ITALIC, UNDERLINE, STRIKETHROUGH }EnumSet.of(Style.BOLD, Style.ITALIC);
View ArticleAnswer by Peter Lawrey for What does EnumSet really mean?
Simplifying your codeEnumSet<Size> largeSize = EnumSet.of(Size.XXXL, Size.XXL, Size.XL, Size.L);for(Size size: largeSize) System.out.print(size+"");You can see that largeSize is a regular Set...
View ArticleAnswer by Adrian Shum for What does EnumSet really mean?
Given the following example:....public static final String S = "s";public static final String M = "m";public static final String L = "l";....Set<String> sizeSet = new...
View ArticleAnswer by JB Nizet for What does EnumSet really mean?
As for any variable, its type is found in its declaration:EnumSet largeSizeSo yes, largeSize (which should be named largeSizes since it's a collection) is of type EnumSet. It should also be generified,...
View ArticleWhat does EnumSet really mean?
I have the following example:import java.util.EnumSet;import java.util.Iterator;public class SizeSet { public static void main(String[] args) { EnumSet largeSize =...
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