Package io.microsphere.collection

Class SetUtils

  • public abstract class SetUtils
extends BaseUtils
    The utilities class for Java Set
    Since:
    1.0.0
    Author:
    Mercy
    See Also:
    Set

    • Constructor Summary

      Constructors 
      Constructor Description
      SetUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean isSet​(java.lang.Iterable<?> elements)  
      static <E> java.util.Set<E> newHashSet()  
      static <E> java.util.Set<E> newHashSet​(int initialCapacity)  
      static <E> java.util.Set<E> newHashSet​(int initialCapacity, float loadFactor)  
      static <E> java.util.Set<E> newHashSet​(java.lang.Iterable<E> elements)  
      static <E> java.util.Set<E> newHashSet​(java.util.Collection<? extends E> elements)  
      static <E> java.util.Set<E> newLinkedHashSet()  
      static <E> java.util.Set<E> newLinkedHashSet​(int initialCapacity)  
      static <E> java.util.Set<E> newLinkedHashSet​(int initialCapacity, float loadFactor)  
      static <E> java.util.Set<E> newLinkedHashSet​(java.lang.Iterable<E> elements)  
      static <E> java.util.Set<E> newLinkedHashSet​(java.util.Collection<? extends E> elements)  
      static <E> java.util.Set<E> newLinkedHashSet​(java.util.Iterator<E> elements)  
      static <E> java.util.Set<E> of​(E... elements)
      Convert to multiple elements to be LinkedHashSet
      static <E> java.util.Set<E> ofSet​(E one, E... others)
      Convert to one or more elements to be a read-only Set
      static <E> java.util.Set<E> ofSet​(java.lang.Iterable<E> elements)
      Convert to multiple elements to be LinkedHashSet
      static <T> java.util.Set<T> ofSet​(java.util.Collection<T> elements, T... others)  
      static <E> java.util.Set<E> ofSet​(java.util.Enumeration<E> elements)
      Build a read-only Set from the given elements

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • SetUtils

        public SetUtils()

    • Method Detail

      • isSet

        public static boolean isSet​(java.lang.Iterable<?> elements)

      • of

        public static <E> java.util.Set<E> of​(E... elements)
        Convert to multiple elements to be LinkedHashSet
        Type Parameters:
        E - the type of elements
        Parameters:
        elements - one or more elements
        Returns:
        read-only Set

      • ofSet

        @Nonnull
public static <E> java.util.Set<E> ofSet​(java.util.Enumeration<E> elements)
        Build a read-only Set from the given elements
        Type Parameters:
        E - the type of elements
        Parameters:
        elements - one or more elements
        Returns:
        non-null read-only Set

      • ofSet

        public static <E> java.util.Set<E> ofSet​(java.lang.Iterable<E> elements)
        Convert to multiple elements to be LinkedHashSet
        Type Parameters:
        E - the type of elements
        Parameters:
        elements - one or more elements
        Returns:
        read-only Set

      • ofSet

        public static <E> java.util.Set<E> ofSet​(E one,
                                         E... others)
        Convert to one or more elements to be a read-only Set
        Type Parameters:
        E - the type of elements
        Parameters:
        one - one element
        others - others elements
        Returns:
        read-only Set

      • ofSet

        public static <T> java.util.Set<T> ofSet​(java.util.Collection<T> elements,
                                         T... others)

      • newHashSet

        public static <E> java.util.Set<E> newHashSet​(java.lang.Iterable<E> elements)

      • newHashSet

        public static <E> java.util.Set<E> newHashSet​(java.util.Collection<? extends E> elements)

      • newHashSet

        public static <E> java.util.Set<E> newHashSet()

      • newHashSet

        public static <E> java.util.Set<E> newHashSet​(int initialCapacity)

      • newHashSet

        public static <E> java.util.Set<E> newHashSet​(int initialCapacity,
                                              float loadFactor)

      • newLinkedHashSet

        public static <E> java.util.Set<E> newLinkedHashSet​(java.lang.Iterable<E> elements)

      • newLinkedHashSet

        public static <E> java.util.Set<E> newLinkedHashSet​(java.util.Iterator<E> elements)

      • newLinkedHashSet

        public static <E> java.util.Set<E> newLinkedHashSet​(java.util.Collection<? extends E> elements)

      • newLinkedHashSet

        public static <E> java.util.Set<E> newLinkedHashSet()

      • newLinkedHashSet

        public static <E> java.util.Set<E> newLinkedHashSet​(int initialCapacity)

      • newLinkedHashSet

        public static <E> java.util.Set<E> newLinkedHashSet​(int initialCapacity,
                                                    float loadFactor)