Package zombie.core.Collections

Class ZomboidHashSet<E>

java.lang.Object
java.util.AbstractCollection<E>
java.util.AbstractSet<E>
zombie.core.Collections.ZomboidHashSet<E>
All Implemented Interfaces:
Serializable, Cloneable, Iterable<E>, Collection<E>, Set<E>
public class ZomboidHashSet<E> extends AbstractSet<E> implements Set<E>, Cloneable, Serializable
See Also:

  • Constructor Details

    • ZomboidHashSet

      public ZomboidHashSet()
      Constructs a new, empty set; the backing HashMap instance has default initial capacity (16) and load factor (0.75).

    • ZomboidHashSet

      public ZomboidHashSet(Collection<? extends E> c)
      Constructs a new set containing the elements in the specified collection. The HashMap is created with default load factor (0.75) and an initial capacity sufficient to contain the elements in the specified collection.
      Parameters:
      c - the collection whose elements are to be placed into this set
      Throws:
      NullPointerException - if the specified collection is null

    • ZomboidHashSet

      public ZomboidHashSet(int initialCapacity, float loadFactor)
      Constructs a new, empty set; the backing HashMap instance has the specified initial capacity and the specified load factor.
      Parameters:
      initialCapacity - the initial capacity of the hash map
      loadFactor - the load factor of the hash map
      Throws:
      IllegalArgumentException - if the initial capacity is less than zero, or if the load factor is nonpositive

    • ZomboidHashSet

      public ZomboidHashSet(int initialCapacity)
      Constructs a new, empty set; the backing HashMap instance has the specified initial capacity and default load factor (0.75).
      Parameters:
      initialCapacity - the initial capacity of the hash table
      Throws:
      IllegalArgumentException - if the initial capacity is less than zero

  • Method Details

    • iterator

      public Iterator<E> iterator()
      Returns an iterator over the elements in this set. The elements are returned in no particular order.
      Specified by:
      iterator in interface Collection<E>
      Specified by:
      iterator in interface Iterable<E>
      Specified by:
      iterator in interface Set<E>
      Specified by:
      iterator in class AbstractCollection<E>
      Returns:
      an Iterator over the elements in this set
      See Also:

    • size

      public int size()
      Returns the number of elements in this set (its cardinality).
      Specified by:
      size in interface Collection<E>
      Specified by:
      size in interface Set<E>
      Specified by:
      size in class AbstractCollection<E>
      Returns:
      the number of elements in this set (its cardinality)

    • isEmpty

      public boolean isEmpty()
      Returns true if this set contains no elements.
      Specified by:
      isEmpty in interface Collection<E>
      Specified by:
      isEmpty in interface Set<E>
      Overrides:
      isEmpty in class AbstractCollection<E>
      Returns:
      true if this set contains no elements

    • contains

      public boolean contains(Object o)
      Returns true if this set contains the specified element. More formally, returns true if and only if this set contains an element e such that (o==null ? e==null : o.equals(e)).
      Specified by:
      contains in interface Collection<E>
      Specified by:
      contains in interface Set<E>
      Overrides:
      contains in class AbstractCollection<E>
      Parameters:
      o - element whose presence in this set is to be tested
      Returns:
      true if this set contains the specified element

    • add

      public boolean add(E e)
      Adds the specified element to this set if it is not already present. More formally, adds the specified element e to this set if this set contains no element e2 such that (e==null ? e2==null : e.equals(e2)). If this set already contains the element, the call leaves the set unchanged and returns false.
      Specified by:
      add in interface Collection<E>
      Specified by:
      add in interface Set<E>
      Overrides:
      add in class AbstractCollection<E>
      Parameters:
      e - element to be added to this set
      Returns:
      true if this set did not already contain the specified element

    • remove

      public boolean remove(Object o)
      Removes the specified element from this set if it is present. More formally, removes an element e such that (o==null ? e==null : o.equals(e)), if this set contains such an element. Returns true if this set contained the element (or equivalently, if this set changed as a result of the call). (This set will not contain the element once the call returns.)
      Specified by:
      remove in interface Collection<E>
      Specified by:
      remove in interface Set<E>
      Overrides:
      remove in class AbstractCollection<E>
      Parameters:
      o - object to be removed from this set, if present
      Returns:
      true if the set contained the specified element

    • clear

      public void clear()
      Removes all of the elements from this set. The set will be empty after this call returns.
      Specified by:
      clear in interface Collection<E>
      Specified by:
      clear in interface Set<E>
      Overrides:
      clear in class AbstractCollection<E>

    • clone

      public Object clone()
      Returns a shallow copy of this ZomboidHashSet instance: the elements themselves are not cloned.
      Returns:
      a shallow copy of this set