public class IntegerSet
extends java.lang.Object
This class is intentionally missing a size method.
Constructor and Description |
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IntegerSet(int maximumCount)
Initialize a lookup table with the given maximum number of elements.
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Modifier and Type | Method and Description |
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void |
add(int element)
Add the given element to the set, or do nothing if it already exists.
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void |
clear()
Remove every element from the set.
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boolean |
contains(int element)
Determine whether or not the given element exists in the set.
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void |
remove(int element)
Remove the given element from the set, or do nothing if it's already removed.
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java.util.Set<java.lang.Integer> |
toSet()
Convert the current IntegerSet to an equivalent HashSet.
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public IntegerSet(int maximumCount)
This creates a set for elements in the range [0, count).
Formally, the current set must be a subset of [0, 1, 2, ..., count - 1].
maximumCount
- - maximum element value and count.public boolean contains(int element)
element
- - the element to check. Must be in the range [0, count).public void add(int element)
element
- - element to add.OutOfBoundsException
- If the given element is not in the range [0, count).public void remove(int element)
element
- - element to remove.public void clear()
public java.util.Set<java.lang.Integer> toSet()