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Create multiset interface #23

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Create multiset interface #23

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14 changes: 14 additions & 0 deletions src/MultiSet.java
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Original file line number Diff line number Diff line change
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public interface MultiSet {
/*An abstract class representing the MultiSet ADT, which supports the
add, remove, is_empty, count, and contains operations.

This class itself does not handle how the underlying data is stored,
so it just inherits Object.__init__.*/

public boolean add(Object item);
public void remove(Object item);
public boolean contains(Object item);
public boolean is_empty();
public int count(Object item);
public int size();
}