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completed abstract multiset class #8

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completed abstract multiset class #8

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15 changes: 15 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 abstract class MultiSet<T> {
// 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 abstract boolean add(T item);
public abstract void remove(T item);
public abstract boolean contains(T item);
public abstract boolean isEmpty (T item);
public abstract Integer count(T item);
public abstract Integer size(T item);

}