QUESTION
JAVA Programming
QUESTION 2: Programming Task
----------------
Write a class that implements the following interface, assuming that all methods
are used with approximately the same frequency.
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interface ItemStore {
Interface Item {
String getID();
String getTag();
}
/**
* Adds an {@link Item} to the store, replacing any existing item with the
* same {@link Item#id} value.
*/
public void put(Item item);
/**
* Retrieves the {@link Item} with the given {@link Item#id} value, or
* null if no such {@link Item} exists in the store.
*/
public Item get(String id);
/**
* Delete all {@link Item}s with the specified tag.
*/
public void dropAllByTag(String tag);
/**
* Returns the number of Items in the store
*/
public int size();
}
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