Question: Provided here is the interface file: BagInterface.java /** An interface that describes the operations of a bag of objects. @author Frank M. Carrano @author Timothy

Provided here is the interface file: BagInterface.java

/** An interface that describes the operations of a bag of objects. @author Frank M. Carrano @author Timothy M. Henry @version 5.0 */ public interface BagInterface { /** Gets the current number of entries in this bag. @return The integer number of entries currently in the bag. */ public int getCurrentSize(); /** Sees whether this bag is empty. @return True if the bag is empty, or false if not. */ public boolean isEmpty(); /** Adds a new entry to this bag. @param newEntry The object to be added as a new entry. @return True if the addition is successful, or false if not. */ public boolean add(T newEntry); /** Removes one unspecified entry from this bag, if possible. @return Either the removed entry, if the removal. was successful, or null. */ public T remove(); /** Removes one occurrence of a given entry from this bag, if possible. @param anEntry The entry to be removed. @return True if the removal was successful, or false if not. */ public boolean remove(T anEntry); /** Removes all entries from this bag. */ public void clear(); /** Counts the number of times a given entry appears in this bag. @param anEntry The entry to be counted. @return The number of times anEntry appears in the bag. */ public int getFrequencyOf(T anEntry); /** Tests whether this bag contains a given entry. @param anEntry The entry to find. @return True if the bag contains anEntry, or false if not. */ public boolean contains(T anEntry); /** Retrieves all entries that are in this bag. @return A newly allocated array of all the entries in the bag. Note: If the bag is empty, the returned array is empty. */ public T[] toArray(); } // end BagInterface

You will write the "LinkedBag" class, and a main program named "Project1.java" testing the methods defined for the LinkedBag object.

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