The actual List interface in the java.util package has several methods beyond the ones imp...

The actual List interface in the java.util package has several methods beyond the ones implemented in this chapter. Write a version of ArrayList that adds some or all of these methods. The methods to add are as follows (some headers are slightly modified; see the Java API Specification for descriptions of each method):

• public void addAll(int index, ArrayList list)

• public boolean containsAll(ArrayList list)

• public boolean equals(Object o)

• public int lastIndexOf(Object o)

• public boolean remove(Object o)

• public void removeAll(ArrayList list)

• public void retainAll(ArrayList list)

• public Object[ ] toArray( )