GENERICS - Introduction to Java Programming: Comprehensive Version - page 759

19.6

( Maximum element in a two-dimensional array ) Write a generic method that
returns the maximum element in a two-dimensional array.

public static <E extends Comparable<E>> E max(E[][] list)

19.7

( Generic binary search ) Implement the following method using binary search.

public static <E extends Comparable<E>>
int binarySearch(E[] list, E key)

19.8

( Shuffle ArrayList ) Write the following method that shuffles an ArrayList :

public static <E> void shuffle(ArrayList<E> list)

19.9

( Sort ArrayList ) Write the following method that sorts an ArrayList :

public static <E extends Comparable<E>>
void sort(ArrayList<E> list)

19.10

( Largest element in ArrayList ) Write the following method that returns the largest
element in an ArrayList :

public static <E extends Comparable<E>> E max(ArrayList<E> list)

19.11

( ComplexMatrix ) Use the Complex class introduced in Programming
Exercise 13.17 to develop the ComplexMatrix class for performing matrix opera-
tions involving complex numbers. The ComplexMatrix class should extend the
GenericMatrix class and implement the add , multiple , and zero methods.
You need to modify GenericMatrix and replace every occurrence of Number by
Object , because Complex is not a subtype of Number . Write a test program that
creates the following two matrices and displays the result of addition and multiplica-
tion of the matrices by invoking the printResult method.