MULTIDIMENSIONAL ARRAYS - Introduction to Java Programming: Comprehensive Version - page 316

Write a test program that prompts the user to enter a 3 3 matrix of double

values and displays a new column-sorted matrix. Here is a sample run:

*

Enter a 3-by-3 matrix row by row:
0.15 0.875 0.375
0.55 0.005 0.225
0.30 0.12 0.4

The column-sorted array is
0.15 0.0050 0.225
0.3 0.12 0.375
0.55 0.875 0.4

8.28

( Strictly identical arrays ) The two-dimensional arrays m1 and m2 are strictly
identical if their corresponding elements are equal. Write a method that returns
true if m1 and m2 are strictly identical, using the following header:

public static boolean equals( int [][] m1, int [][] m2)

Write a test program that prompts the user to enter two 3 3 arrays of

integers and displays whether the two are strictly identical. Here are the
sample runs.

*

Enter list1: 51 22 25 6 1 4 24 54 6
Enter list2: 51 22 25 6 1 4 24 54 6
The two arrays are strictly identical

Enter list1: 51 25 22 6 1 4 24 54 6
Enter list2: 51 22 25 6 1 4 24 54 6
The two arrays are not strictly identical

8.29

( Identical arrays ) The two-dimensional arrays m1 and m2 are identical if they
have the same contents. Write a method that returns true if m1 and m2 are iden-
tical, using the following header:

public static boolean equals( int [][] m1, int [][] m2)

Write a test program that prompts the user to enter two 3 3 arrays of integers

and displays whether the two are identical. Here are the sample runs.

*

Enter list1: 51 25 22 6 1 4 24 54 6
Enter list2: 51 22 25 6 1 4 24 54 6
The two arrays are identical

Enter list1: 51 5 22 6 1 4 24 54 6
Enter list2: 51 22 25 6 1 4 24 54 6
The two arrays are not identical