Java Reference
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Write a test program that prompts the user to enter a matrix of double val-
ues and displays a new column-sorted matrix. Here is a sample run:
3
*
3
Enter a 3-by-4 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
7.28
(
Strictly identical arrays
) The two-dimensional arrays
m1
and
m2
are
strictly iden-
tical
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 arrays of integers
and displays whether the two are strictly identical. Here are the sample runs.
3
*
3
Enter list1:
Enter list2:
The two arrays are strictly identical
51 22 25 6 1 4 24 54 6
51 22 25 6 1 4 24 54 6
Enter list1:
Enter list2:
The two arrays are not strictly identical
51 25 22 6 1 4 24 54 6
51 22 25 6 1 4 24 54 6
7.29
(
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 identical,
using the following header:
public static boolean
equals(
int
[][] m1,
int
[][] m2)
Write a test program that prompts the user to enter two lists of integers and dis-
plays whether the two are identical. Here are the sample runs.
Enter list1:
Enter list2:
The two arrays are identical
51 25 22 6 1 4 24 54 6
51 22 25 6 1 4 24 54 6
Enter list1:
Enter list2:
The two arrays are not identical
51 5 22 6 1 4 24 54 6
51 22 25 6 1 4 24 54 6
