Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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(Java in Eclipse)
Write code that finds the sum of two matrices. Use the following method header
public static int[][] addMatrix(int[][] a, int[][] b)
The rules for adding two matrices are:
1. both matrices should have the exact same dimensions (i.e. height and width) – you need to check for this rule in your program.
2. both matrices should have elements that have compatible types – you don’t have to add extra code to check this rule in your method as it will only accept int arrays
included is a test class and a sample run
![Use the following class to test the methods you develop
public class Test {
public static void main (String[] args) {
{ 14, 11, 13, 12 },
{ 18, 15, 13, 13 },
{ 19, 16, 15, 17 } };
int [] [] ml
%3D
{ 54, 53, 51, 52 },
{ 51, 59, 52, 56 },
{ 53, 54, 52, 58 } };
int [] [] m2
System.out.println ("First array:");
displayArray (ml);
System.out.println ("Second array:");
displayArray (m2);
/* write simple code to test your method and use
displayArray to display the result if applicable
//write your methods code here.
public static void displayArray (int [) m) {
for (int r = 0; r < m.length; r++) {
for (int c = 0; c < m[r].length; c++)
System.out.print (m[r] [c] + " ");
System.out.println ();
For all questions, assume that we use only rectangular arrays (i.e., all rows have the same length).](https://content.bartleby.com/qna-images/question/cd4867d4-8ed0-437f-b40f-72981102d206/99382f9a-5c0f-4672-a56e-d4cfbe0b07bc/xmwxl45_processed.jpeg)
Transcribed Image Text:Use the following class to test the methods you develop
public class Test {
public static void main (String[] args) {
{ 14, 11, 13, 12 },
{ 18, 15, 13, 13 },
{ 19, 16, 15, 17 } };
int [] [] ml
%3D
{ 54, 53, 51, 52 },
{ 51, 59, 52, 56 },
{ 53, 54, 52, 58 } };
int [] [] m2
System.out.println ("First array:");
displayArray (ml);
System.out.println ("Second array:");
displayArray (m2);
/* write simple code to test your method and use
displayArray to display the result if applicable
//write your methods code here.
public static void displayArray (int [) m) {
for (int r = 0; r < m.length; r++) {
for (int c = 0; c < m[r].length; c++)
System.out.print (m[r] [c] + " ");
System.out.println ();
For all questions, assume that we use only rectangular arrays (i.e., all rows have the same length).
Transcribed Image Text:As seen in the image below, the resulting matrix elements should be the sum of the respective pair
of elements from the two matrices (that are being added):
b1 b12 b13
aj1 + bi a12 + b12 a13 + b13
az1 + b21 a2 + b2 az3 + b3
a12
a13
b21 b2
b3
%3D
a23
a31
a32
a33/
b31
b32
b33)
a31 + b31
a32 + b32 a33 + b33
Test your program using the Test class
Sample run
First array:
14 11 13 12
18 15 13 13
19 16 15 17
Second array:
54 53 51 52
51 59 52 56
53 54 52 58
The addition of the above two arrays is
68 64 64 64
69 74 65 69
72 70 67 75
+
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