Lab Goal : This lab was designed to teach you how to use a matrix, an array of arrays.

Lab Description : Load in the provided matrix and then sum up all of the cells around the provided cell locations. Include the value of the provided location as well as all of the cells within 1 cell of the provided cell.

1, 2, 3, 4, 5

6, 7, 8, 9, 0

6, 7, 1, 2, 5

6, 7, 8, 9, 0

5, 4, 3, 2, 1

The sum of 0,0 is 16.

The sum of 1,1 is 41.

Sample Data :

2 2

0 0

4 3

4 4

2 4

1 3

Sample Output :

Matrix values

1 2 3 4 5

6 7 8 9 0

6 7 1 2 5

6 7 8 9 0

5 4 3 2 1

The sum of 2,2 is 58.

The sum of 0,0 is 16.

The sum of 4,3 is 23.

The sum of 4,4 is 12.

The sum of 2,4 is 25.

The sum of 1,3 is 37.

//Main.Java

import java.io.File;

import java.io.IOException;

import java.util.Scanner;

import static java.lang.System.*;

public class Main

public static void main( String args[] ) throws IOException

{

Scanner file = new Scanner (new File("matsum.dat"));

int times = f.nextInt();

MatrixSumming2 ms = new MatrixSumming2();

for( int dx = 0; dx < times; dx++ )

{

int r = f.nextInt();

int c = f.nextInt();

System.out.println("The sum of " + r + "," + c + " is " + ms.sum(r+1,c+1) );

}

}

} //Matrixsumming2.java method

import java.util.*;

import java.io.*;

public class MatrixSumming2

{

private int[][] m = {{5,6},{7,8},{3,4}}; //load in the matrix values

public int sum( int r, int c )

{

return 0;

}

public String toString()

{

return "";

}

}