Question

If arrays Mand M + N are as shown below, write a program in Java to find the array N. 

M = ${\displaystyle \left[\begin{array}{ccc}-1& 0& 2\\ -3& -1& 6\\ 4& 3& -1\end{array}\right]}$   M + N = ${\displaystyle \left[\begin{array}{ccc}-6& 9& 4\\ 4& 5& 0\\ 1& -2& -3\end{array}\right]}$ 

Answer 1

import java.util.*;
class AQ19{
public static void main(String args[]){
Scanner ob = new Scanner(System.in);
int M[][] = new int[3][3], N[][] = new int[3][3];
int MN[][] = new int[3][3);
int i, j;

// INPUT LOOP FOR MATRIX M
System.out.println("MATRIX M");
for (i = 0; i < 3; i++)
{System.out.println("Enter the elements in row " + i);
for (j = 0; j < 3; j++)
M[i][j] = ob.nextlnt();
}

// INPUT LOOP FOR MATRIX M+N
System.out.println("MATRIX M+N");
for (i = 0; i < 3; i++)
{System.out.printIn("Enter the elements in row " + i);
for (i = 0; j < 3; j++)
MN[i][j] = ob.nextInt();
}

// FINDING MATRIX N FROM MATRIX MN AND MATRIX M
for (i = 0; i < 3; i++)
{
for (j = 0; j < 3; j++)
N[i][j] = MN[i][j] - M[i][j];
}

// OUTPUT LOOP FOR MATRIX N
for (i = 0; i < 3; i++)
{System.out.println();
for (j = 0; j < 3; j++)
System.out.print(N[i][j] + "\t");
}
}}