tg-me.com/java_codings/61
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42. Add two Matrix.
import java.util.*;
class AddTwoMatrix
{
int m, n;
int first[][] = new int[m][n];
int second[][] = new int[m][n];
AddTwoMatrix(int[][] first, int[][] second, int m, int n)
{
this.first = first;
this.second = second;
this.m = m;
this.n = n;
}
public static void main(String[] args)
{
int m, n, c, d;
Scanner in = new Scanner(System.in);
System.out.println("Enter the number of rows and columns of matrix");
m = in.nextInt();
n = in.nextInt();
int first[][] = new int[m][n];
int second[][] = new int[m][n];
System.out.println("Enter the elements of first matrix");
for (c = 0; c < m; c++)
{
for (d = 0; d < n; d++)
{
first[c][d] = in.nextInt();
}
}
System.out.println("Enter the elements of second matrix");
for (c = 0; c < m; c++)
{
for (d = 0; d < n; d++)
{
second[c][d] = in.nextInt();
}
}
System.out.println("\nElements of First matrix is : ");
for (c = 0; c < m; c++)
{
for (d = 0; d < n; d++)
{
System.out.print(first[c][d] + "\t");
}
System.out.println();
}
System.out.println("\nElements of Second matrix is : ");
for (c = 0; c < m; c++)
{
for (d = 0; d < n; d++)
{
System.out.print(second[c][d] + "\t");
}
System.out.println();
}
AddTwoMatrix a = new AddTwoMatrix(first, second, m, n);
//call by reference
a.addmatrix(a); //Passing Object
}
//Function for Adding two matrix and storing in third matrix
public void addmatrix(AddTwoMatrix a)
{
int c, d;
int sum[][] = new int[a.m][a.n];
for (c = 0; c < a.m; c++)
{
for (d = 0; d < a.n; d++)
{
sum[c][d] = a.first[c][d] + a.second[c][d];
}
}
System.out.println("\nSum of the two matrices is : ");
for (c = 0; c < a.m; c++)
{
for (d = 0; d < a.n; d++)
{
System.out.print(sum[c][d] + "\t");
}
System.out.println();
}
}
}
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