Addition of two matrices in Java

class Matrix
{
int m,n;
int first[][] = new int [10][10];
int second[][] = new int [10][10];
int sum[][] = new int[10][10];
void getValue()
{
System.out.println("\nEnter the number of rows and columns of each matrix:");
m = Integer.parseInt(System.console().readLine());
n = Integer.parseInt(System.console().readLine());
}
void getFirst()
{
System.out.println("\nEnter elements for first matrix:");
for(int i=0;i<m;i++)
for(int j=0;j<n;j++)
first[i][j] = Integer.parseInt(System.console().readLine());
}
void getSecond()
{
System.out.println("\nEnter elements for second matrix:");

for(int i=0;i<m;i++)
for(int j=0;j<n;j++)
second[i][j] = Integer.parseInt(System.console().readLine());
}

void matrixSum()
{
for(int i=0;i<m;i++)
for(int j=0;j<n;j++)
sum[i][j] = first[i][j] + second[i][j];
System.out.println(“Addition of two matrices is:”);
System.out.println();
for(int i=0;i<m;i++)
{
for(int j=0;j<n;j++)
{
System.out.print(sum[i][j]);
System.out.print("\t");
}
System.out.println();
}
}
}
class Matrixmain
{
public static void main(String A[])
{

Matrix m = new Matrix();
m.getValue();
m.getFirst();
m.getSecond();
m.matrixSum();
}
}