public class ProdMatrix

{

public static void main(String[] args) {

int row1, col1, row2, col2;

//Initialize matrix a

int a[][] = {

{1, 3, 2},

{3, 1, 1},

{1, 2, 2}

};

//Initialize matrix b

int b[][] = {

{2, 1, 1},

{1, 0, 1},

{1, 3, 1}

};

//Calculates number of rows and columns present in first matrix

row1 = a.length;

col1 = a[0].length;

//Calculates the number of rows and columns present in the second matrix

row2 = b.length;

col2 = b[0].length;

//For two matrices to be multiplied,

//number of columns in first matrix must be equal to number of rows in second matrix

if(col1 != row2){

System.out.println("Matrices cannot be multiplied");

}

else{

//Array prod will hold the result

int prod[][] = new int[row1][col2];

//Performs product of matrices a and b. Store the result in matrix prod

for(int i = 0; i < row1; i++){

for(int j = 0; j < col2; j++){

for(int k = 0; k < row2; k++){

prod[i][j] = prod[i][j] + a[i][k] * b[k][j];

}

}

}

System.out.println("Product of two matrices: ");

for(int i = 0; i < row1; i++){

for(int j = 0; j < col2; j++){

System.out.print(prod[i][j] + " ");

}

System.out.println();

}

}

}

}