/*
 *Com S 207
 *Hw 7
 *Matrix.java
 *
 *Thanks to Jacob Burgduff. 
 */
 
import java.util.Scanner;

public class Matricies {

	public static void main (String[] args) {
	
		double [][] A = new double [3][3];
		double [][] B = new double [3][3];
		double [][] C = new double [3][3];
		double [][] Temp = new double [3][3];
		double [][] Result = new double [3][3];
		
		Scanner scan = new Scanner(System.in);
		
		//Prompt user to input the values for the matricies
		System.out.println("Please enter the values for the A matrix: ");
		for (int i = 0; i < 3; i++)
			{
			for (int j = 0; j < 3; j++)
				{
				A[i][j] = scan.nextDouble();
				}
			}
		
		//Print the array
		System.out.println("The Matrix A you entered is: ");
		for(int i = 0; i < 3; i++)
			{
			System.out.println();
			for (int j = 0; j < 3; j++)
				{
				System.out.print(A[i][j] + " ");
				}
			}
		System.out.println();
		System.out.println("Please enter the values for the B matrix: ");
		for (int i = 0; i < 3; i++)
			{
			for (int j = 0; j < 3; j++)
				{
				B[i][j] = scan.nextDouble();
				}
			}
		
		//Print the array
		System.out.println("The Matrix B you entered is: ");
		for(int i = 0; i < 3; i++)
			{
			System.out.println();
			for (int j = 0; j < 3; j++)
				{
				System.out.print(B[i][j] + " ");
				}
			}
		System.out.println();
		System.out.println("Please enter the values for the C matrix: ");
		for (int i = 0; i < 3; i++)
			{
			for (int j = 0; j < 3; j++)
				{
				C[i][j] = scan.nextDouble();
				}
			}
		
		//Print the array
		System.out.println("The Matrix C you entered is: ");
		for(int i = 0; i < 3; i++)
			{
			System.out.println();
			for (int j = 0; j < 3; j++)
				{
				System.out.print(C[i][j] + " ");
				}
			}
		
		//Add matrix A and B together and store in Temp
		for (int i = 0; i < 3; i++)
			{
			for (int j = 0; j < 3; j++)
				{
				Temp[i][j] = A[i][j] + B[i][j];
				}
			}
		
		//Print the Temp array for verification
		System.out.println();
		System.out.println("The Temp Matrix is: ");
		for(int i = 0; i < 3; i++)
			{
			System.out.println();
			for (int j = 0; j < 3; j++)
				{
				System.out.print(Temp[i][j] + " ");
				}
			}
		
		//Multiply Temp with matrix C to get the Result matrix
		for (int i = 0; i < 3; i++) 
			for (int j = 0; j < 3; j++) 
				for (int k = 0; k < 3; k++) 
					Result[i][k] += Temp[i][j] * C[j][k]; 
					
		//Print the Result matrix
		System.out.println();
		System.out.println("The Result Matrix is: ");
		for(int i = 0; i < 3; i++)
			{
			System.out.println();
			for (int j = 0; j < 3; j++)
				{
				System.out.print(Result[i][j] + " ");
				}
			}		
	}
}