/*
 *  Copyright (C) 2009  E.Albert, P.Arenas, S.Genaim, G.Puebla, and D.Zanardini
 *                      https://costa.ls.fi.upm.es
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package pubs;
/**
 * A class with a multiply method which multiplies two matrices.
 * 
 * @author E.Albert, P.Arenas, S.Genaim, and G.Puebla
 *
 */
public class MatMult {

	public int[][] multiply(int[][] A, int[][] B) {
		int c = A.length;
		//int r = A[0].length;
		int r = B.length;
		int[][] C = new int[r][c];

		for(int i=0; i < r;i++){
			for( int j =0;j< c;j++){
				for (int k=0;k<c;k++){
					C[i][j] = C[i][j] + (A[i][k] *B[k][j]);
				}
			}
		}
		return C;
	}

	public static void main(String[] args) {
		final int rows1 = 10 , rows2 = 10;
		final int columns = 10;
		int[][] testA = new int[rows1][columns];
		int[][] testB = new int[columns][rows2];
		for (int i = 0; i < testA.length; i++) {
			for (int j = 0; j < testA[0].length; j++) {
				testA[i][j] = i;
			}
		}
		for (int i = 0; i < testB.length; i++) {
			for (int j = 0; j < testB[0].length; j++) {
				testB[i][j] = i;
			}
		}
		MatMult testClass = new MatMult();
		int[][] result = testClass.multiply(testA,testB);
		/*System.out.println("Result: ");
		for (int i = 0; i < result.length; i++) {
			for (int j = 0; j < result[0].length; j++) {
				System.out.println(result[i][j]+"    ");
			}
			System.out.println("\n");
			}*/
	}
}