How to multiply two matrices of different dimensions in Java

Problem Description:

How to multiply two matrices of different dimensions?

Solution:

Following example shows multiplication of two rectangular matrices with the help of two user defined methods multiply( int [] [] ,int [] []) and mprint(int [] []).

public class Matrix{
   public static int[][] multiply(int[][] m1, int[][] m2){
      int m1rows = m1.length;
      int m1cols = m1[0].length;
      int m2rows = m2.length;
      int m2cols = m2[0].length;
      if (m1cols != m2rows){
         throw new IllegalArgumentException("matrices 
         don't match: "+ m1cols + " != " + m2rows);
         int[][] result = new int[m1rows][m2cols];
         for (int i=0; i

Result:

The above code sample will produce the following result.

array[2][3]={
{3, 2, 3}
 {5, 9, 8}
};

array[3][2]={
{4, 7}
{9, 3}
{8, 1}
};

array[2][2]={
{63, 30}
{165, 70}
};