“Matrix multiplication in java using function” Code Answer’s

Matrix multiplication in java using function

java by Nutty Newt on Nov 25 2020 Donate

// matrix multiplication java
public class MatrixMultiplicationJavaDemo 
{
   public static int[][] multiplyMatrix(int[][] matrix1, int[][] matrix2, int row, int column, int col)
   {
      int[][] multiply = new int[row][col];
      for(int a = 0; a < row; a++) 
      {
         for(int b = 0; b < col; b++) 
         {
            for(int k = 0; k < column; k++) 
            {
               multiply[a][b] += matrix1[a][k] * matrix2[k][b];
            }
         }
      }
      return multiply;
   }
   public static void printMatrix(int[][] multiply) 
   {
      System.out.println("Multiplication of two matrices: ");
      for(int[] row : multiply) 
      {
         for(int column : row) 
         {
            System.out.print(column + "    ");
         }
         System.out.println();
      }
   }
   public static void main(String[] args) 
   {
      int row = 2, col = 3;
      int column = 2;
      int[][] matrixOne = {{1, 2, 3}, {4, 5, 6}};
      int[][] matrixTwo = {{7, 8}, {9, 1}, {2, 3}};
      int[][] product = multiplyMatrix(matrixOne, matrixTwo, row, col, column);
      printMatrix(product);
   }
}

Source: www.flowerbrackets.com

matrix multiplication in java

java by Hurt Hyena on Sep 14 2020 Donate

    public class MatrixMultiplicationExample{  
    public static void main(String args[]){  
    //creating two matrices    
    int a[][]={{1,1,1},{2,2,2},{3,3,3}};    
    int b[][]={{1,1,1},{2,2,2},{3,3,3}};    
        
    //creating another matrix to store the multiplication of two matrices    
    int c[][]=new int[3][3];  //3 rows and 3 columns  
        
    //multiplying and printing multiplication of 2 matrices    
    for(int i=0;i<3;i++){    
    for(int j=0;j<3;j++){    
    c[i][j]=0;      
    for(int k=0;k<3;k++)      
    {      
    c[i][j]+=a[i][k]*b[k][j];      
    }//end of k loop  
    System.out.print(c[i][j]+" ");  //printing matrix element  
    }//end of j loop  
    System.out.println();//new line    
    }    
    }}

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