WAP of Matrix Multiplication in Java

/*WAP of Matrix Multiplication in Java*/

import java.lang.*;
import java.io.*;
import java.util.*;
class matrix
{
 public static void main (String args[]) throws IOException
 {
  int a[][] = new int[2][2];
  int b[][] = new int[2][2];
  int c[][] = new int[2][2];
  
  Scanner sc = new Scanner(System.in);
  System.out.println("Enter Elements of Matrix 1");
  for(int i=0; i<2; i++)
  {
   for(int j=0; j<2; j++)
   {
   a[i][j] = sc.nextInt();
   }
  }

  System.out.println("Enter Elements of Matrix 2");
  for(int i=0; i<2; i++)
  {
   for(int j=0; j<2; j++)
   {
   b[i][j] = sc.nextInt();
   }
  }
  // calculation
  for(int i=0; i<2; i++)
  {
   for(int j=0; j<2; j++)
   {
    for(int k=0; k<2; k++)
    {
   c[i][j] += a[i][k] * b[k][j];
    }
   }
  }
  System.out.println("Matrix After multiplication");
  for(int i=0; i<2; i++)
  {
   for(int j=0; j<2; j++)
   {
   System.out.println( "\t" + c[i][j] );
   }
  }
 }
}

WAP to find out matrix multipl

/*To find out matrix multipl*/

import java.lang.*;
class Matrix
{
        int l[][],m[][],n[][];
        Matrix()
        {
        l=new int[][] {{1,2,3},{4,5,6},{7,8,9}};
        m=new int[][] {{1,2,3},{4,5,6},{7,8,9}};
        n=new int[3][3];
        }
        void display()
        {
        for(int i=0;i<3;i++)
        {
        for(int j=0;j<3;j++)
        {
        for(int k=0;k<3;k++)
        {

                n[i][j]=n[i][j]+(l[i][k]*m[k][j]);
               
        }
                System.out.print("  "+n[i][j]);
                
        }
                System.out.println(" ");
        }
        }
}
class Matrix_multipl
{
        public static void main(String arg[])
        {
        Matrix a1=new Matrix();
        a1.display();
       
        }
}

To find out 2D matrix addition

/*To find out 2D matrix addition*/
/*Save file as: Matrix_Additon.java*/

import java.lang.*;
class Matrix
{
        int l[][],m[][],n[][];
        Matrix()
        {
        l=new int[][] {{1,2,3},{4,5,6},{7,8,9}};
        m=new int[][] {{1,2,3},{4,5,6},{7,8,9}};
        n=new int[3][3];
        }
        void display()
        {
        for(int i=0;i<3;i++)
        {
        for(int j=0;j<3;j++)
        {
  n[i][j]=l[i][j]+m[i][j];        
   System.out.print("  "+n[i][j]);
                
        }
                System.out.println(" ");
        }
        }
}
class Matrix_Additon
{
        public static void main(String arg[])
        {
        Matrix a1=new Matrix();
        a1.display();
 }
}

WAP to multiplication of 2 matrix

/*WAP to multiplication of 2 matrix*/

#include<stdio.h>
#include<conio.h>
void main()
{
int a[2][2],b[2][2],c[2][2],i,j,k;
clrscr();
printf("enter 1 matrix");
for(i=0;i<2;i++)
{
for(j=0;j<2;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("enter 2 matrix");
for(i=0;i<2;i++)
{
for(j=0;j<2;j++)
{
scanf("%d",&b[i][j]);
}
}
for(i=0;i<2;i++)
{
for(j=0;j<2;j++)
{
c[i][j]=0;
for(k=0;k<2;k++)
c[i][j]=c[i][j]+a[i][k]*b[k][j];
}
}
printf("multiplication of 2 matrix");
for(i=0;i<2;i++)
{
printf("\n");
for(j=0;j<2;j++)
{
printf("%d\t",c[i][j]);
}
}
getch();
}