MatrixMultiplication.java

package OOPJava;
import java.util.Scanner;

public class MatrixMultiplication{
	public static void main (String args[])
	{
		Scanner sc=new Scanner(System.in);
				System.out.println("Enter the order m1:");
				int m1=sc.nextInt();
				System.out.println("Enter the order n1:");
				int n1=sc.nextInt();
				System.out.println("Enter the order m2:");
				int m2=sc.nextInt();
				System.out.println("Enter the order n2:");
				int n2=sc.nextInt();
				if (n1!=m2) 
				{
					System.out.println("Matrix Multiplication is not possible");
				}
				int A[][]=new int [m1][n1];
				int B[][]=new int [m2][n2];
				int C[][]=new int [m1][n2];
				System.out.println("Read matrix A");
				for(int i=0;i<m1;i++)
				{
					for (int j=0;j<n1;j++)
					{
						System.out.println("A["+i+"]["+j+"]=");
						A[i][j]=sc.nextInt();
					}
				}
				System.out.println("Read matrix B");
				for (int i=0;i<m2;i++)
				{
					for (int j=0;j<n2;j++)
					{
						System.out.println("B["+i+"]["+j+"]=");
						B[i][j]=sc.nextInt();
					}
				}
				for (int i=0;i<m1;i++)
				{
					for (int j=0;j<n2;j++)
					{
						C[i][j]=0;
						for (int k=0;k<n1;k++)
						{
							C[i][j]+=A[i][k]+B[k][j];
						}
					}
				}
				System.out.println("Matrix A");
				for (int i=0;i<m1;i++)
				{
					for (int j=0;j<n1;j++)
					{
						System.out.print(A[i][j]+"\t");						
					}
					System.out.println();
				}
				System.out.println("Matrix B");
				for (int i=0;i<m2;i++)
				{
					for (int j=0;j<n2;j++)
					{
						System.out.print(B[i][j]+"\t");
					}
					System.out.println();
				}
				System.out.println("Matrix C");
				for (int i=0;i<m1;i++)
				{
					for(int j=0;j<n2;j++)
					{
						System.out.print(C[i][j]+"\t");
					}
					System.out.println();
				}				
	}
}