Multiplication Of Two Matrix

/** * */ package com.developerstechpoint.matrix; import java.util.Scanner; /** * @author jeetendra * */ public class MatrixMultiplication { /** * @param args */ public static void main(String[] args) { int sum1=0; Scanner sc =new Scanner(System.in); System.out.println("Enter the Rows of first matrix==>"); int rowfirst=sc.nextInt(); System.out.println("Enter the column of first matrix==>"); int columnfirst=sc.nextInt(); int first[][]=new int[rowfirst][columnfirst]; System.out.println("Enter the Elements of first matrix"); for(int i=0; i<rowfirst; i++){ for(int j=0; j<columnfirst; j++){ first[i][j]=sc.nextInt(); } } System.out.println("Enter the Rows of second matrix==>"); int rowsecond=sc.nextInt(); System.out.println("Enter the column of second matrix==>"); int columnsecond=sc.nextInt(); if(columnfirst!=rowsecond){ System.out.println("Multiplication can not be occured because of columnfirst and rowsecond is not equal"); } else{ int second[][]=new int[rowsecond][columnsecond]; System.out.println("Enter the Elements of second matrix"); for(int i=0; i<rowsecond; i++){ for(int j=0; j<columnsecond; j++){ second[i][j]=sc.nextInt(); } } int multiplicationresult[][]=new int[rowfirst][columnsecond]; System.out.println("Multiplication is :"); for(int i=0; i<rowfirst; i++){ for(int j=0; j<columnsecond; j++){ for(int k=0; k<rowsecond; k++){ sum1=sum1+first[i][k]*second[k][j]; } multiplicationresult[i][j]=sum1; sum1=0; } } for(int i=0; i<rowfirst; i++){ for(int j=0; j<columnsecond; j++){ System.out.print(multiplicationresult[i][j]+"\t"); } System.out.println(); } } } } /* * Enter the Rows of first matrix==> 2 Enter the column of first matrix==> 3 Enter the Elements of first matrix 1 2 3 4 5 6 Enter the Rows of second matrix==> 3 Enter the column of second matrix==> 2 Enter the Elements of second matrix 1 2 3 4 5 6 Multiplication is : 22 28 49 64 */ */