Java

nt_virus wrote:

how to rectify this error any suggestion.

nt_virus wrote:

but that line add column values for 2nd row and so on till

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package javaapplication6;
import java.io.*;
/**
 *
 * @author Sachin
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try{
    System.out.println("Enter number of rows");
    int m = Integer.parseInt(br.readLine());
    System.out.println("Enter number of columns");
    int n = Integer.parseInt(br.readLine());
    int[][] first = new int[m][n];
    int[][] second = new int[m][n];
    int[][] sum = new int[m][n];
    System.out.println("Enter Value of first matrix");
    {
        for (int i=0;i<first.length;i++)
        {
            System.out.println("Row no. " + (i+1));
            for (int j=0; j<first[i].length;j++)
            {
               System.out.println("Enter value for column no. " + (j+1));
               first[i][j] = Integer.parseInt(br.readLine());

            }
        }
    }
    System.out.println("Enter value of second matrix");
    {
        for (int i=0;i<second.length;i++)
        {
            System.out.println("Row no. " + (i+1));
            for (int j=0;j<second[i].length;j++)
            {
                System.out.println("Enter value for column no. " + (j+1));
                second[i][j] = Integer.parseInt(br.readLine());
            }
        }
        }
    System.out.println("Sum of two matrices are:");
    {
        for (int i=0;i<first.length;i++)
        {
            for (int j = 0; j<second.length;j++)
            {
                sum[m][n] = first[i][j] + second[i][j];
            }
        }
        System.out.println(sum[m][n]);
    }
    }
    catch (IOException e)
    {
       System.out.println(e);
    }
    }
}

nt_virus wrote:

sum[m][n] = first[i][j] + second[i][j];

for (int i=0;i<first.length;i++)
        {
            for (int j = 0; j<second.length;j++)
            {
                sum[i][j] = first[i][j] + second[i][j];
                System.out.println(sum[i][j]);
            }

nt_virus wrote:

But result are showing in vertical manner.. not like matrix way..

for (int i=0;i < first.length;i++)
{
    for (int j = 0; j < first[i].length;j++)
    {
        sum[i][j] = first[i][j] + second[i][j];
        System.out.print(sum[i][j] + "  ");
    }
    System.out.println("");
}