Twodarrayops (Please check for code line 24)

#1

(I am not able to get the error )
May I know whether the reading of an each array element is correct?

import java.util.Scanner;

public class Twodarrayops
{
static Scanner scn=new Scanner(System.in);
public static void main(String[] args)
{
int [][] array=takeinput();
display(array);
}

private static int[][] takeinput()
{
    System.out.println("Enter the number of rows ");
    int rows=scn.nextInt();
    System.out.println("Enter the number of columns ");
    int columns=scn.nextInt();
    int[][] arr=new int[rows][columns];
    System.out.println("Enter the array elements ");
    for(int i=0;i<rows;i++)
    {
        for(int j=0;j<columns;j++)
        {
            arr[rows][columns]=scn.nextInt();

        }
        System.out.println();
    }
    return arr;

} 
private static void display(int[][] arr)
{
    for(int i=0;i<arr.length;i++)
    {
        for(int j=0;j<arr[i].length;j++)
        {
            System.out.print(arr[i][j]+" ");
        }
        System.out.println();
    }
}

}

#2

@jdkatti,
https://ide.codingblocks.com/s/315222 corrected code.

Error:
do:

  for(int i=0;i<rows;i++)
    {
        for(int j=0;j<columns;j++)
        {
            arr[i][j]=scn.nextInt();

        }
        System.out.println();
    }

Instead of:

 for(int i=0;i<rows;i++)
    {
        for(int j=0;j<columns;j++)
        {
            arr[rows][columns]=scn.nextInt();

        }
        System.out.println();
    }

because you are using rows and columns, you will get an error

#3

How can I get input to be in
{ 0 0 0
0 0 0
0 0 0} this format

#4

Sorry sir, got the solution for the above problem

1 Like
#5

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