2d Arrays Demo

 1. You are given a number n, representing the number of rows.

2. You are given a number m, representing the number of columns.
3. You are given n*m numbers, representing elements of 2d array a.
4. You are required to display the contents of 2d array as suggested by output format below.

Input Format

A number n
A number m
e11
e12..
e21
e22..
.. n * m number of elements

Output Format

e11 e12 e13 ..
e21 e22 e23 ..

Constraints
1 <= n <= 10^2
1 <= m <= 10^2
-10^9 <= e1, e2, .. n * m elements <= 10^9
Sample Input
2
4
11
12
13
14
21
22
23
24
Sample Output
11 12 13 14
21 22 23 24

import java.io.*;
import java.util.*;

public class Main{

public static void main(String[] args) throws Exception {
    // write your code here
    Scanner scn = new Scanner(System.in);
    int n = scn.nextInt();
    int m = scn.nextInt();
    int[][] A = new int[n][m];
    for(int i=0;i<n;i++)  
        for(int j=0;j<m;j++)
            A[i][j] = scn.nextInt();
    
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++)
            System.out.print(A[i][j]+" ");
        System.out.println();
    }
 }

}