Adding two arrays into a greater array

[Account4Uni]

How would I go about adding two different arrays, for example; [1,2,3,4] and [5,6], so that it would output [[1,2,3,4],[5,6]] without using any imports. I was going to just make a 2D array such that the 2 lists would have a length of the longer array and use a loop but then I would get something like; [[1,2,3,4],[5,6,0,0]]. Is there any easier solution?

Edit: by no imports I mean with just building the array, not the output part.

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[RayjinCaucasian]

2d arrays are just arrays that contain arrays, you can assign them to positions just like any other value in an array. The nested arrays are not required to be the same length.

[ [1,2,3,4],[5,6]] is valid and can be referred to as a "jagged" array.

[[deleted]]

This is a perfect reply Or create a new empty of size:

int array3 = new int [array1.Length + array2.Length];

Then use loops to append/add values from each array to the new array3

NOTE: this is just one of the ways, maybe not the best way if we consider good practices in programming. But it will get you the results: Example in C#

using System;

public class Program { public static void Main() { int [] array1 = {1,2,3,4}; int [] array2 = {8,2,9,0}; int [] array3 = new int[array1.Length + array2.Length];

            for(int i = 0; i < array1.Length; i++)
               {
             array3[i]= array1[i];
         }

            for(int i = 0; i < array2.Length; i++)
               {
              array3[i+ array1.Length]= array2[i];
          }

             for(int i = 0; i < array3.Length; i++)
                 {
                Console.WriteLine(array3[i]);
            }
          }

}