What are 2d arrays in Java

Question

Java

Answer 1

A nested array (multidimensional array).

Normal array = {1,2,3}

2d: { {1,2,3} , { 4,5,6,7} }
You can see, it is one array which contains two arrays inside.
The two arrays have an index (0 and 1) and the numbers have indizes.
arr[0][0] ... arr[0][2]
arr[1][0] ... arr[1][3]

Answer 2

You can also look here:
https://www.sololearn.com/learn/Java/2149/?ref=app

Answer 3

2dimension array are 2d array