2D Arrays | Why use them, Taking 2D Arrays as Input | Lecture 20 | Java and DSA Foundation Course
Moving a step ahead in understanding arrays, let's tackle 2D arrays, also called multidimensional arrays. We will understand what they are, why one should use them, along with advantages and applications of multi-dimensional arrays.
We will also practice some questions which are very important and often asked in interviews.
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Timestamps:-
00:00 = Overview of the class.
00:59 = Recap
02:50 = Introduction to 2D Array
08:44 = Introduction to 3D Array
13:36 = Representation of 2D Array
20:33 = Methods to initialize 2D Array
23:20 = 2D Array initialization code
29:37 = Taking 2D Array User Input
34:18 = Taking 2D Array User Input Dry Run
39:54 = Why Multidimensional Arrays
42:23 = Problem 01 : Addition of 2 Matrices
44:54 = Problem 01 : Addition of 2 Matrices Code
52:21 = Problem 02 : Multiplication of 2 Matrices
01:04:00 = Problem 02 : Multiplication of 2 Matrices Code
01:17:39 = Problem 02 : Multiplication of 2 Matrices Dry Run
01:27:45 = Summary
01:28:37 = About Next lecture
01:25:48 = Follow up Question
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