Learn ArrayList in Java | Tutorial with examples for Beginners | Collections in Java
ArrayList Tutorial for Beginners with examples - Collections Tutorial in Java. Complete ArrayList explanation in Java Data Structures.
Today I am going to show the importance of an Array List in Java. Now you might say what do I need ArrayList for i can just use arrays it is simpler. And I get you I used to say that, but I'll show you that ArrayLists are easy and really really useful. So, lets get started
Time Stamps
00:00 - Intro
00:30 - Setup
1:10 - Difference Between Array and ArrayList
1:45 - Creating an ArrayList
4:00 - Methods to use on ArrayList
6:05 - Running the program
The difference:
The difference between and array and arraylist is the size of the array cannot be changed, you have to create a new array with bigger size, while the sze of an arrayList can be changed. You can just add elements and don't need to worry about size.
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