Find the Largest Number in an Array Using For Loop Java Program for Beginners
#vlog #mohan #denmarkvlog #dailyvlog #daily #denmark #family #viral #desivlogger #dsa#aaray 🎥 Improved YouTube Video Script (Array – DSA)
Hello guys, and welcome back to my channel.
In my previous video, I explained DSA (Data Structures and Algorithms). After watching that video, you will be able to clearly understand and identify what is a data structure and what is an algorithm.
In today’s video, I am going to explain Array:
What is an array?
Why do we use arrays?
What are the disadvantages of arrays?
Before continuing, I want to make one thing very clear.
This video is not for non-technical backgrounds.
If you are a student and you want to build a career in the computer field, IT field, software engineering, or ethical hacking, then this video is very important for you. So make sure you watch this video till the end — it will help you a lot in the future.
🔹 What is an Array?
An array is a linear data structure that stores multiple values of the same data type in contiguous (continuous) memory locations.
This is the simple and standard definition of an array.
🔹 Why Do We Use Arrays?
Suppose you are working on:
Web applications
B2B applications
Software systems
And you want to access any element immediately — instantly.
In that case, arrays are very useful because:
You can access elements directly using an index
Access time is O(1) (constant time)
Arrays are simple
Arrays are memory efficient
Arrays are the base of many data structures
That’s why arrays are widely used in programming.
🔹 Disadvantages of Array
Every data structure has advantages and disadvantages, and arrays are no exception.
The main disadvantage is:
If you want to insert or delete elements, you must first shift the elements in the array.
Because of this:
Insertion and deletion become time-consuming
Time complexity becomes O(n) (linear time)
This makes arrays costly for frequent insert and delete operations
This is one of the worst-case scenarios of arrays.
🔹 Types of Arrays
There are multiple types of arrays:
One-dimensional array
Two-dimensional array
Three-dimensional array
In this course, we will study only:
1D arrays
2D arrays
3D arrays
Multi-dimensional arrays are mainly used in scientific computing, so they are rarely needed for beginners.
🔹 Time Complexity (Quick Overview)
Accessing an element → O(1) (constant)
Insertion / Deletion → O(n) (linear)
You will understand these concepts more clearly in upcoming videos.
In the next video, I will explain arrays with coding examples, step by step.
So that’s it for today.
If you want to build a career in computer science, IT, software engineering, or hacking,
subscribe to my YouTube channel and follow me on TikTok.
Bye-bye guys ❤️
See you soon in the next video with another iconic topic.
🔥 Iconic YouTube Title
Array in Data Structures Explained | What is Array | Advantages & Disadvantages | DSA for Beginners
📝 YouTube Description
In this video, we explain Array in Data Structures in a simple and beginner-friendly way.
You will learn:
What is an array?
Why arrays are used?
Advantages and disadvantages of arrays
Types of arrays
Time complexity (O(1) and O(n))
This video is perfect for students who want to build a career in IT, software engineering, computer science, or ethical hacking.
📌 Watch till the end to understand the foundation of DSA.
🔔 Subscribe for more DSA and programming videos.
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