๐๐ผ๐ ๐๐ผ ๐๐ฒ๐ฎ๐ฟ๐ป ๐ฃ๐๐๐ต๐ผ๐ป ๐๐ฎ๐๐ (๐๐๐ฒ๐ป ๐๐ณ ๐ฌ๐ผ๐'๐๐ฒ ๐ก๐ฒ๐๐ฒ๐ฟ ๐๐ผ๐ฑ๐ฒ๐ฑ ๐๐ฒ๐ณ๐ผ๐ฟ๐ฒ!)๐๐
Python is everywhereโweb dev, data science, automation, AIโฆ
But where should YOU start if you're a beginner?
Donโt worry. Hereโs a 6-step roadmap to master Python the smart way (no fluff, just action)๐
๐น ๐ฆ๐๐ฒ๐ฝ ๐ญ: Learn the Basics (Donโt Skip This!)
โ Variables, data types (int, float, string, bool)
โ Loops (for, while), conditionals (if/else)
โ Functions and user input
Start with:
Python.org Docs
YouTube: Programming with Mosh / CodeWithHarry
Platforms: W3Schools / SoloLearn / FreeCodeCamp
Spend a week here.
Practice > Theory.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฎ: Automate Boring Stuff (Itโs Fun + Useful!)
โ Rename files in bulk
โ Auto-fill forms
โ Web scraping with BeautifulSoup or Selenium
Read: โAutomate the Boring Stuff with Pythonโ
Itโs beginner-friendly and practical!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฏ: Build Mini Projects (Your Confidence Booster)
โ Calculator app
โ Dice roll simulator
โ Password generator
โ Number guessing game
These small projects teach logic, problem-solving, and syntax in action.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฐ: Dive Into Libraries (Pythonโs Superpower)
โ Pandas and NumPy โ for data
โ Matplotlib โ for visualizations
โ Requests โ for APIs
โ Tkinter โ for GUI apps
โ Flask โ for web apps
Libraries are what make Python powerful. Learn one at a time with a mini project.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฑ: Use Git + GitHub (Be a Real Dev)
โ Track your code with Git
โ Upload projects to GitHub
โ Write clear README files
โ Contribute to open source repos
Your GitHub profile = Your online CV. Keep it active!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฒ: Build a Capstone Project (Level-Up!)
โ A weather dashboard (API + Flask)
โ A personal expense tracker
โ A web scraper that sends email alerts
โ A basic portfolio website in Python + Flask
Pick something that solves a real problemโbonus if it helps you in daily life!
๐ฏ ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐๐๐ต๐ผ๐ป = ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐ผ๐๐ฒ๐ฟ๐ณ๐๐น ๐ฃ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ ๐ฆ๐ผ๐น๐๐ถ๐ป๐ด
You donโt need to memorize code. Understand the logic.
Google is your best friend. Practice is your real teacher.
Python Resources: https://whatsapp.com/channel/0029Vau5fZECsU9HJFLacm2a
ENJOY LEARNING ๐๐
Python is everywhereโweb dev, data science, automation, AIโฆ
But where should YOU start if you're a beginner?
Donโt worry. Hereโs a 6-step roadmap to master Python the smart way (no fluff, just action)๐
๐น ๐ฆ๐๐ฒ๐ฝ ๐ญ: Learn the Basics (Donโt Skip This!)
โ Variables, data types (int, float, string, bool)
โ Loops (for, while), conditionals (if/else)
โ Functions and user input
Start with:
Python.org Docs
YouTube: Programming with Mosh / CodeWithHarry
Platforms: W3Schools / SoloLearn / FreeCodeCamp
Spend a week here.
Practice > Theory.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฎ: Automate Boring Stuff (Itโs Fun + Useful!)
โ Rename files in bulk
โ Auto-fill forms
โ Web scraping with BeautifulSoup or Selenium
Read: โAutomate the Boring Stuff with Pythonโ
Itโs beginner-friendly and practical!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฏ: Build Mini Projects (Your Confidence Booster)
โ Calculator app
โ Dice roll simulator
โ Password generator
โ Number guessing game
These small projects teach logic, problem-solving, and syntax in action.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฐ: Dive Into Libraries (Pythonโs Superpower)
โ Pandas and NumPy โ for data
โ Matplotlib โ for visualizations
โ Requests โ for APIs
โ Tkinter โ for GUI apps
โ Flask โ for web apps
Libraries are what make Python powerful. Learn one at a time with a mini project.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฑ: Use Git + GitHub (Be a Real Dev)
โ Track your code with Git
โ Upload projects to GitHub
โ Write clear README files
โ Contribute to open source repos
Your GitHub profile = Your online CV. Keep it active!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฒ: Build a Capstone Project (Level-Up!)
โ A weather dashboard (API + Flask)
โ A personal expense tracker
โ A web scraper that sends email alerts
โ A basic portfolio website in Python + Flask
Pick something that solves a real problemโbonus if it helps you in daily life!
๐ฏ ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐๐๐ต๐ผ๐ป = ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐ผ๐๐ฒ๐ฟ๐ณ๐๐น ๐ฃ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ ๐ฆ๐ผ๐น๐๐ถ๐ป๐ด
You donโt need to memorize code. Understand the logic.
Google is your best friend. Practice is your real teacher.
Python Resources: https://whatsapp.com/channel/0029Vau5fZECsU9HJFLacm2a
ENJOY LEARNING ๐๐
๐2โค1
Evolution of Programming Languages ๐ฅ๏ธ
๐ฐProgramming Languages๐ฐ
1. JAVA:
More than 85% android apps are created using JAVA. It is also used in big (big means big) websites. It is a portable programming language which makes it easy to use on multi platforms.
2. Java Script:
Its a browser/client side language. It makes the webpage more interactive. Like for example when you enter a comment on Facebook then the whole page doesnโt load., just that comment is added. This kind of functionalities are added into webpages with JavaScript. Javascript brought about a revolution in webapps.
3. Assembly Language:
The most low level programming language because its nothing more than machine code written in human readable form. Its hard to write and you need to have deep understanding of computers to use this because you are really talking with it. Its very fast in terms of execution.
4. C:
Its a low level language too thatโs why its fast. It is used to program operating system, computer games and software which need to be fast. It is hard to write but gives you more control of your computer.
5. C++ :
Its C with more features and those features make it more complex.
6. Perl:
A language which was developed to create small scripts easily . Programming in Perl is easy and efficient but the programs are comparatively slower.
7. Python:
Perl was made better and named Python. Its easy, efficient and flexible. You can automate things with python in a go.
8. Ruby:
Its similar to Python but it became popular when they created a web application development framework named Rails which lets developers to write their web application conveniently.
9. HTML and CSS:
HTML and CSS are languages not programming languages because they are just used display things on a website. They do not do any actual processing. HTML is used to create the basic structure of the website and then CSS is used to make it look good.
10. PHP:
It is used to process things in a website. It is server-sided language as it doesnโt get executed in user browser, but on the server. It can be used to generate dynamic webpage content.
11. SQL:
This is not exactly a programming language. It is used to interact with databases.
โก๏ธ This list could be long because there are too many programming language but I introduced you to the popular ones.
โWhich Language Should Be Your First Programming Language?
โ Suggestions..
1. Getting Started
Learn HTML & CSS. They are easy and will give you a basic idea of how programming works. You will be able to create your own webpages. After HTML you can go with PHP and SQL, so will have a good grasp over web designing and then you can go with python, C or Java. I assure you that PHP, HTML and SQL will be definitely useful in your hacking journey.
2. Understanding Computer And Programming Better
C..The classic C! C is one of the most foundational languages. If you learn C, you will have a deep knowledge of Computers and you will have a greater understanding of programming too, that will make you a better programmer. You will spend most of your time compiling though (just trying to crack a joke).
3. Too Eager To Create Programs?
Python! Python is very easy to learn and you can create a program which does something instead of programming calculators. Well Python doesnโt start you from the basics but with if you know python, you will be able to understand other languages better. One benefit of python is that you donโt need to compile the script to run it, just write one and run it.
React โค๏ธ for more
๐ฐProgramming Languages๐ฐ
1. JAVA:
More than 85% android apps are created using JAVA. It is also used in big (big means big) websites. It is a portable programming language which makes it easy to use on multi platforms.
2. Java Script:
Its a browser/client side language. It makes the webpage more interactive. Like for example when you enter a comment on Facebook then the whole page doesnโt load., just that comment is added. This kind of functionalities are added into webpages with JavaScript. Javascript brought about a revolution in webapps.
3. Assembly Language:
The most low level programming language because its nothing more than machine code written in human readable form. Its hard to write and you need to have deep understanding of computers to use this because you are really talking with it. Its very fast in terms of execution.
4. C:
Its a low level language too thatโs why its fast. It is used to program operating system, computer games and software which need to be fast. It is hard to write but gives you more control of your computer.
5. C++ :
Its C with more features and those features make it more complex.
6. Perl:
A language which was developed to create small scripts easily . Programming in Perl is easy and efficient but the programs are comparatively slower.
7. Python:
Perl was made better and named Python. Its easy, efficient and flexible. You can automate things with python in a go.
8. Ruby:
Its similar to Python but it became popular when they created a web application development framework named Rails which lets developers to write their web application conveniently.
9. HTML and CSS:
HTML and CSS are languages not programming languages because they are just used display things on a website. They do not do any actual processing. HTML is used to create the basic structure of the website and then CSS is used to make it look good.
10. PHP:
It is used to process things in a website. It is server-sided language as it doesnโt get executed in user browser, but on the server. It can be used to generate dynamic webpage content.
11. SQL:
This is not exactly a programming language. It is used to interact with databases.
โก๏ธ This list could be long because there are too many programming language but I introduced you to the popular ones.
โWhich Language Should Be Your First Programming Language?
โ Suggestions..
1. Getting Started
Learn HTML & CSS. They are easy and will give you a basic idea of how programming works. You will be able to create your own webpages. After HTML you can go with PHP and SQL, so will have a good grasp over web designing and then you can go with python, C or Java. I assure you that PHP, HTML and SQL will be definitely useful in your hacking journey.
2. Understanding Computer And Programming Better
C..The classic C! C is one of the most foundational languages. If you learn C, you will have a deep knowledge of Computers and you will have a greater understanding of programming too, that will make you a better programmer. You will spend most of your time compiling though (just trying to crack a joke).
3. Too Eager To Create Programs?
Python! Python is very easy to learn and you can create a program which does something instead of programming calculators. Well Python doesnโt start you from the basics but with if you know python, you will be able to understand other languages better. One benefit of python is that you donโt need to compile the script to run it, just write one and run it.
React โค๏ธ for more
โค7๐2
Roadmap to become a Programmer:
๐ Learn Programming Fundamentals (Logic, Syntax, Flow)
โ๐ Choose a Language (Python / Java / C++)
โ๐ Learn Data Structures & Algorithms
โ๐ Learn Problem Solving (LeetCode / HackerRank)
โ๐ Learn OOPs & Design Patterns
โ๐ Learn Version Control (Git & GitHub)
โ๐ Learn Debugging & Testing
โ๐ Work on Real-World Projects
โ๐ Contribute to Open Source
โโ Apply for Job / Internship
React โค๏ธ for More ๐ก
๐ Learn Programming Fundamentals (Logic, Syntax, Flow)
โ๐ Choose a Language (Python / Java / C++)
โ๐ Learn Data Structures & Algorithms
โ๐ Learn Problem Solving (LeetCode / HackerRank)
โ๐ Learn OOPs & Design Patterns
โ๐ Learn Version Control (Git & GitHub)
โ๐ Learn Debugging & Testing
โ๐ Work on Real-World Projects
โ๐ Contribute to Open Source
โโ Apply for Job / Internship
React โค๏ธ for More ๐ก
๐6โค4
--- Git Commands ---
๐๏ธ git init | Initialize a new Git repository
๐ git clone <repo> | Clone a repository
๐ git status | Check the status of your repository
โ git add <file> | Add a file to the staging area
๐ git commit -m "message" | Commit changes with a message
๐ git push | Push changes to a remote repository
โฌ๏ธ git pull | Fetch and merge changes from a remote repository
--- Branching ---
๐ฟ git branch | List branches
๐ฑ git branch <name> | Create a new branch
๐ git checkout <branch> | Switch to a branch
๐ง git merge <branch> | Merge a branch into the current branch
๐ git rebase <branch> | Reapply commits on top of another base branch
--- Undo & Fix Mistakes ---
๐ git reset --soft HEAD~1 | Undo last commit but keep changes
๐ซ git reset --hard HEAD-1 | Undo last commit and discard changes
โช git revert <commit> | Create a new commit that undoes changes from a specific commit
--- Logs & History ---
๐ git log | Show commit history
๐ git log --oneline --graph --all | Pretty graph of commit history
--- Stashing ---
๐ git stash | Save changes without committing
๐ญ git stash pop | Apply stashed changes and remove them from stash
--- Remote & Collaboration ---
๐ git remote -v | View remote repositories
๐ก git fetch | Fetch changes without merging
๐ต๏ธ git diff | Compare changes
๐๏ธ git init | Initialize a new Git repository
๐ git clone <repo> | Clone a repository
๐ git status | Check the status of your repository
โ git add <file> | Add a file to the staging area
๐ git commit -m "message" | Commit changes with a message
๐ git push | Push changes to a remote repository
โฌ๏ธ git pull | Fetch and merge changes from a remote repository
--- Branching ---
๐ฟ git branch | List branches
๐ฑ git branch <name> | Create a new branch
๐ git checkout <branch> | Switch to a branch
๐ง git merge <branch> | Merge a branch into the current branch
๐ git rebase <branch> | Reapply commits on top of another base branch
--- Undo & Fix Mistakes ---
๐ git reset --soft HEAD~1 | Undo last commit but keep changes
๐ซ git reset --hard HEAD-1 | Undo last commit and discard changes
โช git revert <commit> | Create a new commit that undoes changes from a specific commit
--- Logs & History ---
๐ git log | Show commit history
๐ git log --oneline --graph --all | Pretty graph of commit history
--- Stashing ---
๐ git stash | Save changes without committing
๐ญ git stash pop | Apply stashed changes and remove them from stash
--- Remote & Collaboration ---
๐ git remote -v | View remote repositories
๐ก git fetch | Fetch changes without merging
๐ต๏ธ git diff | Compare changes
โค2๐2
Don't overwhelm to learn JavaScript, JavaScript is only this much
1.Variables
โข var
โข let
โข const
2. Data Types
โข number
โข string
โข boolean
โข null
โข undefined
โข symbol
3.Declaring variables
โข var
โข let
โข const
4.Expressions
Primary expressions
โข this
โข Literals
โข []
โข {}
โข function
โข class
โข function*
โข async function
โข async function*
โข /ab+c/i
โข string
โข ( )
Left-hand-side expressions
โข Property accessors
โข ?.
โข new
โข new .target
โข import.iss.oneta
โข super
โข import()
5.operators
โข Arithmetic Operators: +, -, *, /, %
โข Comparison Operators: ==, ===, !=, !==, <, >, <=, >=
โข Logical Operators: &&, ||, !
6.Control Structures
โข if
โข else if
โข else
โข switch
โข case
โข default
7.Iterations/Loop
โข do...while
โข for
โข for...in
โข for...of
โข for await...of
โข while
8.Functions
โข Arrow Functions
โข Default parameters
โข Rest parameters
โข arguments
โข Method definitions
โข getter
โข setter
9.Objects and Arrays
โข Object Literal: { key: value }
โข Array Literal: [element1, element2, ...]
โข Object Methods and Properties
โข Array Methods: push(), pop(), shift(), unshift(),
splice(), slice(), forEach(), map(), filter()
10.Classes and Prototypes
โข Class Declaration
โข Constructor Functions
โข Prototypal Inheritance
โข extends keyword
โข super keyword
โข Private class features
โข Public class fields
โข static
โข Static initialization blocks
11.Error Handling
โข try,
โข catch,
โข finally (exception handling)
ADVANCED CONCEPTS
12.Closures
โข Lexical Scope
โข Function Scope
โข Closure Use Cases
13.Asynchronous JavaScript
โข Callback Functions
โข Promises
โข async/await Syntax
โข Fetch API
โข XMLHttpRequest
14.Modules
โข import and export Statements (ES6 Modules)
โข CommonJS Modules (require, module.exports)
15.Event Handling
โข Event Listeners
โข Event Object
โข Bubbling and Capturing
16.DOM Manipulation
โข Selecting DOM Elements
โข Modifying Element Properties
โข Creating and Appending Elements
17.Regular Expressions
โข Pattern Matching
โข RegExp Methods: test(), exec(), match(), replace()
18.Browser APIs
โข localStorage and sessionStorage
โข navigator Object
โข Geolocation API
โข Canvas API
19.Web APIs
โข setTimeout(), setInterval()
โข XMLHttpRequest
โข Fetch API
โข WebSockets
20.Functional Programming
โข Higher-Order Functions
โข map(), reduce(), filter()
โข Pure Functions and Immutability
21.Promises and Asynchronous Patterns
โข Promise Chaining
โข Error Handling with Promises
โข Async/Await
22.ES6+ Features
โข Template Literals
โข Destructuring Assignment
โข Rest and Spread Operators
โข Arrow Functions
โข Classes and Inheritance
โข Default Parameters
โข let, const Block Scoping
23.Browser Object Model (BOM)
โข window Object
โข history Object
โข location Object
โข navigator Object
24.Node.js Specific Concepts
โข require()
โข Node.js Modules (module.exports)
โข File System Module (fs)
โข npm (Node Package Manager)
25.Testing Frameworks
โข Jasmine
โข Mocha
โข Jest
1.Variables
โข var
โข let
โข const
2. Data Types
โข number
โข string
โข boolean
โข null
โข undefined
โข symbol
3.Declaring variables
โข var
โข let
โข const
4.Expressions
Primary expressions
โข this
โข Literals
โข []
โข {}
โข function
โข class
โข function*
โข async function
โข async function*
โข /ab+c/i
โข string
โข ( )
Left-hand-side expressions
โข Property accessors
โข ?.
โข new
โข new .target
โข import.iss.oneta
โข super
โข import()
5.operators
โข Arithmetic Operators: +, -, *, /, %
โข Comparison Operators: ==, ===, !=, !==, <, >, <=, >=
โข Logical Operators: &&, ||, !
6.Control Structures
โข if
โข else if
โข else
โข switch
โข case
โข default
7.Iterations/Loop
โข do...while
โข for
โข for...in
โข for...of
โข for await...of
โข while
8.Functions
โข Arrow Functions
โข Default parameters
โข Rest parameters
โข arguments
โข Method definitions
โข getter
โข setter
9.Objects and Arrays
โข Object Literal: { key: value }
โข Array Literal: [element1, element2, ...]
โข Object Methods and Properties
โข Array Methods: push(), pop(), shift(), unshift(),
splice(), slice(), forEach(), map(), filter()
10.Classes and Prototypes
โข Class Declaration
โข Constructor Functions
โข Prototypal Inheritance
โข extends keyword
โข super keyword
โข Private class features
โข Public class fields
โข static
โข Static initialization blocks
11.Error Handling
โข try,
โข catch,
โข finally (exception handling)
ADVANCED CONCEPTS
12.Closures
โข Lexical Scope
โข Function Scope
โข Closure Use Cases
13.Asynchronous JavaScript
โข Callback Functions
โข Promises
โข async/await Syntax
โข Fetch API
โข XMLHttpRequest
14.Modules
โข import and export Statements (ES6 Modules)
โข CommonJS Modules (require, module.exports)
15.Event Handling
โข Event Listeners
โข Event Object
โข Bubbling and Capturing
16.DOM Manipulation
โข Selecting DOM Elements
โข Modifying Element Properties
โข Creating and Appending Elements
17.Regular Expressions
โข Pattern Matching
โข RegExp Methods: test(), exec(), match(), replace()
18.Browser APIs
โข localStorage and sessionStorage
โข navigator Object
โข Geolocation API
โข Canvas API
19.Web APIs
โข setTimeout(), setInterval()
โข XMLHttpRequest
โข Fetch API
โข WebSockets
20.Functional Programming
โข Higher-Order Functions
โข map(), reduce(), filter()
โข Pure Functions and Immutability
21.Promises and Asynchronous Patterns
โข Promise Chaining
โข Error Handling with Promises
โข Async/Await
22.ES6+ Features
โข Template Literals
โข Destructuring Assignment
โข Rest and Spread Operators
โข Arrow Functions
โข Classes and Inheritance
โข Default Parameters
โข let, const Block Scoping
23.Browser Object Model (BOM)
โข window Object
โข history Object
โข location Object
โข navigator Object
24.Node.js Specific Concepts
โข require()
โข Node.js Modules (module.exports)
โข File System Module (fs)
โข npm (Node Package Manager)
25.Testing Frameworks
โข Jasmine
โข Mocha
โข Jest
๐8โค2๐2
List of topics you need to cover if you're preparing for Java Interviews based on current Job market:
1. Core Java Fundamentals (Refer to already posted topics)
2. Advanced Java
- Design Patterns
- Multithreading
- Java Memory Model
- Performance Optimization
- Reflection & Dynamic Proxies
3. Spring Framework
- Spring core concepts
- Spring boot
- Spring Data JPA
- Spring Security
- Spring cloud
- Spring webflux
4. Hibernate
5. Testing (JUnit, Mockito, Integration, Functional, Performance Testing)
6. Build Tools (Maven / Gradle)
7. Logging
8. RDBMS, NoSQL DBs
9. WebSecurity Concepts
10. REST API concepts
11. CI/CD (Jenkins, GitHub Actions)
12. Containerization (Docker, Kubernetes)
13. Version Control (GitHub)
14. Monitoring (Grafana, ELK Stack etc)
15. Cloud (AWS, Azure, GCP (Very rare) )
16. Spring boot microservices
16. Messaging systems
17. Caching Strategies
18. System Design
19. Data Structures
20. Algorithms
21. Agile Methodologies
22. Behavioral questions
1. Core Java Fundamentals (Refer to already posted topics)
2. Advanced Java
- Design Patterns
- Multithreading
- Java Memory Model
- Performance Optimization
- Reflection & Dynamic Proxies
3. Spring Framework
- Spring core concepts
- Spring boot
- Spring Data JPA
- Spring Security
- Spring cloud
- Spring webflux
4. Hibernate
5. Testing (JUnit, Mockito, Integration, Functional, Performance Testing)
6. Build Tools (Maven / Gradle)
7. Logging
8. RDBMS, NoSQL DBs
9. WebSecurity Concepts
10. REST API concepts
11. CI/CD (Jenkins, GitHub Actions)
12. Containerization (Docker, Kubernetes)
13. Version Control (GitHub)
14. Monitoring (Grafana, ELK Stack etc)
15. Cloud (AWS, Azure, GCP (Very rare) )
16. Spring boot microservices
16. Messaging systems
17. Caching Strategies
18. System Design
19. Data Structures
20. Algorithms
21. Agile Methodologies
22. Behavioral questions
๐5โค2
๐ JavaScript vs. Python
โค2
Frequently asked Java Programs
โค4๐2