Java Programming
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Everything you need to learn Java Programming

Daily Java tutorials, coding challenges, OOP concepts, DSA in Java & more!
Perfect for beginners, CS students & job seekers.

Downloadable PDFs, cheat sheets, interview prep & projects

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java fullstack development.pdf
1.2 MB
Java Fullstack Development ๐Ÿ”ฅ

React โค๏ธ for more
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Visa interview experience

Leetcode easy problems

Day 18/100
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Java Thread Methods ๐Ÿ‘†
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Java project ideas to help you practice your skills

1. ToDo List Application: Create a command-line or GUI-based application that allows users to create, manage, and organize their tasks.

2. Calculator: Build a simple calculator application that can perform basic arithmetic operations like addition, subtraction, multiplication, and division.

3. Library Management System: Design a system for managing library resources, including books, patrons, and borrowing records.

4. Chat Application: Develop a chat application that enables users to communicate in real-time, either as a desktop app or through a web interface.

5. Weather App: Create an app that fetches weather data from an API and displays current weather conditions for a given location.

6. Student Gradebook: Build a program to store and calculate student grades. You can add features like grade averages and report generation.

7. Expense Tracker: Create an application for tracking expenses and generating reports, helping users manage their finances.

8. Simple Game (e.g., Tic-Tac-Toe): Implement a classic game like Tic-Tac-Toe to learn about game logic and user interaction.

9. Blog or Content Management System (CMS): Build a simple blog or CMS where users can create, edit, and publish articles.

10. E-commerce Shopping Cart: Create a basic online shopping cart system with product listings, a shopping cart, and checkout functionality.

11. File Manager: Develop a file manager application that allows users to organize and manage files and directories on their computer.

12. Inventory System: Design an inventory management system for tracking products, quantities, and orders for a small business.

13. Music Player: Create a basic music player with features like play, pause, skip, and a library of songs.

14. Password Manager: Build a secure application for storing and managing passwords and other sensitive information.

15. Chess or Sudoku Solver: Implement a chess game or a Sudoku puzzle solver to delve into complex algorithms and logic.

16. Note-taking App: Develop a note-taking application with features like creating, editing, and organizing notes.

17. Expense Sharing App: Build an app for groups to track shared expenses and split bills among friends or roommates.

18. Task Scheduler: Create a program that allows users to schedule and manage tasks, reminders, and appointments.

19. Mini Social Media Platform: Create a simplified social media platform with features like user profiles, posting, and commenting.

20. Quiz or Flashcard Application: Design an app for creating and taking quizzes or using flashcards to study various topics.

Choose a project that aligns with your interests and skill level. As you work on these projects, you'll gain valuable experience and improve your Java programming skills.
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Donโ€™t get overwhelmed, Java is only this much ๐Ÿš€

1. *Variables*
- int
- double
- float
- boolean
- char
- String

2. *Data Types*
- Primitive: int, float, char, boolean, long, double, byte, short
- Reference: classes, arrays, interfaces

3. *Declaring Variables*
- Syntax: type variableName = value;

4. *Expressions*
- Arithmetic: +, -, *, /, %
- Logical: &&, ||,!
- Comparison: ==,!=, <, >, <=, >=

5. *Operators*
- Arithmetic
- Assignment (=, +=, -=, etc.)
- Increment/Decrement (++/--)
- Logical
- Bitwise

6. *Control Structures*
- if
- else if
- else
- switch-case
- break
- continue

7. *Loops*
- for
- while
- do-while
- for-each (arrays/collections)

8. *Methods (Functions)*
- Return types, void
- Parameters
- Method overloading
- Static methods

9. *Objects and Classes*
- Class declaration
- Object creation (new)
- Fields & methods
- Constructors

10. *Inheritance & Polymorphism*
- extends
- super
- Method overriding
- Interfaces (implements)
- Abstract classes

11. *Encapsulation*
- private, public, protected
- Getters & setters

12. *Abstraction*
- Abstract classes
- Interfaces

13. *Exception Handling*
- try
- catch
- finally
- throw
- throws

14. *Arrays & Collections*
- Arrays
- ArrayList
- LinkedList
- HashMap
- Set

15. *Generics*
- List<String>
- Map<Key, Value>

16. *Streams (Java 8+)*
- Stream API
- filter, map, collect

17. *Lambda Expressions*
- (params) -> expression

18. *File I/O*
- FileReader
- FileWriter
- BufferedReader
- Scanner

19. *Multithreading*
- Thread class
- Runnable interface
- synchronized
- wait/notify

20. *Static & Final*
- static variables/methods
- final class/method/variable

21. *Packages & Imports*
- package
- import

22. *JVM, JRE & JDK*
- JVM: runs code
- JRE: environment
- JDK: tools + JRE

23. *Annotations*
- @Override
- @Deprecated
- @FunctionalInterface

24. *Access Modifiers*
- public
- private
- protected
- default (package-private)

25. *Testing Frameworks*
- JUnit
- TestReact โค๏ธ for morere** ๐Ÿ˜Š
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Day 19/100
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Day 21/100
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Here is a powerful ๐—œ๐—ก๐—ง๐—˜๐—ฅ๐—ฉ๐—œ๐—˜๐—ช ๐—ง๐—œ๐—ฃ to help you land a job!

Most people who are skilled enough would be able to clear technical rounds with ease.

But when it comes to ๐—ฏ๐—ฒ๐—ต๐—ฎ๐˜ƒ๐—ถ๐—ผ๐—ฟ๐—ฎ๐—น/๐—ฐ๐˜‚๐—น๐˜๐˜‚๐—ฟ๐—ฒ ๐—ณ๐—ถ๐˜ rounds, some folks may falter and lose the potential offer.

Many companies schedule a behavioral round with a top-level manager in the organization to understand the culture fit (except for freshers).

One needs to clear this round to reach the salary negotiation round.

Here are some tips to clear such rounds:

1๏ธโƒฃ Once the HR schedules the interview, try to find the LinkedIn profile of the interviewer using the name in their email ID.

2๏ธโƒฃ Learn more about his/her past experiences and try to strike up a conversation on that during the interview.

3๏ธโƒฃ This shows that you have done good research and also helps strike a personal connection.

4๏ธโƒฃ Also, this is the round not just to evaluate if you're a fit for the company, but also to assess if the company is a right fit for you.

5๏ธโƒฃ Hence, feel free to ask many questions about your role and company to get a clear understanding before taking the offer. This shows that you really care about the role you're getting into.

๐Ÿ’ก ๐—•๐—ผ๐—ป๐˜‚๐˜€ ๐˜๐—ถ๐—ฝ - Be polite yet assertive in such interviews. It impresses a lot of senior folks.
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