๐ง Do You Know?
๐ค 5 Interesting Facts About Java โ
1๏ธโฃ Arrays in Java are ๐งฑ objects, even if they store primitives.
2๏ธโฃ You can use underscores _ in numbers for readability ๐ 1_000_000.
3๏ธโฃ null can be cast to any ๐งฉ reference type, but using it throws a NullPointerException โ
4๏ธโฃ Enums are like full ๐ classes โ they can have constructors, methods & fields.
5๏ธโฃ final variables can be left uninitialized but must be set later (e.g., in a constructor) โ
๐ค 5 Interesting Facts About Java โ
1๏ธโฃ Arrays in Java are ๐งฑ objects, even if they store primitives.
2๏ธโฃ You can use underscores _ in numbers for readability ๐ 1_000_000.
3๏ธโฃ null can be cast to any ๐งฉ reference type, but using it throws a NullPointerException โ
4๏ธโฃ Enums are like full ๐ classes โ they can have constructors, methods & fields.
5๏ธโฃ final variables can be left uninitialized but must be set later (e.g., in a constructor) โ
๐ฅ๏ธ Types of Applications we can create in Java:
1. ๐ Console Applications โ Text-based apps using terminal/command line
2. ๐ผ๏ธ Desktop Applications โ GUI apps using JavaFX/Swing (e.g., Notepad clone)
3. ๐ Web Applications โ Server-side apps using JSP, Servlets, Spring Boot
4. ๐ฑ Mobile Applications โ Android apps using Java with Android SDK
5. ๐ข Enterprise Applications โ Large-scale apps using Java EE (e.g., Banking systems)
6. ๐ฎ Game Development โ 2D/3D games using LibGDX or similar libraries
7. โ๏ธ Cloud-Based Applications โ Scalable apps deployed on AWS, Azure, etc.
8. ๐ค IoT Applications โ Smart device control using Java ME
9. ๐ Big Data Applications โ Data processing using Hadoop in Java
10. ๐งช Scientific Applications โ Simulations, heavy calculations in science
1. ๐ Console Applications โ Text-based apps using terminal/command line
2. ๐ผ๏ธ Desktop Applications โ GUI apps using JavaFX/Swing (e.g., Notepad clone)
3. ๐ Web Applications โ Server-side apps using JSP, Servlets, Spring Boot
4. ๐ฑ Mobile Applications โ Android apps using Java with Android SDK
5. ๐ข Enterprise Applications โ Large-scale apps using Java EE (e.g., Banking systems)
6. ๐ฎ Game Development โ 2D/3D games using LibGDX or similar libraries
7. โ๏ธ Cloud-Based Applications โ Scalable apps deployed on AWS, Azure, etc.
8. ๐ค IoT Applications โ Smart device control using Java ME
9. ๐ Big Data Applications โ Data processing using Hadoop in Java
10. ๐งช Scientific Applications โ Simulations, heavy calculations in science
๐ DSA using Java Free Tutorials ๐
Hey everyone! ๐ Iโve just started creating easy-to-understand DSA notes ๐ on my website, packed with colorful examples, icons & clear explanations.....check the notes and provide me your feedback !!
https://smartprogramming.in/tutorials/dsa-using-java/introduction-to-data-structures-and-algorithms
Hey everyone! ๐ Iโve just started creating easy-to-understand DSA notes ๐ on my website, packed with colorful examples, icons & clear explanations.....check the notes and provide me your feedback !!
https://smartprogramming.in/tutorials/dsa-using-java/introduction-to-data-structures-and-algorithms
smartprogramming.in
Data Structures and Algorithms in Java | Learn DSA with Examples
Learn Data Structures and Algorithms in Java with practical examples. Enhance your coding skills with in-depth explanations of arrays, linked lists, trees, sorting, searching, and more.
โจ Difference between Abstraction and Encapsulation in Java โจ
1๏ธโฃ Abstraction
Focus: Hides implementation details, shows only functionality.
How: Achieved using abstract classes & interfaces.
Example: You drive a car without knowing how the engine works.
2๏ธโฃ Encapsulation
Focus: Hides data (fields/variables) by wrapping with methods.
How: Achieved using private variables & getter/setter methods.
Example: ATM machine hides your balance, lets you access via PIN.
๐ In short:
Abstraction โ Hides โwhatโ happens inside.
Encapsulation โ Hides โhowโ data is accessed & modified.
1๏ธโฃ Abstraction
Focus: Hides implementation details, shows only functionality.
How: Achieved using abstract classes & interfaces.
Example: You drive a car without knowing how the engine works.
2๏ธโฃ Encapsulation
Focus: Hides data (fields/variables) by wrapping with methods.
How: Achieved using private variables & getter/setter methods.
Example: ATM machine hides your balance, lets you access via PIN.
๐ In short:
Abstraction โ Hides โwhatโ happens inside.
Encapsulation โ Hides โhowโ data is accessed & modified.
โค2
Hello friends, great news!
Iโve created notes up to Java IO. Check them out here: https://smartprogramming.in/tutorials/
Your support motivates me!
It takes a lot of effort to create these notes for you all free of cost, so please provide your valuable feedback here :
https://g.page/smartprogramming/review?nr
Iโve created notes up to Java IO. Check them out here: https://smartprogramming.in/tutorials/
Your support motivates me!
It takes a lot of effort to create these notes for you all free of cost, so please provide your valuable feedback here :
https://g.page/smartprogramming/review?nr
smartprogramming.in
Tutorials by Smart Programming
Verify Students enrollments from Smart Programming. Students purchased premium courses or online and industrial trainings can verify their details by HR or Deepak Sir.
โค6๐1
๐ Difference between Abstraction vs Encapsulation in Java
๐ 1. Purpose
- Abstraction: Hides implementation details and shows only essential features.
- Encapsulation: Hides data by binding it with methods.
๐ 2. Implementation
- Abstraction: Achieved using abstract classes & interfaces.
- Encapsulation: Achieved using classes, getters & setters.
๐ 3. Focus
- Abstraction: Focuses on what to do (not how to do it).
- Encapsulation: Focuses on how to protect data from outside access.
๐ 4. Example
- Abstraction: Car.start() โ you just start, donโt know the internal mechanism.
- Encapsulation: private balance in a BankAccount class accessed via getBalance().
๐ 1. Purpose
- Abstraction: Hides implementation details and shows only essential features.
- Encapsulation: Hides data by binding it with methods.
๐ 2. Implementation
- Abstraction: Achieved using abstract classes & interfaces.
- Encapsulation: Achieved using classes, getters & setters.
๐ 3. Focus
- Abstraction: Focuses on what to do (not how to do it).
- Encapsulation: Focuses on how to protect data from outside access.
๐ 4. Example
- Abstraction: Car.start() โ you just start, donโt know the internal mechanism.
- Encapsulation: private balance in a BankAccount class accessed via getBalance().
โค1
๐ Hey Smart Developers! ๐ฉโ๐ป๐จโ๐ป
Java has released another Long-Term Support (LTS) version: Java 25 on September 16, 2025.
Hereโs whatโs new in Java 25:
- Faster Startup โ Apps start quicker with smart profiling.
- Better Pattern Matching โ Works with primitive types too!
- No psvm Needed โ Run programs directly: System.out.println("Hello Developers!");
-Stronger Security โ New key derivation API.
-Scoped Values & Flexible Constructors โ Cleaner, safer code.
Java 25 = Faster โก.... Simpler ๐ง & More Fun ๐งฉ !
Java has released another Long-Term Support (LTS) version: Java 25 on September 16, 2025.
Hereโs whatโs new in Java 25:
- Faster Startup โ Apps start quicker with smart profiling.
- Better Pattern Matching โ Works with primitive types too!
- No psvm Needed โ Run programs directly: System.out.println("Hello Developers!");
-Stronger Security โ New key derivation API.
-Scoped Values & Flexible Constructors โ Cleaner, safer code.
Java 25 = Faster โก.... Simpler ๐ง & More Fun ๐งฉ !
๐1