Avadhut

Java ☕ | Spring Boot | Microservices | React ⚛️
Currently posting Java content daily -#JavaFromZero 🚀
Building real projects & open to freelance

[Avadhut @av_dhoot]

🚨 Announcement 🚨

Every expert once wrote their first
public static void main(String[] args) ☕

From tomorrow, I’m starting a new journey — #JavaFromZero 🚀

→ One Java topic every day
→ Explained simply
→ With real-world clarity

[Avadhut @av_dhoot]

@Adarsh2028 In

[Xavier Uncle @xavierunclelite]

Relatives: Kaunse board se ho? ICSE ya CBSE?

Vaibhav Sooryavanshi: BCCI.

[Aegon | Targaryen @45tillthend]

Life when rohit sharma scores

[Avadhut @av_dhoot]

Champions 🇮🇳🏆
#T20WC2026 @BCCI

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 49

Building reusable Java code with Custom Generic Classes 🧩

• <T> acts as a type placeholder
• One class → works with many types
• Compile-time type safety
• Widely used in Collections & frameworks

🔗 Deep dive →https://t.co/KvDA1L6rts

#Java

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 48

Writing safer & reusable Java code with Generics 🧩

• Type-safe code (errors at compile time)
• No manual casting
• Used heavily in Collections & APIs

🔗 Deep dive → https://t.co/5XsfS2Tz8f

#Java #LearnEveryDay #CodingJourney

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 47

Custom sorting in Java

• Comparable → natural order (inside class)
• Comparator → custom order (outside class)
• Used when sorting objects with Collections.sort()

🔗 Deep dive → https://t.co/h67Sf2ye9N

#Java #CodingJourney

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 46

Traversing Java collections the right way

• Iterator → safe forward traversal
• ListIterator → forward + backward traversal
• Only iterator.remove() is safe while looping

🔗 Deep dive → https://t.co/NAu2pjKzSF

#Java #LearnEveryDay #Coding

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 45

Learning the Queue Interface
Process data in the right order.
• Queue → FIFO processing
• PriorityQueue → highest priority first
• Deque → insert/remove from both ends

🔗 Deep dive → https://t.co/1PzNdc3V8z

#Java #LearnEveryDay #Coding

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 44

Understanding the Map Interface 🗺️
Store data as key → value pairs.
• HashMap → fastest lookup, no order
• TreeMap → keys always sorted
• Keys are unique, values can repeat

🔗 Deep dive →https://t.co/IBohPWN9p0

#Java #LearnEveryDay

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 43

Understanding the Set Interface 🧩
No duplicates — just unique data.
• HashSet → fastest, no order
• LinkedHashSet → maintains insertion order
• TreeSet → sorted elements

🔗 Deep dive → https://t.co/K4nsltxQwf

#Java #LearnEveryDay

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 42

Mastering the List Interface 🧩
Understanding ArrayList vs LinkedList is key.
• List → ordered, allows duplicates
• ArrayList → fast access, slow inserts
• LinkedList → fast inserts, slow access

🔗 Deep dive → https://t.co/QmwQWDt0HK

#Java

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 41

Diving into Java Collections 🧺
A powerful framework to store & manage groups of objects.
• List → ordered, duplicates
• Set → unique elements
• Map → key–value pairs
•

🔗 Deep dive → https://t.co/KTFclroIlD

#Java #LearnEveryDay

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 40

Today’s topic → UML & Class Design 🧩
Model real-world systems before coding.
• Identify classes (nouns)
• Define methods (verbs)
• Map relationships → IS-A, HAS-A

🔗 Deep dive → https://t.co/xF7krwzPGY

#Java #Design # #LearnEveryDay #OOP

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 39

Today’s topic → Design Patterns Basics 🧩
• Factory → central place to create objects
• Singleton → only ONE instance for the whole app

🔗 Deep dive →https://t.co/ojOv4decFD

#Java #DesignPatterns #LearnEveryDay

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 38

Today’s topic → Wrapper Classes 🔄
Object versions of primitives.
• Autoboxing → int → Integer
• Unboxing → Integer → int
• Needed for Collections & Generics

🔗 Deep dive → https://t.co/NJyGy8wx0d

#Java #LearnEveryDay

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 37

Today’s topic → Static & Instance Blocks ⚡
• Static block → runs ONCE when class loads
• Instance block → runs before constructor on every object creation

🔗 Deep dive →https://t.co/shxoWeOVg6

#Java #LearnEveryDay #OOP

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 36

Today’s topic → Anonymous Classes ⚡
Create a class without a name for one-time use.
• Perfect for quick method overrides
• Great for Runnable, Comparator, listeners

Deep dive → https://t.co/6kzWxkzFK8

#Java #OOP #LearnEveryDay

[Xavier Uncle @xavierunclelite]

2026 nahi 2016 aa raha hai.

[Avadhut @av_dhoot]

☕ #JavaFromZero — Day 35

Today’s topic → Enums 🎨

• Replaces fragile strings
• Great for roles, statuses, modes
• Enums can have fields, constructors & methods
• Perfect for APIs & real-world apps

🔗 Deep dive →https://t.co/pIwVEZoXRv

#Java #OOP #LearnEveryDay