S*tep 1: Java Fundamentals (Core Java)*
*1.1 Basics of Java
*
History and Features of Java
Setting up Java and IDE (IntelliJ/Eclipse)
Java Syntax & Program Structure
Hello World Program
1.2 Variables & Data Types
Primitive vs Non-Primitive
Type Casting
Constants (final keyword)
1.3 Operators and Expressions
Arithmetic, Relational, Logical, Bitwise, Assignment
1.4 Control Statements
if, if-else, nested if
switch-case
for, while, do-while loops
break & continue
**Step 2: Arrays & Strings (Strong Concepts)
**
2.1 Arrays
1D and 2D Arrays
Array Traversing, Searching, Sorting
Reverse, Duplicate, Frequency Count, Rotations
2.2 Strings
String, StringBuilder, StringBuffer
Common string operations (substring, replace, equals, compareTo)
Palindrome, Anagram, Word count
*Step 3: Object-Oriented Programming (OOP)
*
Class & Object
Constructor & Constructor Overloading
Inheritance
Polymorphism (Method Overloading & Overriding)
Encapsulation
Abstraction (interface vs abstract class)
this & super keywords
static keyword
*Step 4: Java Memory & Exception Handling
*
Stack vs Heap
Garbage Collection
try, catch, finally, throw, throws
Custom Exceptions
*Step 5: Collections & Generics
*
List (ArrayList, LinkedList)
Set (HashSet, TreeSet)
Map (HashMap, TreeMap)
Queue (PriorityQueue, Deque)
Iterator, ListIterator
Generics in Collections
*Step 6: Java 8+ Features (Modern Java)
*
Lambda Expressions
Functional Interfaces
Stream API
Method References
Optional Class
Date & Time API
*Step 7: File I/O & Serialization
*
Reading & Writing files
FileReader, BufferedReader, FileWriter
Serialization & Deserialization
*Step 8: Multithreading & Concurrency
*
Thread Class & Runnable Interface
Thread Lifecycle
Synchronization
ExecutorService & ThreadPool
wait(), notify(), join()
*Step 9: JDBC (Database Connectivity)
*
JDBC Architecture
Steps to connect to DB
CRUD operations using JDBC
PreparedStatement
Handling SQL Exceptions
*Step 10: Projects in Core Java
*
Student Management System (with File I/O)
Library Management System
ATM Interface
*Step 11: Spring Framework
*
11.1 Spring Core
Dependency Injection (DI)
Beans, ApplicationContext
11.2 Spring Boot
REST API Development
Spring Initializr, Auto Configuration
Controllers, Services, Repositories
Application.properties
11.3 Spring MVC
Model-View-Controller Pattern
RequestMapping, PathVariable, RequestParam
11.4 Spring Data JPA
Entity Mapping
Repository Interfaces
JPQL
Top comments (1)
Thank you all so much for support over the past month!
This community truly kept me going, and to express my gratitude, I’ve written a special article just to say thanks to every one
dev.to/shifa_2/from-zero-to-streak...
It means a lot to be part of such a positive and inspiring space. 🚀
Let’s keep supporting and lifting each other up! ✨
Thank you all so much for support over the past month!
This community truly kept me going, and to express my gratitude, I’ve written a special article just to say thanks to every one
dev.to/shifa_2/from-zero-to-streak...
It means a lot to be part of such a positive and inspiring space. 🚀
Let’s keep supporting and lifting each other up! ✨