Acrosys Technologies

Core Java Developer Course

Duration: 4 Months / 16 Weeks
Level: Beginner to Job-Ready
Technology Stack: Java, OOP, Collections, Exception Handling, Multithreading, JDBC, SQL, Java 8+, Git, Maven and Project Development

Month 1: Java Fundamentals and OOP

Introduction to Java
Features of Java
Java editions and applications
JDK, JRE and JVM
Installing JDK
Installing IntelliJ IDEA / Eclipse
Java program structure
Compiling and running Java programs
Variables and constants
Primitive data types
Type casting
Operators
Input and output
Conditional statements
if, if-else and switch
Loops
break and continue

Practical: Calculator, simple interest and student grade applications.

One-dimensional arrays
Multi-dimensional arrays
Array traversal
Searching arrays
Sorting arrays
String fundamentals
String methods
String comparison
StringBuilder
StringBuffer
Methods and parameters
Return values
Method overloading
Pass by value
Recursive methods
Command-line arguments

Mini-project: Student marks and result management application.

Classes and objects
Instance variables
Instance methods
Constructors
Constructor overloading
this keyword
Static members
Inheritance
Single inheritance
Multilevel inheritance
Hierarchical inheritance
Method overriding
super keyword
Encapsulation
Access modifiers
Abstraction
Abstract classes
Interfaces
Polymorphism

Mini-project: Console-based employee management system.

Packages
Creating custom packages
Import statements
Interfaces and multiple inheritance
Default interface methods
Functional interfaces
Exception handling fundamentals
try and catch
finally
throw and throws
Checked exceptions
Unchecked exceptions
Custom exceptions
Nested try blocks
Exception propagation

Mini-project: Banking transaction application with custom exception handling.

Month 2: Collections, Java 8 and Advanced Java

Introduction to Collections
Collection hierarchy
List interface
ArrayList
LinkedList
Vector
Stack
Set interface
HashSet
LinkedHashSet
TreeSet
Map interface
HashMap
LinkedHashMap
TreeMap
Iterator
Comparable
Comparator

Mini-project: Product inventory management using Java Collections.

Generic classes
Generic methods
Bounded generics
Wrapper classes
Autoboxing
Unboxing
Enum
Date and time API
File and directory handling
FileReader and FileWriter
BufferedReader and BufferedWriter
InputStream and OutputStream
Serialization
Deserialization
Reading and writing CSV files

Mini-project: Employee file management application.

Java 8 overview
Lambda expressions
Functional interfaces
Predicate
Consumer
Supplier
Function
Method references
Stream API
filter
map
sorted
distinct
reduce
collect
Optional
forEach
Parallel streams

Mini-project: Employee analytics application using Stream API.

Process and thread concepts
Creating threads
Thread class
Runnable interface
Thread lifecycle
Thread priorities
sleep()
join()
Synchronization
Race conditions
Deadlocks
Inter-thread communication
ExecutorService
Callable and Future
Concurrent collections
Atomic operations

Mini-project: Multithreaded ticket booking simulation.

Month 3: JDBC, SQL and Database Programming

Database concepts
Relational databases
MySQL / SQL Server introduction
Creating databases
Creating tables
Data types
Primary keys
Foreign keys
INSERT
SELECT
UPDATE
DELETE
WHERE clause
ORDER BY
GROUP BY
Aggregate functions
Joins
Subqueries

Mini-project: Customer, product and sales database.

Introduction to JDBC
JDBC architecture
JDBC drivers
Database connection
Connection interface
Statement
PreparedStatement
CallableStatement
ResultSet
Executing SQL queries
Parameterized queries
Stored procedures
Transactions
Commit and rollback
Batch processing
Preventing SQL injection

Mini-project: JDBC-based customer management application.

DAO design pattern
DTO classes
Service layer
Repository concepts
CRUD operations using DAO
Connection pooling
Database transaction management
Stored procedure integration
Database error handling
Pagination
Searching
Sorting
Filtering database records
JDBC best practices

Project: Employee management system using Java, JDBC and SQL.

Computer networking basics
Client-server architecture
HTTP and HTTPS
URL and URI concepts
Java networking APIs
Socket programming basics
REST API concepts
GET and POST requests
JSON fundamentals
JSON parsing
Calling external APIs
HTTP clients
API response handling

Mini-project: Java application consuming a public REST API.

Month 4: Java Development, Tools and Final Project

Introduction to Maven
Maven project structure
pom.xml
Dependencies
Maven lifecycle
Build and packaging
Git fundamentals
Creating Git repositories
Commit and push
Pull and clone
Branches
Merging
Merge conflict resolution
GitHub project management

Practical: Create and publish a Java Maven project on GitHub.

Software testing fundamentals
Unit testing concepts
JUnit introduction
Writing test cases
Assertions
Test lifecycle
Parameterized tests
Exception testing
Debugging Java applications
Breakpoints
Debugging collections and objects
Logging fundamentals
Application error handling

Practical: Create JUnit test cases for an employee management application.

Core Java interview questions
OOP interview questions
String and StringBuilder problems
Array programming problems
Collections programming problems
Exception handling questions
Multithreading questions
Java 8 interview questions
Stream API problems
JDBC interview questions
SQL interview questions
Debugging exercises
Programming challenges
Resume preparation
Mock technical interviews

Practical: Java coding test and mock technical interview.

Students will create a complete Java application containing:

Java object-oriented architecture
Collections
Exception handling
Java 8 features
SQL database
JDBC integration
CRUD operations
DAO and service layers
Search and filtering
Pagination
Input validation
Error handling
JUnit testing
Maven project structure
GitHub repository
Project documentation

Suggested Final Projects

Banking Management System
Employee Management System
Hospital Management System
Student Management System
Library Management System
Sales and Inventory Management System
Hotel Management System
Online Examination System
Customer Relationship Management System
Job Portal Application

Assessment Structure

Assessment	Weightage
Weekly practical assignments	15%
Java programming assignments	10%
OOP and Collections project	10%
JDBC and SQL project	15%
Java 8 and advanced programming project	15%
Final Java project	30%
Attendance and presentation	5%