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Core Java Training

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Core Java Online Training in India

Join in CRS Info Solutions Core Java Online Training in India to get expertise on real time concepts and industry based test cases including real time projects, interview questions and resume preparation.


  • Introduction to java platform, javac, java, data types, source file, comments, setup.

Flow Control

  •  Conditional constructs
  • Different types of if condition
  • Looping constructs.
    • While
    • Do-while
    • For
    • For-each
  • break, continue
  • Switch statement

Object Oriented Programming

  • Introduction to Object Oriented Programming.
  • Introduction to Classes and Objects.
  • Instance & Static variables
  • Constructor
  • Methods
  • Instance & Static methods


  • Package creation
  • Importing packages
  • Importing Class


  • Extending classes
  • Constructor calling chain
  • The “super” keyword
  • Method  overriding
  • Method  hiding
  • Final Class and Method

Abstract classes and Interfaces

  • Abstract methods
  • Abstract classes
  • Interfaces
  • Implementing interfaces
  • Abstract class vs. Interfaces

Inner classes

  • Non-static inner class
  • Static inner class
  • Local inner class
  • Anonymous inner class

Exception Handling

  • Introduction to exceptions
  • Effects of exception
  • Exception Handling framework
  • Exception class Hierarchy
  • Custom exception class
  • Assertions

Memory Management

  • Different types of memory used in Java
  • Garbage Collection
  • Memory Leaks

Collections Framework

  • Introduction to collections
  • Core Collection Interfaces
  • List interface and its implementations
  • Set interface and its implementations
  • Queue interface and its implementations
  • Map interface and its implementations

Java I/O Stream

  • I/O Streams Introduction
  • Types of Streams
  • Stream class Hierarchy
  • Buffered Streams
  • Working File Streams


  • Introduction to serialization
  • Serialization process
  • Deserialization process


  • Introduction to threads
  • Thread states and priorities
  • Thread class
  • Runnable interface
  • Thread Group
  • Synchronization
  • Inter thread communication

Generics, Enums, AutoBoxing

Internationalization., Locale, Formatting text and dates


    • Introduction to logging
    • Loggers
    • Handlers
    • Formatters
    • Configuration


  • Understanding the design of  JBDC API
  • Obtaining JDBC Drivers
  • Establish connection with DB Servers.
  • Execute SQL Queries using Statement and Prepared Statement.
  • Fetch the data
    • Reading the records using result set object
  • Adding and updating the records

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