Online Java Training

Core Java Training in Jalandhar

In this online Java Training class, we will cover all the basics topics of Java. After completing this online Java Training you will able to create core Java applications. During this Online Java Training, you will get the live online class of each Java Topic and you will also get Notes of each topic. For more information, you can send us an email on

We provide Free Demo class. Click here to book your Demo Class.

Key Features:

  • Flexible Timing
  • Complete Syllabus
  • Live Online Training
  • Cost-Effective
  • Two Assignments


  • Basics of Java
    • Java – What, Where and Why?
    • History and Features of Java
    • Internals of Java Program
    • Difference between JDK, JRE and JVM
    • Internal Details of JVM
    • Variable and Data Type
    • Unicode System
    • Naming Convention
  • OOPS, Concepts:
    • Advantage of OOPs
    • Object and Class
    • Method Overloading
    • Constructor
    • static variable, method and block
    • this keyword
    • Inheritance (IS-A)
    • Aggregation and Composition(HAS-A)
    • Method Overriding
    • Covariant Return Type
    • super keyword
    • Instance Initializer block
    • final keyword
    • Runtime Polymorphism
    • static and Dynamic binding
    • Abstract class and Interface
    • Downcasting with instanceof operator
    • Package and Access Modifiers
    • Encapsulation
    • Object class
    • Object Cloning
    • Java Array
    • Call By Value and Call By Reference
    • strictfp keyword
    • Creating API Document
  • String Handling
    • String: What and Why?
    • Immutable String
    • String Comparison
    • String Concatenation
    • Substring
    • Methods of String class
    • StringBuffer class
    • StringBuilder class
    • Creating Immutable class
    • toString method
    • StringTokenizer class
  • Exception Handling
    • Exception Handling: What and Why?
    • try and catch block
    • Multiple catch block
    • Nested try
    • finally, block
    • throw keyword
    • Exception Propagation
    • throws keyword
    • Exception Handling with Method Overriding
    • Custom Exception
  • Nested Classes
    • Nested Class: What and Why?
    • Member Inner class
    • Anonymous Inner class
    • Local Inner class
    • static nested class
    • Nested Interface
  • Multithreading
    • Multithreading: What and Why?
    • Life Cycle of a Thread
    • Creating Thread
    • Thread Scheduler
    • Sleeping a thread
    • Joining a thread
    • Thread Priority
    • Daemon Thread
    • Thread Pooling
    • Thread Group
    • ShutdownHook
    • Performing multiple tasks by multiple threads
    • Garbage Collection
    • Runnable class
  • Synchronization
    • Synchronization: What and Why?
    • synchronized method
    • synchronized block
    • static synchronization
    • Deadlock
    • Inter-thread Communication
    • Interrupting Thread
  • Input and output
    • FileOutputStream & FileInputStream
    • ByteArrayOutputStream
    • SequenceInputStream
    • BufferedOutputStream & BufferedInputStream
    • FileWriter & FileReader
    • CharArrayWriter
    • Input from the keyboard by InputStreamReader
    • Input from the keyboard by Console
    • Input from the keyboard by Scanner
    • PrintStream class
    • PrintWriter class
    • Compressing and Uncompressing File
    • Reading and Writing data simultaneously
    • DataInputStream and DataOutputStream
    • StreamTokenizer class
  • Serialization
    • Serialization & Deserialization
    • Serialization with IS-A and Has-A
    • transient keyword

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13 thoughts on “Online Java Training”

  1. Excellent experience with owl buddy. Basically i belong to electrical background and not have to much knowledge of coding languages, sir taught in great manner about core Java now I have good command on it.

  2. I done my course that is core java and i learn very interesting things and get more deep knowledge about this course also the teacher Mr.parvesh sir is well trained person in this course.thanku sir.

  3. Fabulous teaching and mind blowing teacher
    Very cooperative and intelligent and best course.I really learned a lot through this.

  4. Excellent!!The concepts of Java programming language and object oriented programming are explained in clear and concise way.This course helped me to learn how to write more efficient and scalable code.Assignments help you to get hands-on practice and are easy to complete within given amount of time .
    I recommend it everyone who want to build a strong base in Java .
    Thanks you Parvesh sir.

  5. I am a student of BITS Pilani, Hyderabad campus. Last year, I completed core JAVA course from owlbuddy. All the topics were explained very beautifully. More focus was given on programming instead of just theory. It was an amazing experience and every penny spent on the course was worth it.

  6. Last month i completed my internship in java with android from owlbuddy.This was my first experience i ever had.This was the super experience.And it is possible because of owlbuddy.
    Thank you so much Parvesh Sir.

  7. I was thinking to attend Java classes but I don’t think so it would be possible because of lockdown. I would like to attend this online Java Training. But can you provide me a demo class?

  8. Last month I completed my core Java Training from Owlbuddy. I think it was my one of the best decision. I would like to say thank you so much Parvesh Sir.

  9. Superb Experience. After completing my Java training from Owlbuddy. I am able to complete my college assignments by my own. Thank you Parvesh Sir.

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