Core Java Online Training

Core Java Online Training Course Overview

Duration : 40 Hrs

Introduction to computer languages?

Need of computer languages?

Java V/S other languages

Platform dependency?

Introduction to Java?

History of Java

JDK includes

Versions and Certifications

Platform Independency?

Structure of Java-application?

Contexts of Java application

Introduction to Variable, Blocks and Methods?

• Introduction to variables and identifiers
• Type of variables
• Memory construction and destruction of variables
• Rules to create variables
• Naming conventions of variables
• Blocks introduction
• Methods introduction.

 Datatypes

• Primitive types
• Introduction
• Memory occupancy
• Ranges
• Errors(compile time and runtime)
• Primitive type casting(implicit and explicit)
• Reference types

First java application?

• Class keyword and its naming convention
• Class naming convention
• Why main has public access
• Why main has static modifier
• Why return type is void
• out.println() description
• Naming convention of methods and packages.
• Overloading main method

Operators

• Assignment operator
• Arithmetic operators
• Conditional operator
• Increment/Decrement operators
• Relational operators
• Logical operators
• Bitwise operators
• Shift operators
• Compound assignment operators

Control Statements

• Conditional control statements
  • If
  • If-else
  • If-else-if
  • Nested if
  • switch
• Loop control statements
  • While
  • Do-while
  • For loop
  • Nested loops

• Branching statements
  • break;
  • continue
  • return
  • exit

Methods

• Need of functions.
• Types of functions
• Pre-defined
• User-defined
• Classification of functions
• No args-no return values function
• With args-no return values function
• With args-with return values function
• No args with return values function
• Recursive function.

Class members in java

• Static members(class level)
  1. Static block
  2. Static variables

• Static methods

1. Main method
2. Memory allocation using JVM architecture
3. Accessing Static members in multiple classes

• Class loader usage
• Non-static members(object level)
  1. Non-static block
  2. Non-static variables

• Non-static methods

1. Constructor
2. Introduction to “this” keyword.
3. Memory allocation using JVM architecture

• Accessing Non-static members from multiple classes

Wrapper classes

• Introduction
• Why wrapping
• Boxing and Unboxing
• Auto Boxing and Auto Unboxing
• Primitive to String conversion (using valueOf()and toString() methods)
• String to Primitive conversion (using valueOf() and xxxValue() methods)

Packages

• Introduction
• How to create user defined package
• Calling members of same package
• Calling members of another package
• Need of import statement
• Need of fully qualified name
• Difference between import and include
• Creating Sub packages
• Importing sub packages
• Access specifiers introduction
• public
• private
• protected
• <package> or <default>
• Usage of access specifiers in packages

Command line arguments

• Introduction
• Advantage and disadvantages
• parseXxx methods
• Scanner class
• Random class

OOPS

• Introduction to OOPS
• Introduction to class, object
• Encapsulation, Abstraction
• Inheritance
  1. ‘this’ keyword
• Initialization of object using “this”
• Accessing variable using “this”
• Invoking constructor using “this()”
• Constructor chaining
• “this” as parameter to a function
• Returning “this” to a function
• Calling instance members from non-static context
  1. ‘super’ keyword
• Initialization of super class object
• Constructor chaining in hierarchy
• Instantiation of abstract class
• Accessing super class variable using “super”
• Invoking super class constructor using “super()”
  • Types of inheritance
• Single(simple) inheritance
• Multi level inheritance
• Hierarchal inheritance
• Applying Modifiers and Access specifiers in inheritance
  1. Object casting
     • Implicit & Explicit up casting
     • Implicit & Explicit down casting
     • Data hiding (static and non-static)
     • Introduction to dynamic polymorphism

• final keyword
  • if class is final
  • if method is final
  • if variable is final
  • if abstract class is final
  • if interface is final

• Polymorphism
  • Static polymorphism(method over loading)
  • Runtime polymorphism(method overriding)
• Abstract classes

• Introduction to Abstraction
• Use of Abstraction
• Instantiation of abstract class
• Illegal combination of modifiers
• Initialization of abstract class object
• Super-Sub construction chaining
• Runtime polymorphism in abstraction
  • Interfaces
• Introduction to interfaces
• Use of interfaces
• Extending interfaces
• Implementing interfaces
• Multiple inheritance in java
  • Aggregation
  • Association
  • Composition
  • Singleton class
  • Factory class.

Exception handling

• Introduction
• Why exceptions
• Exceptions API
• Checked exceptions
• Un checked exceptions
• Try, catch, throw, throws, finally
• Nested try blocks
• Multiple catch blocks
• Cautions while handling exceptions
• Handling checked and unchecked exceptions
• Throwing pre-defined exception class object explicitly
• User defined exceptions
• Throwing user-defined exception objects.
• Finally block usage.

Multi threading

• Introduction to multi tasking and multi threading
• Drawbacks in multi tasking
• Creation of Thread
• Life cycle of Thread
• Threads Using Thread class
• Threads Using Runnable interfaces
• Constructors of Thread class.
• Time management in multi tasking and multi threading
• Priorities of threads.
• Naming to threads via constructors or via setters.
• Synchronization
• sleep(),join(), wait(), notify(), notifyAll(),

Garbage collection

• Introduction GC
• Introduction to daemon threads
• Drawbacks of
• finalize()
• gc()
• gc()
• exec();
• JVM memory increment
• Process class.

Io streams

• Byte streams
• Character streams
• Object streams (Serialization)
• Buffered streams
• Working with files
  • Creating a file
  • Creating a directory
  • Creating path
  • Deleting file or directory
  • Hiding file
  • Setting read, write and execute permissions to files

Reflection API

Inner classes

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

Strings

• Introduction to Strings
• Creating objects to String
• String library functions
• Mutable objects
• Immutable objects
• String/StringBuffer/StringReader
• Creating Immutable class

Collections

• Introduction to collections
• Introduction to generics
• Difference between arrays and Collections
• Collection interfaces
• List Interface
• ArrayList
• Vector
• LinkedList
• Set Interface
• HashSet
• Introduction to Hashtable
• Load factor influence
• LinkedHashSet
• TreeSet
• Map Interface
• HashMap
• LinkedHashMap
• TreeMap
• Queue Interface
• LinkedList
• PriorityQueue
• Time management over collection classes
• Memory management over collection classes
• Deleting duplicate objects from collections
• equals() method
• Iterator class
• Enumeration class
• for-each loop
• influence of generics in collections

JDK 8 features

• Functional interfaces
• Lambda expressions
• Default methods in interface
• Static methods in interface
• ForEach() method in Iterable interface
• Stream API
• Method references
• Collectors class
• Optional class

AWT, Applets and Swings

• Introduction to AWT
• AWT library classes and interfaces
• Introduction to Applets
• Creating Applets
• Applet Life cycle
• Drawing shapes and colors in Applets
• Creating components
• LayoutManagement
• Flow layout
• Grid layout
• Box layout
• Border layout
• Event Listeners
• ActionListeners
• TextListeners
• MouseListeners
• MouseMotionListeners
• FocusListeners
• Calculator program
• Introduction to swings
• Swings API
• Light weight components(independent)
• Heavy weight components(native or dependant)
• Components creation
• Menu creation
• Sub menu creation
• Setting Listeners to components