Last Updated on 3 years by ICT Byte

Introduction to OOP

• Introduction to OO: Classes and Objects
• Comparison between structured programming and OOP
• Declaring objects
• Member data and functions
• Encapsulation
• Constructor, destructor and finalize() method
• Chain of constructor
• Invoking base class constructor
• Objects and arrays
• “this” keyword
• Wrapper classes
• Objects as parameter

INHERITANCE AND POLYMORHISM

• Super class, sub class, inheritance and member access
• Types of inheritance
• extends and super keyword
• Overriding methods
• The Object class
• Final classes and methods
• Abstract classes and methods
• Creating and using interface
• Method overloading
• Upcasting and downcasting
• Object equivalence

STRING AND STRINGBUFFER CLASS

• String vs StringBuffer
• Accessor methods
• Immutable string
• Converting objects to string
• Strings and the Java compiler

EXCEPTION HANDLING

• Errors and exceptions
• Why we need to deal with exception
• Life cycle of exception
• Checked and unchecked exception
• Exception hierarchy
• Catching and handling exceptions
• Try, catch and finally block
• Throwing the exception
• Exception class
• Creating our own exception

INPUT AND OUTPUT STREAMS

• Representing and managing file paths
• I/O class hierarchy
• Byte streams and character streams
•  Exception handling in Java I/O
• Java file I/O classes
• Object serialization

JAVA COLLECTIONS

• Java collection and generic
• Iterating collection
• List, ArrayList, LinkedList, Set, HashSet, Map
• Type safety in java collection
• Type wildcards

DESIGN PATTERN

• Introduction to design pattern
• Singleton, factory, abstract factory
• Adapter
• Composite
• Decorator
• Chain of responsibility
• Observer