Java Notes

✍ Arjun Adhikari

Java is a general-purpose computer-programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible.

In a hurry ?

1. Basics
2. Control Flow
3. Arrays
4. Classes and Objects
5. Inheritance
6. Packages
7. Exception
8. IO
9. Applet
10. AWT
11. Managing Layout
12. Event
13. Swing
14. Graphics
15. JDBC
16. Networking

Basics

⏩ Introduction, History
⏩ Benefits of Java & Platform Independency
⏩ Identifier
⏩ Reserved Words
⏩ Data Types // TBC
⏩Literals

Control Flow

⏩ If Else
⏩ While
⏩ Do while
⏩ For Loop
⏩ For Each
⏩ Switch Case

Arrays

⏩ About Array
⏩ Array as Matrix
⏩ Conventional Array Representation
⏩ Array Representation 01
⏩ Array Representation 02

Classes and Objects

⏩ Basics
⏩ More on Classes and Objects
⏩ Access Modifiers
⏩ Constructors
⏩ Nested Inner Class
⏩ Final
⏩ Static

Inheritance

⏩ Introduction
⏩ Super Class & its Access
⏩ Order of Derivation

⤴ How constructor are executed in inheritance ?

⏩ Method Overriding
⏩ Dynamic Method Dispatch

⤴ How Java implements run-time polymorphism ?

⏩ Final with Inheritance
⏩ Abstract Class
⏩ Interface
⏩ Implementing Interface
⏩ Interface can be Extended
⏩ Nested Interface

Packages

⏩ Introduction & Implementation
⏩ Setting Classpath

Exception

⏩ Introduction
⏩ Multiple Catch
⏩ Nested Try
⏩ Throw
⏩ Finally
⏩ Throws
⏩ Builtin Exception
⏩ Chained Exception

Input/Output

File

⏩ Introduction

Programs on File class

⏩ Creates file inside folder
⏩ Creates files
⏩ Counts only files on default directory
⏩ Displays files and directories
⏩ Displays files and directories based on Command Line Arguments passed

FileWriter

⏩ Introduction
⏩ Code Implementation

FileReader

⏩ Introduction
⏩ Code Implementation

BufferedWriter

⏩ Introduction
⏩ Code Implementation

BufferedReader

⏩ Introduction
⏩ Code Implementation

PrintWriter

⏩ Introduction
⏩ Code Implementation

Applet

⏩ Introduction
⏩ Code Implementation
⏩ Tutorials on Applet
⏩ Life Cycle of Applet
⏩ Passing Parameter to Applet
⏩ Setting Custom Font Face and Font Size
⏩ Nepal's Flag in Applet using AWT Graphics
⏩ Image in Applet

AWT

⏩ Introduction
⏩ AWT Controls

Label

⏩ Introduction
⏩ Code Implementation One
⏩ Code Implementation Two
⏩ Code Implementation Three

Button

⏩ Introduction
⏩ Code Implementation - Applet
⏩ Code Implementation - Frame

TextField

⏩ Introduction
⏩ Code Implementation - Applet
⏩ Code Implementation - Frame

TextArea

⏩ Introduction
⏩ Code Implementation

CheckBox

⏩ Introduction
⏩ Code Implementation

CheckBoxGroup

⏩ Introduction
⏩ Code Implementation

Choice

⏩ Introduction
⏩ Code Implementation

List

⏩ Introduction
⏩ Code Implementation

ScrollBar

⏩ Introduction
⏩ Code Implementation

Menu

⏩ Code Implementation

LayoutManager

FlowLayout

⏩ Introduction
⏩ Code Implementation

BorderLayout

⏩ Introduction
⏩ Code Implementation
⏩ Code Implementation Two

GridLayout

⏩ Introdution
⏩ Code Implementaion One
⏩ Code Implementation Two

CardLayout

⏩ Introduction
⏩ Code Implementation

GridBagLayout

⏩ Introduction
⏩ Code Implementation One
⏩ Code Implementation Two - Stages of Life

Event & Events Handling

⏩ Events, Event Listener, Event Source, Event Handling & Event Delegation Model
⏩ Events Classes
⏩ Event Listeners

Action Listener

⏩ Introduction
⏩ Code Implementation

Adjustment Listener

⏩ Introduction
⏩ Code Implementation // TODO

Component Listener

⏩ Introduction
⏩ Code Implementation // TODO

Container Listener

⏩ Introduction
⏩ Code Implementation // TODO

Focus Listener

⏩ Introduction
⏩ Code Implementation // TODO

Item Listener

⏩ Introduction
⏩ Code Implementation // TODO

Key Listener

⏩ Introduction
⏩ Code Implementation

Mouse Listener

⏩ Introduction
⏩ Code Implementation

MouseMotion Listener

⏩ Introduction
⏩ Code Implementation

MouseWheel Listener

⏩ Introduction

Text Listener

⏩ Introduction
⏩ Code Implementation

WindowFocus Listener

⏩ Introduction
⏩ Code Implementation // TODO

Window Listener

⏩ Introduction
⏩ Code Implementation

Adapter Class

⏩ Introduction
⏩ Code Implementation One
⏩ Close By Window Button

Swing

⏩ Swing Components
⏩ Swing's Component's Hierarchy
⏩ Differences Between AWT and Swing

Multicasting

⏩ Introduction
⏩ Code Implementation

JApplet

⏩ Code Implementation

JFrame

⏩ Extending JFrame
⏩ JFrame By Association

JTextField

⏩ Code Implementation

JOptionPane

⏩ Code Implementation

Dialog in Swing

⏩ Code Implementation

Graphics

Color

⏩ Introduction
⏩ Color Controls
⏩ Demonstrates Color using JPanel
⏩ Demonstrates Color using Applet
⏩ Show Colors

Font

⏩ Introduction
⏩ Custom Font and Size
⏩ Font Metrics Introduction
⏩ Font Metrics Implementation

Geometry

⏩ Introduction
⏩ DrawArc Implementation
⏩ DrawOval Implementation
⏩ DrawRect Implementation
⏩ PolyLine Implementation
⏩ Polygon Implementation
⏩ Round Rectangle Implementation

Exercises

⏩ Smileys
⏩ Bar Chart
⏩ Nepal's Flag

JDBC

⏩ Introduction
⏩ Difference between ODBC and JDBC
⏩ Steps to develop JDBC Application
⏩ Difference between Statement and Prepared Statement
⏩ JDBC Features
⏩ JDBC Drivers
⏩ SQL Commands
⏩ SQL Injection

Implementation

⏩ Select Operation
⏩ Select Operation Two
⏩ Create Operation
⏩ Create Table from Java Code
⏩ Update Operation
⏩ Delete Operation

Networking

⏩ Introduction
⏩ URL Class
⏩ InetAddress Class
⏩ InetAddress Implementation
⏩ URL Implementation
⏩ URL Connection Implementation
⏩ HttpURL Connection Implementation
⏩ Is Internet Available ?
⏩ Whois Implementation

Socket Programming

⏩ Introduction
⏩ Chat Application
⏩ ConnectionLess Networking
⏩ ConnectionLess Messaging