Core Java

Brief History of Java.

Object class in Java. 2

Java Tokens.

Keywords. 2

Identifier 3

Literals. 3

Integer literals. 4

Integer literals: 4

Character literals: 4

String Literals: 5

Null Literals. 5

Boolean Literals: 6

Operators. 6

Arithmetic Operators. 6

Equality, Relational Operators. 6

Logical Operators. 6

Assignment Operators. 7

Increment and decrement Operators. 7

Conditional Operators. 7

Bitwise Operators. 8

Special Operators. 8

Separators. 8

Setting Development Environment

Creating Your First Application.

The HelloWorldApp Class Definition

Variable. 18

Variables and Types. 19

Local variables: 20

Instance variables: 20

Class/static variables: 21

Data Types in Java. 21

primitive data types. 21

non-primitive data types. 21

Arrays. 22

Strings.

Data Type Casting.

1. Implicit casting (widening conversion) 24

2. Explicit casting (narrowing conversion) 25

Module-II. 26

Control Flow Statements. 26

The if-then Statement 26

The if-then-else Statement 27

shorthand for if-then-else statement 27

Else if Statement 28

The switch Statement

The while and do-while Statements

The for Statement 34

Enhanced for loop: 35

Branching Statements. 35

The break Statement 35
The break Statement with label

The continue Statement 37

Module - III. 38

Classes and Objects in Java. 38

Object in Java. 38

Declaring Classes. 39

Access Modifiers. 39

Defining Methods. 39

The return Statement 40

Naming a Method.

Overloading Methods

Constructor in java. 41

Providing Constructors for Your Classes. 42

Creating Objects

Declaring a Variable to Refer to an Object

Instantiating a Class. 43

Using Objects

Calling an Object's Methods. 47

Returning a Class or Interface from Method. 47

Using this Keyword

Using this with a Constructor 49
Garbage Collector

Inheritance

Types Of Inheritance.

Controlling Access to Members of a Class. 54

Overriding and Hiding Methods. 55
Interface Methods

Using the Keyword super 62
Polymorphism

Nested Classes. 63

Why Use Nested Classes?

Static Nested Classes. 64

Inner Classes.

Shadowing.

Serialization. 66

Local Classes

Anonymous Classes

Writing Final Classes and Methods

Interfaces.

Implementing an Interface.

Default Methods and interface

Extending Interfaces That Contain Default Methods. 80

Abstract Classes Compared to Interfaces. 83

Java Packages

Methods Of java.lang.Math Class

The Garbage Collector 115

Module - IV.. 115

Exception. 115

Errors and runtime exceptions are collectively known as unchecked exceptions. 116

Catching and Handling Exceptions. 117

The try Block. 117

catch Blocks. 117

The finally Block. 117

How to Throw Exceptions. 119

The throw Statement 119

Module- V.. 121

I/O Streams. 121

File I/O (Featuring NIO.2) 122

Byte Streams. 123

Using Byte Streams. 123

Character Streams. 123

Using Character Streams. 124

Line-Oriented I/O.. 125

Buffered Streams. 126

Flushing Buffered Streams. 127

Scanning. 127

Breaking Input into Tokens. 127

Translating Individual Tokens. 128

I/O from the Command Line. 133

The Console. 134

Annotations. 136

The Format of an Annotation. 136

Predefined Annotation Types. 139

Annotation Types Used by the Java Language. 139

Annotations That Apply to Other Annotations. 140

Type Annotations and Pluggable Type Systems. 141

Repeating Annotations. 142

Step 1: Declare a Repeatable Annotation Type. 143

Step 2: Declare the Containing Annotation Type. 143

Retrieving Annotations. 143

Design Considerations. 144

Lesson: Generics (Updated) 144

Arbitrary Number of Arguments. 159

Formatting Numeric Print Output 163

Autoboxing and Unboxing. 167

Module -VI. 169

JFC and Swing. 169

Which Swing Packages Should I Use?. 170

Using Top-Level Containers. 170

How to Make Frames (Main Windows) 170

Responding to Window-Closing Events. 172

Swing Components. 172

Labels. 172

Text Components. 173

Text Fields. 174

Text Areas. 174

Buttons, Check Boxes, and Radio Buttons. 174

Check box. 175

Radio Buttons. 176

Combo Boxes. 177

Layout Managers. 178

BorderLayout 178

BoxLayout.. 179

CardLayout 179

FlowLayout 183

GridBagLayout 183

GridLayout 183

GroupLayout.. 184

SpringLayout.. 184

Event Listeners. 185

Event Deligation Model 185

Event Objects. 185

Low-Level Events and Semantic Events. 185

Writing Event Listeners. 186

Write an Action Listener 186

Write a Key Listener 188

Mouse Listener 195

Mouse-Motion Listener 197

Dialogs. 199

JOptionPane Features. 199

Creating and Showing Simple Dialogs. 200

ShowMessageDialog. 201

Customizing Button Text 203

Getting the User's Input from a Dialog. 204

Stopping Automatic Dialog Closing. 206

File Choosers. 207

Menus. 210

Tool Bars  220