Learning the Java Language

Unknow:

1/ Use interface as a data type

2/ Inner Class


3/ Generic

1. Object-Oriented Programming Concepts

• What Is an Object?


• What Is a Class?


• What Is Inheritance?


• What Is an Interface?


• What Is a Package?

2. Language Basics

Variables

• Primitive Data Types


• Arrays


• Summary of Variables


• Questions and Exercises

Operators

• Assignment, Arithmetic, and Unary Operators


• Equality, Relational, and Conditional Operators


• Bitwise and Bit Shift Operators


• Summary of Operators


• Questions and Exercises

Expressions, Statements, and Blocks

• Questions and Exercises

Control Flow Statements

• The if-then and if-then-else Statements


• The switch Statement


• The while and do-while Statements


• The for Statement


• Branching Statements


• Summary of Control Flow Statements


• Questions and Exercises

3. Classes and Objects

Classes

• Declaring Classes


• Declaring Member Variables


• Defining Methods


• Providing Constructors for Your Classes


• Passing Information to a Method or a Constructor

Objects

• Creating Objects


• Using Objects

More on Classes

• Returning a Value from a Method


• Using the this Keyword


• Controlling Access to Members of a Class


• Understanding Instance and Class Members


• Initializing Fields


• Summary of Creating and Using Classes and Objects


• Questions and Exercises


• Questions and Exercises

Nested Classes

• Inner Class Example


• Summary of Nested Classes


• Questions and Exercises

Enum Types

• Questions and Exercises

Annotations

• Questions and Exercises

4. Interfaces and Inheritance

Interfaces

• Defining an Interface


• Implementing an Interface


• Using an Interface as a Type


• Rewriting Interfaces


• Summary of Interfaces


• Questions and Exercises

Inheritance

• Overriding an
  d Hiding Methods


• Polymorphism


• Hiding Fields


• Using the Keyword super


• Object as a Superclass


• Writing Final Classes and Methods


• Abstract Methods and Classes


• Summary of Inheritance


• Questions and Exercises

5. Numbers and Strings

Numbers

• The Numbers Classes


• Formatting Numeric Print Output


• Beyond Basic Arithmetic


• Summary of Numbers


• Questions and Exercises

Characters

Strings

• Converting Between Numbers and Strings


• Manipulating Characters in a String


• Comparing Strings and Portions of Strings


• The StringBuilder Class


• Summary of Characters and Strings


• Questions and Exercises

6. Generics

• Introduction


• Generic Types


• Generic Methods and Constructors


• Bounded Type Parameters


• Subtyping


• Wildcards


• Type Erasure


• Summary of Generics


• Questions and Exercises

7. Packages

• Creating and Using Packages


• Creating a Package


• Naming a Package


• Using Package Members


• Managing Source and Class Files


• Summary of Creating and Using Packages


• Questions and Exercises

Swing

http://download.oracle.com/javase/tutorial/uiswing/components/index.html