Trail: Learning the Java Language: Table of Contents
Object-Oriented Programming Concepts
What Is an Object?
What Is a Class?
What Is Inheritance?
What Is an Interface?
What Is a Package?
Questions and Exercises: Object-Oriented Programming Concepts
Language Basics
Variables
Primitive Data Types
Arrays
Summary of Variables
Questions and Exercises: Variables
Operators
Assignment, Arithmetic, and Unary Operators
Equality, Relational, and Conditional Operators
Bitwise and Bit Shift Operators
Summary of Operators
Questions and Exercises: Operators
Expressions, Statements, and Blocks
Questions and Exercises: Expressions, Statements, and Blocks
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: Control Flow Statements
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: Classes
Questions and Exercises: Objects
Nested Classes
Inner Class Example
Summary of Nested Classes
Questions and Exercises: Nested Classes
Enum Types
Questions and Exercises: Enum Types
Annotations
Questions and Exercises: Annotations
Interfaces and Inheritance
Interfaces
Defining an Interface
Implementing an Interface
Using an Interface as a Type
Rewriting Interfaces
Summary of Interfaces
Questions and Exercises: Interfaces
Inheritance
Overriding and Hiding Methods
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: Inheritance
Generics
Introduction
Generic Types
Generic Methods and Constructors
Bounded Type Parameters
Subtyping
Wildcards
Type Erasure
Summary of Generics
Questions and Exercises: Generics
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: Creating and Using Packages
Numbers and Strings
Numbers
The Number Classes
Formatting Numeric Print Output
Beyond Basic Arithmetic
Summary of Numbers
Questions and Exercises: Numbers
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: Characters and Strings
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