Java
Book - 2022
Learn to write practical, reusable code with the straightforward tutorials and tips in the newest edition of this For Dummies best-seller.
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- Subjects
- Genres
- Informational works
- Published
-
Hoboken, New Jersey :
John Wiley & Sons
[2022]
- Language
- English
- Main Author
- Edition
- Eighth edition
- Item Description
- "Learning made easy"--Cover.
- Physical Description
- xii, 497 pages : illustrations ; 23 cm
- Bibliography
- Includes index.
- ISBN
- 9781119861645
- Introduction
- About This Book
- Foolish Assumptions
- Icons Used in This Book
- Beyond the Book
- Where to Go from Here
- Part 1. Getting Started with Java
- Chapter 1. All about Java
- What You Can Do with Java
- Why You Should Use Java
- Gaining Perspective: Where Java Fits In
- Object-Oriented Programming (OOP)
- Object-oriented languages
- Objects and their classes
- What's so great about an object-oriented language?
- Objects and classes are everywhere
- What's Next?
- Chapter 2. All about Software
- Get Ready for Java
- The Inside Scoop
- What is a compiler?
- What is a Java virtual machine?
- Developing Software
- Spoiler Alert!
- Chapter 3. Using the Basic Building Blocks
- Speaking the Java Language
- The grammar and the common names
- The words in a Java program
- Checking Out Java Code for the First Time
- Understanding a Simple Java Program
- The Java class
- The Java method
- The main method in a program
- How you finally tell the computer to do something
- Brace yourself
- And Now, a Few Comments
- Adding comments to your code
- What's Barry's excuse?
- Using comments to experiment with your code
- Part 2. Writing Your Own Java Programs
- Chapter 4. Making the Most of Variables and Their Values
- Varying a Variable
- Assignment statements
- The types of values that variables may have
- How to hold the line
- Numbers without decimal points
- Combining declarations and initializing variables
- Experimenting with JShell
- What Happened to All the Cool Visual Effects?
- The Atoms: Java's Primitive Types
- The char type
- The boolean type
- The Molecules and Compounds: Reference Types
- An Import Declaration
- Creating New Values by Applying Operators
- Initialize once, assign often
- The increment and decrement operators
- Assignment operators
- Chapter 5. Controlling Program Flow with Decision-Making Statements
- Making Decisions (Java if Statements)
- Guess the number
- She controlled keystrokes from the keyboard
- Creating randomness
- The if statement
- Equal, equal
- Brace yourself
- Your intent to indent
- Elseless in Helsinki
- Using Blocks in JShell
- Forming Conditions with Comparisons and Logical Operators
- Comparing numbers; comparing characters
- Comparing objects
- Look!
- Java's logical operators
- Vive les nuls!
- (Conditions in parentheses)
- The Nesting Habits of if Statements
- Choosing among Many Alternatives
- Java's glorious switch statement
- A switch in time saves 14
- Your grandparents' switch statement
- Free fall
- Chapter 6. Controlling Program Flow with Loops
- Repeating Instructions Over and Over Again (Java while Statements)
- Count On Me
- The anatomy of a for statement
- The world premiere of "Al's All Wet'
- You Can Always Get What You Want
- The root of the matter
- Reading a single character
- File handling in Java
- Block on the while side
- Part 3. Working with the Big Picture: Object-Oriented Programming
- Chapter 7. The Inside scOOP
- Defining a Class (What It Means to Be an Account)
- Declaring variables and creating objects
- Initializing a variable
- Using an object's fields
- One program; several classes
- Declaring a public class
- Defining a Method within a Class (Displaying an Account)
- An account that displays itself
- The display method's header
- Sending Values to and from Methods (Calculating Interest)
- Passing a value to a method
- Returning a value from the getInterest method
- Giving Your Numbers a Makeover
- Hide-and-Seek
- Good programming
- Public lives and private dreams: Making a field inaccessible
- Enforcing rules with accessor methods
- Barry's Own GUI Class
- Chapter 8. Saving Time and Money: Reusing Existing Code
- What It Means to Be an Employee
- The last word on employees
- Putting your class to good use
- Cutting a check
- Working with Disk Files (a Brief Detour)
- Storing data in a file
- Repeat after me
- Reading from a file
- Who moved my file?
- You moved your file!
- Reading a line at a time
- Clean up after yourself
- Defining Subclasses (What It Means to Be a Full-Time or Part-Time Employee)
- Creating a subclass
- Creating subclasses is habit-forming
- Using Subclasses
- Making types match
- The second half of the story
- Changing the Payments for Only Some of the Employees
- A Java annotation
- Using methods from classes and subclasses
- Chapter 9. Constructing New Objects
- Defining Constructors (What It Means to Be a Temperature)
- What is a temperature?
- What is a temperature scale? (Java's enum type)
- Okay, so then what is a temperature?
- What you can do with a temperature
- Constructing a temperature; a slow-motion replay
- Some things never change
- Doing Something about the Weather
- Building better temperatures
- Constructors for subclasses
- Using all this stuff
- The default constructor
- A Constructor That Does More
- Classes and methods from the Java API
- Live dangerously
- Part 4. Smart Java Techniques
- Chapter 10. Putting Variables and Methods Where They Belong
- Defining a Class (What It Means to Be a Baseball Player)
- Another way to beautify your numbers
- Using the Player class
- One class; nine objects
- Don't get all GUI on me
- Some facts about potatoes
- Making Static (Finding the Team Average)
- Why is there so much static?
- Meet the static initializer
- Displaying the overall team average
- The static keyword is yesterday's news
- Could cause static; handle with care
- Experiments with Variables
- Putting a variable in its place
- Telling a variable where to go
- Passing Parameters
- Pass by value
- Returning a result
- Pass by reference
- Returning an object from a method
- Epilogue
- Chapter 11. Using Arrays to Juggle Values
- Getting Your Ducks All in a Row
- Creating an array in two easy steps
- How to book hotel guests
- Tab stops and other special things
- Make life easy for yourself
- Stepping through an array with the enhanced for loop
- Do you have a room?
- Writing to a file
- When to close a file
- Arrays of Objects
- Using the Room class
- Yet another way to beautify your numbers
- The conditional operator
- How to Argue with Your Code
- Settling the argument
- Checking for the right number of program arguments
- Chapter 12. Using Collections and Streams (When Arrays Aren't Good Enough)
- Arrays Have Limitations
- Collection Classes to the Rescue
- Using an ArrayList
- Using generics
- Wrap it up
- Are we done yet?
- Once and again
- So many collection classes!
- Functional Programming
- Problem-solving the old-fashioned way
- Lambda expressions
- A black sheep among the lambdas
- A taxonomy of lambda expressions
- The interpretation of streams
- Why bother?
- Method references
- Chapter 13. Looking Good When Things Take Unexpected Turns
- Garbage In
- The parameter in a catch clause
- Do it yourself
- Who will catch the exception?
- Catching two or more exceptions at a time
- The Buck Stops Here, Except When it Doesn't
- Catch it soon
- Catch it later
- Checked or unchecked?
- Try, Try Again!
- Chapter 14. Sharing Names among the Parts of a Java Program
- Access Modifiers
- Classes and Their Members
- Public and Private Access for Members
- Drawing on a frame
- Putting a package in its place
- Making a frame
- Default Access for Members
- Switching to Default access
- Accessing default members within a package
- Protected Access for Members
- A class in one package and a subclass in another
- Two classes in the same package
- Access Modifiers for Java Classes
- Public classes
- Nonpublic classes
- From Classes Come Modules
- Chapter 15. Fancy Reference Types
- Java's Types
- The Java Interface
- Declaring two interfaces
- Implementing interfaces
- Putting the pieces together
- Abstract Classes
- Caring for your pet
- Using all your classes
- Relax! You're Not Seeing Double!
- Chapter 16. Java's Juggling Act
- Juggling Two or More Calls
- Events and event handling
- Follow the thread
- Don't miss this
- Inside the actionPerformed method
- Some Events Aren't Button Clicks
- The Inner Sanctum
- Chapter 17. Using Java Database Connectivity
- Creating a^Database and a Table
- Seeing what happens when you run the code
- Using SQL commands
- Connecting and disconnecting
- Putting Data in the Table
- Retrieving Data
- Destroying Data
- One Step Beyond
- Part 5. The Part of Tens
- Chapter 18. Ten Packs of Java Websites
- This Book's Website
- For Business Issues Related to This Book
- Download the Java Development Kit
- Your Grandparents' Java Download Site
- The Horse's Mouth
- Join Java User Groups
- Find the Latest News about Java
- Find News, Reviews, and Sample Code
- Got a Technical Question about Anything?
- Become Involved in the Future of Java
- Chapter 19. Ten Bits of Advice for New Software Developers
- How Long Does It Take to Learn Java?
- Which of Your Books Should I Read?
- Are Books Other than Yours Good for Learning Java and Android Development?
- Which Computer Programming Language(s) Should I Learn?
- Which Skills Other than Computer Coding Should i Learn?
- How Should I Continue My Learning as a Software Developer?
- How Else Should I Continue My Learning as a Developer?
- How Can I Land a Job Developing Software?
- I Still Don't Know What to Do with My Life
- If I Have Other Questions, How Can i Contact You?
- Index