Think Java. How to Think Like a Computer Scientist. 2nd Edition - Helion
ISBN: 978-14-920-7245-4
stron: 326, Format: ebook
Data wydania: 2019-11-27
Księgarnia: Helion
Cena książki: 160,65 zł (poprzednio: 186,80 zł)
Oszczędzasz: 14% (-26,15 zł)
Currently used at many colleges, universities, and high schools, this hands-on introduction to computer science is ideal for people with little or no programming experience. The goal of this concise book is not just to teach you Java, but to help you think like a computer scientist. You’ll learn how to program—a useful skill by itself—but you’ll also discover how to use programming as a means to an end.
Authors Allen Downey and Chris Mayfield start with the most basic concepts and gradually move into topics that are more complex, such as recursion and object-oriented programming. Each brief chapter covers the material for one week of a college course and includes exercises to help you practice what you’ve learned.
- Learn one concept at a time: tackle complex topics in a series of small steps with examples
- Understand how to formulate problems, think creatively about solutions, and write programs clearly and accurately
- Determine which development techniques work best for you, and practice the important skill of debugging
- Learn relationships among input and output, decisions and loops, classes and methods, strings and arrays
- Work on exercises involving word games, graphics, puzzles, and playing cards
The updated second edition of Think Java also features new chapters on polymorphism and data processing, as well as content covering changes through Java 12.
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Spis treści
Think Java. How to Think Like a Computer Scientist. 2nd Edition eBook -- spis treści
- Preface
- The Philosophy Behind the Book
- Object-Oriented Programming
- Changes to the Second Edition
- About the Appendixes
- Using the Code Examples
- Conventions Used in This Book
- OReilly Online Learning
- How to Contact Us
- Acknowledgments
- 1. Computer Programming
- What Is a Computer?
- What Is Programming?
- The Hello World Program
- Compiling Java Programs
- Displaying Two Messages
- Formatting Source Code
- Using Escape Sequences
- What Is Computer Science?
- Debugging Programs
- Vocabulary
- Exercises
- 2. Variables and Operators
- Declaring Variables
- Assigning Variables
- Memory Diagrams
- Printing Variables
- Arithmetic Operators
- Floating-Point Numbers
- Rounding Errors
- Operators for Strings
- Compiler Error Messages
- Other Types of Errors
- Vocabulary
- Exercises
- 3. Input and Output
- The System Class
- The Scanner Class
- Language Elements
- Literals and Constants
- Formatting Output
- Reading Error Messages
- Type Cast Operators
- Remainder Operator
- Putting It All Together
- The Scanner Bug
- Vocabulary
- Exercises
- 4. Methods and Testing
- Defining New Methods
- Flow of Execution
- Parameters and Arguments
- Multiple Parameters
- Stack Diagrams
- Math Methods
- Composition
- Return Values
- Incremental Development
- Vocabulary
- Exercises
- 5. Conditionals and Logic
- Relational Operators
- The if-else Statement
- Chaining and Nesting
- The switch Statement
- Logical Operators
- De Morgans Laws
- Boolean Variables
- Boolean Methods
- Validating Input
- Example Program
- Vocabulary
- Exercises
- 6. Loops and Strings
- The while Statement
- Increment and Decrement
- The for Statement
- Nested Loops
- Characters
- Which Loop to Use
- String Iteration
- The indexOf Method
- Substrings
- String Comparison
- String Formatting
- Vocabulary
- Exercises
- 7. Arrays and References
- Creating Arrays
- Accessing Elements
- Displaying Arrays
- Copying Arrays
- Traversing Arrays
- Generating Random Numbers
- Building a Histogram
- The Enhanced for Loop
- Counting Characters
- Vocabulary
- Exercises
- 8. Recursive Methods
- Recursive Void Methods
- Recursive Stack Diagrams
- Value-Returning Methods
- The Leap of Faith
- Counting Up Recursively
- Binary Number System
- Recursive Binary Method
- CodingBat Problems
- Vocabulary
- Exercises
- 9. Immutable Objects
- Primitives Versus Objects
- The null Keyword
- Strings Are Immutable
- Wrapper Classes
- Command-Line Arguments
- Argument Validation
- BigInteger Arithmetic
- Incremental Design
- More Generalization
- Vocabulary
- Exercises
- 10. Mutable Objects
- Point Objects
- Objects as Parameters
- Objects as Return Values
- Rectangles Are Mutable
- Aliasing Revisited
- Java Library Source
- Class Diagrams
- Scope Revisited
- Garbage Collection
- Mutable Versus Immutable
- StringBuilder Objects
- Vocabulary
- Exercises
- 11. Designing Classes
- The Time Class
- Constructors
- Value Constructors
- Getters and Setters
- Displaying Objects
- The toString Method
- The equals Method
- Adding Times
- Vocabulary
- Exercises
- 12. Arrays of Objects
- Card Objects
- Card toString
- Class Variables
- The compareTo Method
- Cards Are Immutable
- Arrays of Cards
- Sequential Search
- Binary Search
- Tracing the Code
- Vocabulary
- Exercises
- 13. Objects of Arrays
- Decks of Cards
- Shuffling Decks
- Selection Sort
- Merge Sort
- Subdecks
- Merging Decks
- Adding Recursion
- Static Context
- Piles of Cards
- Playing War
- Vocabulary
- Exercises
- 14. Extending Classes
- CardCollection
- Inheritance
- Dealing Cards
- The Player Class
- The Eights Class
- Class Relationships
- Vocabulary
- Exercises
- 15. Arrays of Arrays
- Conways Game of Life
- The Cell Class
- Two-Dimensional Arrays
- The GridCanvas Class
- Other Grid Methods
- Starting the Game
- The Simulation Loop
- Exception Handling
- Counting Neighbors
- Updating the Grid
- Vocabulary
- Exercises
- 16. Reusing Classes
- Langtons Ant
- Refactoring
- Abstract Classes
- UML Diagram
- Vocabulary
- Exercises
- 17. Advanced Topics
- Polygon Objects
- Adding Color
- Regular Polygons
- More Constructors
- An Initial Drawing
- Blinking Polygons
- Interfaces
- Event Listeners
- Timers
- Vocabulary
- Exercises
- A. Tools
- Installing DrJava
- DrJava Interactions
- Command-Line Interface
- Command-Line Testing
- Running Checkstyle
- Tracing with a Debugger
- Testing with JUnit
- Vocabulary
- B. Javadoc
- Reading Documentation
- Writing Documentation
- Javadoc Tags
- Example Source File
- Vocabulary
- C. Graphics
- Creating Graphics
- Graphics Methods
- Example Drawing
- Vocabulary
- Exercises
- D. Debugging
- Compile-Time Errors
- The compiler is spewing error messages.
- Im getting a weird compiler message, and it wont go away.
- I cant get my program to compile no matter what I do.
- I did what the compiler told me to do, but it still doesnt work.
- Run-Time Errors
- My program hangs.
- Infinite loop
- Infinite recursion
- Flow of execution
- When I run the program, I get an exception.
- I added so many print statements I get inundated with output.
- My program hangs.
- Logic Errors
- My program doesnt work.
- Ive got a big, hairy expression and it doesnt do what I expect.
- My method doesnt return what I expect.
- My print statement isnt doing anything.
- Im really, really stuck and I need help.
- No, I really need help.
- I found the bug!
- Compile-Time Errors
- Index