Java for Beginners: A Crash Course to Learn Java Programming in 1 Week
Have you ever wanted to learn a programming language? Or do you have great ideas for apps but learning a programming la
150 57 319KB
English Pages 231 Year 2022
Table of contents :
Introduction
Chapter 1: Why Java?
Object-Oriented Programming
Execution in Multiple Operating Systems
Automatic Memory Management
Community Support
Great Application Programming Interfaces
The Documentation Support
Security
Multi-Thread
Key Concepts
Differences Between Classes and Objects
Main () Method
Comment
Class
Compiler
Java Install
On Windows
On Macintosh
Let’s Try It Out
Chapter 2: Variables
Declaring Variables
Displaying Variables
Data Types
Integer Types
Byte
Short
Ints
Long
Floating Point Types
Float
Doubles
Scientific Numbers
Booleans
Char
Non-Primitive Data Types
String
Static Checking
Naming
Type Casting
Manipulating Variables: Operators
Manipulating Variables: Addition and Subtraction
Manipulating Variables: Multiplication and Division
Manipulating Variables: Modulo
Manipulating Variables: Compound Assignment Operators
Manipulating Variables: Order of Operations
Manipulation Variables: Greater Than and Less Than
Manipulating Variables: Equals and Not Equals
Manipulating Variables: Greater/ Less Than or Equal To
Manipulating Variables: .equals() (very similar content to equals() in string methods)
Manipulating Variables: String Concatenation
Manipulating Variables: final Keyword
Types of Variables
Class Variables
Local Variables
Instance Variables
Chapter 3: String Methods
toString() method
length()
concat()
equals() & .compareTo()
indexOf()
charAt()
substring()
toUpperCase() & toLowerCase()
Chapter 4: Arrays
Creating an Array
Empty Arrays
String[] args
ArrayList
Chapter 5: Operators
Recap Methods
Conditional Operators
Conditional—And: &&
Logical Not: !
How Do We Combine Conditional Operators
Chapter 6: Statements
Conditional Statements
The If Statement
The Else Statement
The Else If Statement
The Switch Statements
Chapter 7: Classes
Creating a Class
Creating an Object
Multiple Classes
Syntax
Constructors
Instance Fields
Constructor Parameters
Assigning Values to Instance Fields
Multiple Fields
Methods
Parameters and Arguments
Multiple Parameters
Method Overloading
Java Math
Math.max()
Math.min()
Math.sqrt()
Math.abs()
Math.random()
Java Packages & API
Built-in Packages
User-Defined/Third-Party Packages
Abstract Classes and Methods
Java Enums
Java User Input
Java Dates
Java HashMap
Java HashSet
Java Wrapper Classes
Java Regular Expressions
Chapter 8: Static Methods and Static Variables
Recap Methods
Static Variables
Modifying Static Variables
Writing Your Static Methods
Chapter 9: Inheritance and Polymorphism
Chapter 10: Loops
While Loops
Do/ While Loops
Counter Variables
For Loops
Looping Over ArrayLists and Arrays
For-Each Loops
Chapter 11: Access and Scope
Access
public Keyword
private Keyword
Scope
this Keyword
Chapter 12: Debugging
Syntax Errors
Run-Time Errors
Logic Errors
Debugging Techniques
Print Statement Method
Dividing Your Program
Chapter 13: Java Files
File Management
Create a File
Writing a File
Reading a File
Deleting a File
Chapter 14: FAQ
Conclusion
References
Introduction
Chapter 1: Why Java?
Object-Oriented Programming
Execution in Multiple Operating Systems
Automatic Memory Management
Community Support
Great Application Programming Interfaces
The Documentation Support
Security
Multi-Thread
Key Concepts
Differences Between Classes and Objects
Main () Method
Comment
Class
Compiler
Java Install
On Windows
On Macintosh
Let’s Try It Out
Chapter 2: Variables
Declaring Variables
Displaying Variables
Data Types
Integer Types
Byte
Short
Ints
Long
Floating Point Types
Float
Doubles
Scientific Numbers
Booleans
Char
Non-Primitive Data Types
String
Static Checking
Naming
Type Casting
Manipulating Variables: Operators
Manipulating Variables: Addition and Subtraction
Manipulating Variables: Multiplication and Division
Manipulating Variables: Modulo
Manipulating Variables: Compound Assignment Operators
Manipulating Variables: Order of Operations
Manipulation Variables: Greater Than and Less Than
Manipulating Variables: Equals and Not Equals
Manipulating Variables: Greater/ Less Than or Equal To
Manipulating Variables: .equals() (very similar content to equals() in string methods)
Manipulating Variables: String Concatenation
Manipulating Variables: final Keyword
Types of Variables
Class Variables
Local Variables
Instance Variables
Chapter 3: String Methods
toString() method
length()
concat()
equals() & .compareTo()
indexOf()
charAt()
substring()
toUpperCase() & toLowerCase()
Chapter 4: Arrays
Creating an Array
Empty Arrays
String[] args
ArrayList
Chapter 5: Operators
Recap Methods
Conditional Operators
Conditional—And: &&
Logical Not: !
How Do We Combine Conditional Operators
Chapter 6: Statements
Conditional Statements
The If Statement
The Else Statement
The Else If Statement
The Switch Statements
Chapter 7: Classes
Creating a Class
Creating an Object
Multiple Classes
Syntax
Constructors
Instance Fields
Constructor Parameters
Assigning Values to Instance Fields
Multiple Fields
Methods
Parameters and Arguments
Multiple Parameters
Method Overloading
Java Math
Math.max()
Math.min()
Math.sqrt()
Math.abs()
Math.random()
Java Packages & API
Built-in Packages
User-Defined/Third-Party Packages
Abstract Classes and Methods
Java Enums
Java User Input
Java Dates
Java HashMap
Java HashSet
Java Wrapper Classes
Java Regular Expressions
Chapter 8: Static Methods and Static Variables
Recap Methods
Static Variables
Modifying Static Variables
Writing Your Static Methods
Chapter 9: Inheritance and Polymorphism
Chapter 10: Loops
While Loops
Do/ While Loops
Counter Variables
For Loops
Looping Over ArrayLists and Arrays
For-Each Loops
Chapter 11: Access and Scope
Access
public Keyword
private Keyword
Scope
this Keyword
Chapter 12: Debugging
Syntax Errors
Run-Time Errors
Logic Errors
Debugging Techniques
Print Statement Method
Dividing Your Program
Chapter 13: Java Files
File Management
Create a File
Writing a File
Reading a File
Deleting a File
Chapter 14: FAQ
Conclusion
References
