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Learn Java 12 Programming

By : Nick Samoylov

3.7 (6)

Learn Java 12 Programming

3.7 (6)

By: Nick Samoylov

Overview of this book

Java is one of the preferred languages among developers, used in everything right from smartphones, and game consoles to even supercomputers, and its new features simply add to the richness of the language. This book on Java programming begins by helping you learn how to install the Java Development Kit. You will then focus on understanding object-oriented programming (OOP), with exclusive insights into concepts like abstraction, encapsulation, inheritance, and polymorphism, which will help you when programming for real-world apps. Next, you’ll cover fundamental programming structures of Java such as data structures and algorithms that will serve as the building blocks for your apps. You will also delve into core programming topics that will assist you with error handling, debugging, and testing your apps. As you progress, you’ll move on to advanced topics such as Java libraries, database management, and network programming, which will hone your skills in building professional-grade apps. Further on, you’ll understand how to create a graphic user interface using JavaFX and learn to build scalable apps by taking advantage of reactive and functional programming. By the end of this book, you’ll not only be well versed with Java 10, 11, and 12, but also gain a perspective into the future of this language and software development in general.

Preface

Preface

Who this book is for

What this book covers

To get the most out of this book

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Section 1: Overview of Java Programming

Section 1: Overview of Java Programming

Getting Started with Java 12

Getting Started with Java 12

How to install and run Java

How to install and run an IDE

Java primitive types and operators

String types and literals

Identifiers and variables

Java statements

Summary

Quiz

Java Object-Oriented Programming (OOP)

Java Object-Oriented Programming (OOP)

OOP concepts

Class

Interface

Overloading, overriding, and hiding

Final variable, method, and classes

Polymorphism in action

Summary

Quiz

Java Fundamentals

Java Fundamentals

Packages, importing, and access

Java reference types

Reserved and restricted keywords

Usage of the this and super keywords

Converting between primitive types

Converting between primitive and reference types

Summary

Quiz

Section 2: Building Blocks of Java

Section 2: Building Blocks of Java

Exception Handling

Exception Handling

Java exceptions framework

Checked and unchecked exceptions

The try, catch, and finally blocks

The throws statement

The throw statement

The assert statement

Best practices of exceptions handling

Summary

Quiz

Strings, Input/Output, and Files

Strings, Input/Output, and Files

Strings processing

I/O streams

File management

Apache Commons utilities FileUtils and IOUtils

Summary

Quiz

Data Structures, Generics, and Popular Utilities

Data Structures, Generics, and Popular Utilities

List, Set, and Map interfaces

Collections utilities

Arrays utilities

Object utilities

java.time package

Summary

Quiz

Java Standard and External Libraries

Java Standard and External Libraries

Java Class Library

External libraries

Summary

Quiz

Multithreading and Concurrent Processing

Multithreading and Concurrent Processing

Thread versus process

User thread versus daemon

Extending class thread

Implementing interface Runnable

Extending thread vs implementing Runnable

Using pool of threads

Getting results from thread

Parallel vs concurrent processing

Concurrent modification of the same resource

Summary

Quiz

JVM Structure and Garbage Collection

JVM Structure and Garbage Collection

Java application execution

Java processes

JVM structure

Garbage collection

Summary

Quiz

Managing Data in a Database

Managing Data in a Database

Creating a database

Creating a database structure

Connecting to a database

Releasing the connection

CRUD data

Summary

Quiz

Network Programming

Network Programming

Network protocols

UDP-based communication

TCP-based communication

UDP versus TCP protocols

URL-based communication

Using the HTTP 2 Client API

Summary

Quiz

Java GUI Programming

Java GUI Programming

Java GUI technologies

JavaFX fundamentals

Hello with JavaFX

Control elements

Charts

Applying CSS

Using FXML

Embedding HTML

Playing media

Adding effects

Summary

Quiz

Section 3: Advanced Java

Section 3: Advanced Java

Functional Programming

Functional Programming

What is functional programming?

Standard functional interfaces

Lambda expression limitations

Method references

Summary

Quiz

Java Standard Streams

Java Standard Streams

Streams as a source of data and operations

Stream initialization

Operations (methods)

Numeric stream interfaces

Parallel streams

Summary

Quiz

Reactive Programming

Reactive Programming

Asynchronous processing

Non-blocking API

Reactive

Reactive streams

RxJava

Summary

Quiz

Microservices

Microservices

What is a microservice?

The size of a microservice

How microservices talk to each other

The reactive system of microservices

Summary

Quiz

Java Microbenchmark Harness

Java Microbenchmark Harness

What is JMH?

Creating a JMH benchmark

Running the benchmark

JMH benchmark parameters

JMH usage examples

A word of caution

Summary

Quiz

Best Practices for Writing High-Quality Code

Best Practices for Writing High-Quality Code

Java idioms, their implementation, and their usage

Best design practices

Code is written for people

Testing is the shortest path to quality code

Summary

Quiz

Java - Getting New Features

Java - Getting New Features

Java continues to evolve

Panama project

Valhalla project

Amber project

Loom project

Skara project

Summary

Assessments

Assessments

Chapter 1 – Getting Started with Java 12

Chapter 2 – Java Object-Oriented Programming (OOP)

Chapter 3 – Java Fundamentals

Chapter 4 – Exception Handling

Chapter 5 – Strings, Input/Output, and Files

Chapter 6 – Data Structures, Generics, and Popular Utilities

Chapter 7 – Java Standard and External Libraries

Chapter 8 – Multithreading and Concurrent Processing

Chapter 9 – JVM Structure and Garbage Collection

Chapter 10 – Managing Data in a Database

Chapter 11 – Network Programming

Chapter 12 – Java GUI Programming

Chapter 13 – Functional Programming

Chapter 14 – Java Standard Streams

Chapter 15 – Reactive Programming

Chapter 16 – Microservices

Chapter 17 – Java Microbenchmark Harness

Chapter 18 – Best Practices for Writing High-Quality Code

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How to install and run Java

When somebody says "Java," they may mean quite different things:

Java programming language: A high-level programming language that allows an intent (a program) to be expressed in a human-readable format that can be translated in the binary code executable by a computer
Java compiler: A program that can read a text written in the Java programming language and translate it into a bytecode that can be interpreted by Java Virtual Machine (JVM) in the binary code executable by a computer
Java Virtual Machine (JVM): A program that reads a compiled Java program and interprets it into the binary code that is executable by a computer
Java Development Kit (JDK): The collection of programs (tools and utilities), including Java compiler, JVM, and supporting libraries, which allow the compilation and execution of a program written in the Java language...

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