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Learn Java 12 Programming

You're reading from   Learn Java 12 Programming A step-by-step guide to learning essential concepts in Java SE 10, 11, and 12

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Product type Paperback
Published in Apr 2019
Publisher Packt
ISBN-13 9781789957051
Length 690 pages
Edition 1st Edition
Languages
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Author (1):
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Nick Samoylov Nick Samoylov
Author Profile Icon Nick Samoylov
Nick Samoylov
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Toc

Table of Contents (25) Chapters Close

Preface 1. Section 1: Overview of Java Programming
2. Getting Started with Java 12 FREE CHAPTER 3. Java Object-Oriented Programming (OOP) 4. Java Fundamentals 5. Section 2: Building Blocks of Java
6. Exception Handling 7. Strings, Input/Output, and Files 8. Data Structures, Generics, and Popular Utilities 9. Java Standard and External Libraries 10. Multithreading and Concurrent Processing 11. JVM Structure and Garbage Collection 12. Managing Data in a Database 13. Network Programming 14. Java GUI Programming 15. Section 3: Advanced Java
16. Functional Programming 17. Java Standard Streams 18. Reactive Programming 19. Microservices 20. Java Microbenchmark Harness 21. Best Practices for Writing High-Quality Code 22. Java - Getting New Features 23. Assessments 24. Other Books You May Enjoy

Java statements

A Java statement is a minimal construct that can be executed. It describes an action and ends with a semicolon (;). We have seen many statements already. For example, here are three statements:

float f = 23.42f;
String sf = String.valueOf(f);
System.out.println(sf);

The first line is a declaration statement combined with an assignment statement. The second line is also a declaration statement combined with an assignment statement and method invocation statement. The third line is just a method invocation statement.

Here is the list of Java statement types:

  • An empty statement that consists of only one symbol, ; (semicolon)
  • A class or interface declaration statement (we will talk about this in Chapter 2, Java Object-Oriented Programming (OOP))
  • A local variable declaration statement: int x;
  • A synchronized statement: this is beyond the scope of this book
  • An expression...
You have been reading a chapter from
Learn Java 12 Programming
Published in: Apr 2019
Publisher: Packt
ISBN-13: 9781789957051
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