Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Java Fundamentals

You're reading from   Java Fundamentals A fast-paced and pragmatic introduction to one of the world's most popular programming languages

Arrow left icon
Product type Paperback
Published in Mar 2019
Publisher
ISBN-13 9781789801736
Length 408 pages
Edition 1st Edition
Languages
Arrow right icon
Authors (5):
Arrow left icon
Miles Obare Miles Obare
Author Profile Icon Miles Obare
Miles Obare
Basheer Ahamed Fazal Basheer Ahamed Fazal
Author Profile Icon Basheer Ahamed Fazal
Basheer Ahamed Fazal
Rogério Theodoro de Brito Rogério Theodoro de Brito
Author Profile Icon Rogério Theodoro de Brito
Rogério Theodoro de Brito
Gazihan Alankus Gazihan Alankus
Author Profile Icon Gazihan Alankus
Gazihan Alankus
Vinicius Isola Vinicius Isola
Author Profile Icon Vinicius Isola
Vinicius Isola
+1 more Show less
Arrow right icon
View More author details
Toc

Table of Contents (12) Chapters Close

Java Fundamentals
Preface
1. Introduction to Java 2. Variables, Data Types, and Operators FREE CHAPTER 3. Control Flow 4. Object-Oriented Programming 5. OOP in Depth 6. Data Structures, Arrays, and Strings 7. The Java Collections Framework and Generics 8. Advanced Data Structures in Java 9. Exception Handling Appendix

Looping Constructs


Looping constructs are used to perform a certain operation a given number of times as long as a condition is being met. They are commonly used to perform a specific operation on the items of a list. An example is when we want to find the summation of all the numbers from 1 to 100. Java supports the following looping constructs:

  • for loops

  • for each loops

  • while loops

  • do while loops

for Loops

The syntax of the for loop is as follows:

for( initialization ; condition ; expression) {
    //statements
}

The initialization statements are executed when the for loop starts executing. It can be more than one expression, all separated by commas. The expressions must all be of the same type:

for( int i  = 0, j = 0; i <= 9; i++)

The condition section of the for loop must evaluate to true or false. If there is no expression, the condition defaults to true.

The expression part is executed after each iteration of the statements, as long as the condition is true. You can have more than one expression...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime