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Java Fundamentals

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

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Product type Paperback
Published in Mar 2019
Publisher
ISBN-13 9781789801736
Length 408 pages
Edition 1st Edition
Languages
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Authors (5):
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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
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Table of Contents (12) Chapters Close

Java Fundamentals
Preface
1. Introduction to Java FREE CHAPTER 2. Variables, Data Types, and Operators 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

Conditional Statements


Conditional statements are used to control the flow of execution of the Java compiler based on certain conditions. This implies that we are making a choice based on a certain value or the state of a program. The conditional statements that are available in Java are as follows:

  • The if statement

  • The if-else statement

  • The else-if statement

  • The switch statement

The if Statement

The if statement tests a condition, and when the condition is true, the code contained in the if block is executed. If the condition is not true, then the code in the block is skipped and the execution continues from the line after the block.

The syntax for an if statement is as follows:

if (condition) {
//actions to be performed when the condition is true
}

Consider the following example:

int a = 9;
if (a < 10){
System.out.println("a is less than 10");
}

Since the condition a<10 is true, the print statement is executed.

We can check for multiple values in the if condition as well. Consider the following...

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