Constant

If you have a static variable that never changes and you want that nobody overrides your variable, use the const keyword by declaration. It makes the variable unchangable (constsant).

For example:


python

The variable x will always be 42 and nobody can change it. The following code would cause an error:


python

You should declare variables as constants if you are sure that they will probably never change:


python

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Sezione 2. Capitolo 8

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Contenuti del Corso

Introduction to C++ | Mobile-Friendly

1. Basics

Get Started Output New Lines Comments

2. Variables

Types of Variables Identifiers User Input Strings Simple Math Not Simple Math Increment (Prefix and Postfix)Constant

3. Conditional Statements

Booleans If Expression More Logical Operators Else Expression Else If Expression Short Forms Switch Statement The Keyword Default

4. Loops

While Loop Do/While Loop For Loop Break/Continue Statements

5. Intro to Arrays

Basic Concept of the Array Loops in Arrays Manipulations with Arrays