Switch Statement

If we have a lot of conditions it’s quite difficult to combine all of them using only if and else statements. For this reason, in C++ you can use the switch statement to define as many cases as you want. Use the following syntax:


python

We are evaluating here expression using switch statement. If expression is equal to one of the possible cases (a or b), we execute code in the correspending block. The keyword break at the end of case blocks means that when code in this block is executed we go out of the switch block.

You can use as many cases as you want.

Let’s take a look at the example:


              123456789
            
int weekendDay = 1;
switch (weekendDay) {
&nbsp;&nbsp;&nbsp;&nbsp;case 1:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout << "It's Saturday";
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;
&nbsp;&nbsp;&nbsp;&nbsp;case 2:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout << "It's Sunday";
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;
}

The code above prints the day of the weekend by its number. If it’s the first day (1) the code prints "It's Saturday", if it’s the second day - "It's Sunday".

The keyword break is optional and we will describe it more later.

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Зміст курсу

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