Do/While Loop

As an alternative to while loop you can use do/while loop. The difference is that the do/while loop will execute the code in the block once before checking if the condition returns true.

Syntax:


python

The example of using do/while loop:


              12345
            
int i = 0;
do {
    cout << i << endl;
    i++;
} while (i < 3);

The first iteration will be firstly executed and i becomes 1. By the third iteration, i becomes 3 and the condition returns false after that, and do/while loop stops.

Pay attention, that the first iteration will be executed even if the condition is always false:


              12345
            
int i = 0;
do {
    cout << i << endl;
    i++;
} while (i < 0);

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Kursinhalt

Introduction to C++

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 Challenge

3. Conditional Statements

Booleans If Expression More Logical Operators Else Expression Else If Expression Short Forms Challenge 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 Challenge