If Statement
The if statement is a foundational building block of control flow in most programming languages. It allows a program to make decisions and execute different blocks of code based on whether a given condition is true or false. The idea behind if statements is simple: If a condition is met, do something, otherwise, don’t.
if.h
1234if (condition) { // Code to be executed if the condition is true }
A condition is a boolean expression that evaluates to either true or false. If it is true, the code within the curly braces { } is executed; otherwise, if the condition is false, the code inside the block is skipped, and the program continues with the next statement following the if block.
main.cpp
123456789101112#include <iostream> int main() { int age = 33; // Declaring and initializing a variable if (age >= 18) // Checking whether the age is greater or equal to 18 { // If so, output the message std::cout << "You are an adult" << std::endl; } }
If you have an if statement with only one statement to be executed when the condition is true, you can omit the curly braces { }.
with_braces.h
without_braces.h
1234if (condition) { statement; }
Swipe to start coding
- Check if a two dimensional square with
x(length) andy(height) can fit into another square with dimensionsx1(length) andy1(height). - Output
Can fitin console if it can.
Løsning
solution.cpp
Takk for tilbakemeldingene dine!
single
Spør AI
Spør AI
Spør om hva du vil, eller prøv ett av de foreslåtte spørsmålene for å starte chatten vår
Awesome!
Completion rate improved to 7.69If Statement
Sveip for å vise menyen
The if statement is a foundational building block of control flow in most programming languages. It allows a program to make decisions and execute different blocks of code based on whether a given condition is true or false. The idea behind if statements is simple: If a condition is met, do something, otherwise, don’t.
if.h
1234if (condition) { // Code to be executed if the condition is true }
A condition is a boolean expression that evaluates to either true or false. If it is true, the code within the curly braces { } is executed; otherwise, if the condition is false, the code inside the block is skipped, and the program continues with the next statement following the if block.
main.cpp
123456789101112#include <iostream> int main() { int age = 33; // Declaring and initializing a variable if (age >= 18) // Checking whether the age is greater or equal to 18 { // If so, output the message std::cout << "You are an adult" << std::endl; } }
If you have an if statement with only one statement to be executed when the condition is true, you can omit the curly braces { }.
with_braces.h
without_braces.h
1234if (condition) { statement; }
Swipe to start coding
- Check if a two dimensional square with
x(length) andy(height) can fit into another square with dimensionsx1(length) andy1(height). - Output
Can fitin console if it can.
Løsning
solution.cpp
Bytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenforTakk for tilbakemeldingene dine!
Awesome!
Completion rate improved to 7.69single
