Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.学ぶ Challenge: Else Statement | Section
C Conditional Statements
セクション 1. 章 3
single

single

bookChallenge: Else Statement

メニューを表示するにはスワイプしてください

Conditional statements allow you to control the flow of your program by making decisions based on certain conditions. In C, the else statement complements the if statement by specifying an alternative block of code to execute when the if condition is false.

if_else_syntax.c

if_else_syntax.c

copy

              
12345

            
if (condition) {
    // Statements to execute if condition is `true`
} else {
    // Statements to execute if condition is `false`
}

This structure is essential when you want your program to choose between two distinct paths based on a condition.

main.c

main.c

copy

              
12345678910111213

            
#include <stdio.h>

int main() {
    int number = -7;
    
    if (number >= 0) {
        printf("The number is positive.\n");
    } else {
        printf("The number is negative.\n");
    }
    
    return 0;
}

The else clause is always paired with an if statement and provides a clear alternative path for your program to follow when the condition in the if statement is not met. This helps make your decision-making logic more complete, ensuring that one of the two blocks will always be executed.

タスク

スワイプしてコーディングを開始

Write a function named is_adult that takes an integer parameter age.

  • If age is 18 or above, the function should return true.
  • Otherwise, the function should return false.
  • Use an if and else statement to implement the logic.
  • Do not print anything from the function.

解答

Switch to desktop実践的な練習のためにデスクトップに切り替える下記のオプションのいずれかを利用して、現在の場所から続行する
すべて明確でしたか？

どのように改善できますか？

フィードバックありがとうございます！

セクション 1. 章 3
single

single

AIに質問する

expand

AIに質問する

ChatGPT

何でも質問するか、提案された質問の1つを試してチャットを始めてください

some-alt