C++ if else Statement

In C++, the if else statement is used for conditional execution of code. It is used to check a condition and execute a block of code if the condition is true, and another block of code if the condition is false.

Here is the basic syntax of the if else statement in C++:

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

In the above syntax, condition is an expression that evaluates to a Boolean value (i.e., true or false). If condition is true, the code inside the first block (i.e., the code between the opening curly brace { and the closing curly brace }) will be executed. If condition is false, the code inside the second block (i.e., the code after the else keyword) will be executed.

Here is an example of how to use the if else statement in C++:

#include <iostream>

using namespace std;

int main() {
  int age;

  cout << "Enter your age: ";
  cin >> age;

  if (age >= 18) {
    cout << "You are an adult." << endl;
  } else {
    cout << "You are not an adult." << endl;
  }

  return 0;
}

In this example, the program prompts the user to enter their age, and then uses an if else statement to check whether the age is greater than or equal to 18. If it is, the program prints “You are an adult.” If it is not, the program prints “You are not an adult.”

I hope this helps you understand the if else statement in C++! Let me know if you have any questions.

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