C++ language

Sure! Here is a response without the personal words and sentences:

1. Explanation of a simple "Hello, World!" program in C++:

#include <iostream>

int main() {
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

1. Explanation of variable declaration and initialization in C++:

int num1; // Declaration of an integer variable
num1 = 10; // Initialization of the variable

double pi = 3.14; // Declaring and initializing a double variable

1. Explanation of a basic if-else statement in C++:

int num = 7;

if (num > 5) {
    std::cout << "The number is greater than 5" << std::endl;
} else {
    std::cout << "The number is not greater than 5" << std::endl;
}