How does the add() method work in Python sets?

The add() method in Python sets is used to add a new element to the set. If the element is already present in the set, the set remains unchanged, as sets do not allow duplicate elements.

# Example of add() method
fruits = {"apple", "banana"}
fruits.add("cherry")
print(fruits)  # Output: {'apple', 'banana', 'cherry'}

In this example, the add() method adds “cherry” to the fruits set. Since “cherry” was not previously in the set, it is added as a new element.

The add() method is a simple and efficient way to add elements to a set while ensuring that all elements remain unique.