🔹 Key OOP Concepts in Solidity
1. Contracts as Classes
In Solidity, each contract is like a class in traditional OOP languages. A contract is a blueprint that defines state variables and functions. When a contract is deployed on the blockchain, it becomes a standalone instance, similar to creating an object from a class.

solidity

// Example contract acting like a class
contract Animal {
    string public species;
    
    function setSpecies(string memory _species) public {
        species = _species;
    }
}