The Complete Solidity Course - Zero to Advanced for Blockchain and Smart Contracts - Visibility - Public Private Interna

The video tutorial explores the concepts of data access in smart contracts, focusing on public, private, and external function access. It demonstrates how changing a function's access level affects its visibility and interaction within a contract. The tutorial highlights the implications of these changes, such as the inability to call private functions from other functions and the restriction of external functions to be called only outside the contract. The video aims to enhance understanding of function scope and accessibility in smart contract development.

What happens to function X when it is switched from public to private?

How does the accessibility of function X affect the data when it is made private?

Explain the significance of changing a function's visibility from private to external.

What error occurs when trying to compile a function declared as external that is called within the same contract?

Discuss the relationship between function visibility and data manipulation in smart contracts.