ReasonJun

Abstract contracts and interfaces are both powerful features of Solidity that can be used to improve the quality, flexibility, and readability of your code. However, there are some key differences between the two. Abstract contracts Abstract contracts are contracts that cannot be deployed by themselves. They must be inherited by other contracts. Abstract contracts are used to define the common f..

A Solidity interface is a contract that can only contain function declarations. Interfaces are used to define the common functionality of a group of related contracts. Interfaces cannot be inherited, they must be inherited with a contract. You cannot define a fully implemented function. Functions that are not implemented must be specified. The visibility specifier of the function must be externa..

An abstract contract in Solidity is a contract that cannot be deployed by itself. It must be inherited by other contracts. Abstract contracts are used to define the common functionality of a group of related contracts. To create an abstract contract, you use the abstract keyword. For example, the following contract is abstract: abstract contract Student { function major() public pure virtual ret..

The virtual and override keywords in Solidity are used to support function overriding. Function overriding allows you to redefine a function that is inherited from a base contract. This can be useful for customizing the behavior of the function for your specific needs. Virtual functions A function is marked as virtual if it can be overridden by derived contracts. When a function is marked as vir..