Inheritance

One of the key components of an object-oriented programming language is inheritance. It’s a technique for enhancing a program’s functionality that separates the code, lessens dependence, and improves the reusability of the current code.

Inheritance between smart contracts is supported by Solidity, allowing several contracts to be inherited into a single contract. A derived contract inherits features from a base contract, which is the contract from which additional contracts derive their features. They are simply known as parent-child contracts.

In Solidity, only internal and public modifiers are capable of inheritance. Some of Solidity’s major highlights include:

• All nonprivate members, including state variables and internal methods, are accessible to derived contracts. However, employing this is restricted.

• Function overriding is permitted as long as the function signature is maintained. The compilation will fail if the output parameters are different.

• The super keyword or the super contract name can invoke a super contract’s function.

• Function calls made with super give precedence to the majority of derived contracts when there are multiple inheritances.

We can use the is keyword to inherit the contract as follows: