December 2018
Intermediate to advanced
222 pages
6h 6m
English
Content preview from Blockchain Quick Start Guide
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Inheritance, abstract, and interface
Many of the most widely used programming languages (such as C++, Java, Go, and Python, and so on) support object-oriented programming (OOP) and support inheritance, encapsulation, abstraction, and polymorphism. Inheritance enables code reuse and extensibility. Solidity supports multiple inheritance in the form of copying code, which includes polymorphism. Even if a contract inherits from multiple other contracts, only a single contract is created on the blockchain.
In solidity, inheritance is pretty similar to classic oriented-object programming languages. Here are a number of examples, as follows:
pragma solidity ^0.4.24;contract Animal { constructor() public { } function name() public returns (string) ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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