Hello World! is a basic program used to illustrate the first steps of programming a new language. In the context of smart contracts on the Ethereum platform, Solidity is the most commonly used high-level programming language. Here’s how you would write “Hello World!” in Solidity:
pragma solidity ^0.8.4;
contract HelloWorld {
function greet() public pure returns (string memory) {
return "Hello, World!";
}
}
This code will print “Hello, World!” when called. In Solidity, we define contracts that contain functions which you can interact with via transactions on the Ethereum network. The pragma solidity ^0.8.4; declaration is used to specify the version of Solidity that we’re targeting.
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