𝓓𝓻-𝓛𝓲𝓷𝓾𝔁𝓮𝓻 𝓑𝓵𝓸𝓰

A Beginner’s Guide to Running Solidity Programs with Remix IDE

Aung Aung Myo Myint's photo
Aung Aung Myo Myint
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3 min read

Table of contents

If you’re looking to start your journey into smart contract development using Solidity, Remix IDE is an excellent tool to get started. It’s a browser-based Integrated Development Environment (IDE) designed specifically for Solidity, making it easy to write, compile, and deploy your smart contracts without needing extensive setup.

Here’s a step-by-step guide on how to use Remix IDE to run your first Solidity program:

Getting Started with Remix IDE

  1. Accessing Remix IDE

    • Open your browser and search for "Remix IDE" on Google.

    • Click on the first result with the URL https://remix-project.org.

    • You’ll be taken to the Remix IDE homepage, which is clean and easy to navigate.

  2. Opening Remix in Your Browser

    • Instead of downloading or installing, simply click on the "Remix Online IDE" button.

    • Remix IDE will open in your browser, ready for you to start coding.

Navigating the Interface

  • File Explorer Panel: On the left-hand side, you’ll find folders like contracts, scripts, and tests. Focus on the contracts folder where you’ll write your Solidity code.

  • Creating a New File:

    • Select the contracts folder and click the "Create New File" button.

    • Name your file with a .sol extension (e.g., demo.sol).

  • Workspace Management: Remix allows you to create multiple workspaces for organizing different projects.

Writing Your First Smart Contract

  1. Setting Up Your File

    • Every Solidity file requires two key declarations:

      • SPDX-License-Identifier: A license declaration to specify copyright.

      • Pragma Directive: Specifies the Solidity version compatibility, e.g., pragma solidity >=0.7.0 <0.9.0;.

    • Add these lines to the top of your demo.sol file:

        // SPDX-License-Identifier: MIT  
  pragma solidity >=0.7.0 <0.9.0;

  2. Creating the Contract

    • Start by defining a contract:

        contract Demo {  
      string public greeting = "Hello, World!";  
  }

    • This simple contract declares a public string variable greeting initialized to "Hello, World!".

Compiling the Smart Contract

  1. Click on the "Solidity Compiler" icon on the left panel (a “stack of papers” symbol).

  2. Select the compiler version (preferably the latest one).

  3. Click on "Compile demo.sol". A green checkmark indicates successful compilation.

Deploying the Smart Contract

  1. Navigate to the "Deploy & Run Transactions" tab (just below the compiler icon).

  2. Ensure the environment is set to Remix VM (Cancun), which simulates a blockchain in your browser.

  3. Click the "Deploy" button. A successful deployment is indicated by a green tick.

Interacting with the Deployed Contract

  1. Scroll down to the deployed contract section.

  2. You’ll see a button labeled greeting corresponding to the variable in your contract.

  3. Click the button, and it will return "Hello, World!".

In Solidity, there is no print statement or method to display output directly in the console.

Conclusion

Congratulations! You've successfully written, compiled, and deployed your first Solidity smart contract using Remix IDE. This process introduces you to the basics of working with Solidity and Remix IDE.

Happy coding! 🚀

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