The Importance of Code Style for Good Code

The Importance of Code Style

Do you want to make a good impression on those who see your code for the first time? Then you need to pay attention to code style. Like a first impression, code style is the first criterion by which other developers judge your code. Consistent style gives the reader a professional and trustworthy image.

Code Style Guide

Formatting: Indentation

In many programming languages, the number of spaces for indentation does not affect the syntax. However, inconsistent indentation makes the code hard to read.

public class Main {
  public static void main(String[] args) {
    System.out.println("Hello World");
  }
}

public class Main {
    public static void main(String[] args) {
        System.out.println("Hello World");
    }
}

The two codes above use 2-space and 4-space indentation respectively, but they maintain consistency. On the other hand, code with inconsistent indentation, as shown below, is less readable.

public class Main {
    public static void main(String[] args) {
      System.out.println("Hello World");
    }
}

Naming: Avoid Using Underscores

The Google Java Style Guide recommends avoiding the use of underscores. Instead, use Camel Case or Pascal Case.

public class CoinManager {
  private int coinNum = 0;

  public int getCoin() {
    return coinNum;
  }

  public void changeCoin(int delta) {
    coinNum += delta;
    if (coinNum < 0) {
      coinNum = 0;
    }
  }
}

This code follows the typical style of Java and improves readability.

Style Guides for Different Languages

Google Code Style Guides

Google provides style guides for various programming languages. Following these guides helps you write cleaner and more consistent code.

• Google C++ Style Guide
• Google Java Style Guide
• Google Python Style Guide
• Google JavaScript Style Guide
• Google TypeScript Style Guide

Why Pay Attention to Code Style

Code That Represents You

When preparing a portfolio, code style is very important. Clean and consistent code style leaves a good impression on other professionals and effectively conveys your abilities.

Code That Enhances Team Efficiency

Maintaining a consistent code style in team projects improves maintainability and scalability. It also makes code reviews easier and facilitates knowledge sharing within the team. Unified code style is the first step towards successful team collaboration.

Applying Code Style in IDEs

Applying Google Java Style Guide in Intellij IDEA

• In Intellij IDEA, click File > Settings.
• Search for google-java-format in Plugins and install it.
• Check the google-java-format Settings option in Settings.
• Enable Reformat code in Tools > Actions on Save.

Applying Google Java Style in Visual Studio Code

• Search for Google Java Format for VS Code in Extensions and install it.
• Set the default formatter in Settings.
• Enable format on save.

Writing Readable Code

• Variable and function names should clearly reflect their roles. Avoid abbreviations and use meaningful names.
• Functions and classes should have clear roles and be written in a way that they are not too long or complex.
• Comments should be used minimally, delivering necessary information clearly.

Conclusion

Code style is a crucial element for making a good first impression on those who read your code. With a little attention, anyone can write clean and consistent code. Make sure your code leaves a good first impression by adhering to code style!