Top 4 Java Coding Best Practices You Must Follow In 2022 (Checklist)

Access to Java coding best practices checklist is essential for businesses as it offers a systematic course for developing software applications using the programming language. Discover the best practices and apply them in your software development project by reading this article to the end.

Even after more than 20 years, Java remains one of the most widely used programming languages. It is an essential language for any developer because it is used on millions of computers and servers globally. Many programming challenges Java helps to deal with much ease when compared to other programming languages.

As a Java programmer, you probably would want your applications to be of the highest quality possible and so you need to use Java programming best practices. This guide offers an insight into what could be a comprehensive checklist of java coding practices that must be strictly adhered to when writing software applications with the programming language. Here, we cover essential standards and best practices for writing high-quality Java code.

This checklist will help you identify and fix common development problems. Following these rules will write effective, reliable, and easy-to-maintain Java code.

What Are the Typical Programming Challenges in Java?

Java has its unique programming challenges, just like any other language. You could encounter difficulties even if you follow Java coding best practices. In general, these fall into two categories:

  • Syntax and compile-time errors;
  • Run-time errors.

Syntax and Compile-Time Errors in Java:

If you follow rightly follow the Java syntax, you can avoid errors while coding using Java. Java is a statically typed language, meaning you must declare variables before using them. It can lead to errors if you try to use a variable that has not been declared.

For example, consider the following code:

int num = 10;
String str;

str = “Hello”;
System.out.println(num + str); // Will cause a compile-time error

This code will cause a compile-time error because the str variable has not been initialized. The compiler will not know what data it is supposed to hold, so you’ve run into a java programming challenge.

To fix this, you would need to initialize the str variable:

int num = 10;
String str = “”; // Initialize the str variable
str = “Hello”;
System.out.println(num + str); // Will not cause an error

Run-time Errors in Java:

Run-time errors are errors that occur during the execution of a program.

Such errors can occur when the operation is invalid.

For example, consider the following code:

int num = 10;
int result = num / 0; // Will cause a runtime error

This code will cause a run-time error because you are trying to divide a number by zero. It is not a valid operation and will cause the program to crash.

To fix this, you would need to check for division by zero before operating:

int num = 10;
if (num != 0) { // Check for division by zero
int result = num / 0;
} else {
System.out.println(“Cannot divide by zero!”);

This code will not cause a run-time error because it checks for division by zero before attempting the operation. If the num variable equals zero, it will get an error message instead of dividing by zero.

How to avoid these challenges when coding in Java

Regarding coding in Java, there are certain best practices that all developers should follow to avoid common problems and difficulties. However, as we have seen, there are several problems that Java developers often face when practicing coding. But fortunately, we have options to help you avoid these problems.

By following our Java coding best practices, you will be able to write code that is more reliable, efficient, and easy to maintain. There are several ways to avoid problems and difficulties when creating programs in Java:

  • Use an Integrated Development Environment (IDE)
  • Use a build tool
  • Use a source control system
  • Use unit testing tools

IDEs for Java Development

An IDE is a piece of software that provides all the tools you need to develop applications. It includes a code editor, compiler, and debugger. It can make development faster and easier because you don’t have to switch between different tools.

There are many IDEs available for Java development, such as Eclipse and IntelliJ IDEA. Most IDEs will have similar features, so choosing one that you’re comfortable using is essential.

Build Tools for Java Development

Build tools are used to automate the process of building an application. It includes tasks such as compiling the code and packaging it for deployment. You can also use “build tools” to run tests and perform other operations. Java build tools can thus be crucial for optimizing your software development lifecycle.

Maven is a popular build tool for Java development. You can use it to manage dependencies, run tests, and package applications for deployment. It could be the best practice for programming in Java.

Source Control Systems

A source control system is used to track changes to your codebase. It is essential to keep track of your work and collaborate with others.

Git is a popular source control system often used for Java development. It allows you to keep track of your code changes and revert to previous versions if needed.

Unit Testing Tools

Unit testing tools are used to test the individual components of your application. It helps to ensure that your code is working as expected and can help to find bugs.

JUnit is a popular unit testing tool for Java development. It allows you to write tests and run them automatically. It can save you a lot of time when testing your code.

Wrapping Up

You may well encounter challenges when coding, may it be Java or any other programming language. However, all possible programming challenges Java can easily overcome when you have the above-discussed checklist of Java programming best practices at your disposal.

Remember, the technical capabilities of a programming language are not enough for building successful codes. Checklists mold the coding process and ultimately the subsequent stages in application development. Standardize your software development through such standard practices through our assistance.


How do I brush my Java skills?

There are a few ways to brush your Java skills:

  • Use an IDE: This will help you write and debug your code faster.
  • Use a build tool: This will automate the process of building and deploying your application.
  • Use a source control system: This will allow you to track changes to your codebase and collaborate with others.
  • Use unit testing tools: This will help ensure that your code is working as expected and can help you find bugs.

How fast can one learn Java?

That depends on the person and how much time they are willing to commit to learning. That being said, most people can learn the basics of Java within a few weeks. However, it will take longer to become proficient in Java development.

How do you keep your skills sharp in coding?

You can keep your coding skills sharp in a few different ways:

  • First, it is essential to stay up to date with the latest trends in the industry.
  • Second, it is vital to make time for practice. Even if you are not working on a coding project now, you can keep your skills sharp by working on practice problems and challenges.
  • Finally, it is crucial to stay motivated and curious. Learning new things can be difficult, but it is essential to push yourself and continue to grow as a coder.

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