IntelliJ IDEA

In this blog post, we will look at how to debug Java code using the IntelliJ IDEA debugger. We will look at how to fix a failing test, how to find out where an `Exception` is thrown, and how to find problems with our data. And we will learn some neat tricks about the debugger in the process!  …

In a typical debugging scenario, you would set breakpoints to tell the debugger when to suspend your program. A breakpoint usually corresponds to the moment that marks the starting point for further investigation. Deciding where to set a breakpoint can be challenging. There might be situations wher…

In our previous article, you learned to move through your code with basic and advanced stepping actions. Now that you know how to navigate your code and control its execution step by step, we can look at the tools for analyzing your program’s state and testing scenarios for bug fixes.  In th…

This Debugger Upskill blog post is the first in a series devoted to the IntelliJ IDEA debugger. In the upcoming articles, we’ll describe its core functionality as well as features designed for peculiar use cases. Our topic for this post is stepping, an invaluable procedure that allows you to move…

One of the most common debugging techniques, printf debugging is particularly popular because most people learn it intuitively when debugging their first programs. This type of debugging is also very accessible because you don’t need any special tools for it. You just insert print statements into yo…

We often find ourselves in situations where code is not working properly, and we have no idea where to even begin investigating. Can’t we just stare at the code until the solution eventually comes to us? Sure, but this method probably won’t work without deep knowledge of the project and a lot of men…

There are a lot of debugger tutorials out there that teach you how to set line breakpoints, log values, or evaluate expressions. While this knowledge alone gives you a lot of tools for debugging your application, real-world scenarios may be somewhat trickier and require a more advanced approach. …

The IntelliJ IDEA debugger is very helpful when it comes to improving your code. Not only does it help you to identify inconsistencies, but it also makes navigating to the responsible lines much easier. There are many ways to set a target execution line during debugging. You can use breakpoints, or…

If you’ve ever used System.out.println() to debug your code, this post is a must-read. A debugger is a special tool that you can use to execute your Java code in a strictly controlled environment. It lets you review and analyze the inner state of your application and find and fix bugs that may be h…