debugger

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 this Debugger Upskill blog, we’ll show you how the examination of variables, along with the Evaluate Expression and Watches features, help you interpret the program’s behavior under various conditions.   Variables IntelliJ IDEA’s debugger offers several ways to view variable values. Yo

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 along your code to analyze it and find problems. We’ll explore how basic and advanced stepping actions help you use the IntelliJ IDEA debugger more efficiently. To start stepping, you must either pause an ongoing debugging session or let the program stop at a breakpoint. When you are ready, you

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 your source code and see how it operates at runtime. This practice can reveal suboptimal routines, inconsistent state problems, synchronization issues, and more: If you are a fan of this approach, then this post is for you. We will be looking at some of the features IntelliJ IDEA provides that can im

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 mental effort. A smarter approach would be to use the tools you have at hand. They can point you in the right direction. In this post, we’ll look at how we can use some of IntelliJ IDEA’s built-in tools to investigate a runtime problem. Note: This post shows how to use features of both the Community a

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. In this article, we will look at how to locate code without much prior knowledge of the project structure and APIs, debug hanging applications, and fix faulty code on the fly. The problem If you want to follow along, start by cloning this repository: https://github.com/flounder4130/debugger-examp

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 step to the line using the Step Over (F8), Step Into (F7), and Run to Cursor (⌥F9) commands. But what if you want to jump to a particular line and set an execution point there, without executing the preceding code? Surprisingly, at the moment you can only do this with the help of workarounds, and

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 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 hidden deep within your code. With a debugger, you also have the power to change and test the behavior of your code without modifying the source, and do a lot of other interesting things too. Let's take our first steps into the world of debugging and see what this tool is capable of. (more&hellip