I promise :DTo start debugging even a little bit, you need to understand what a breakpoint is and be familiar with a few hot keys.Ī breakpoint is a special marker that indicates where you want execution of the application to stop, possibly based on the application state. Now that we've imported the project, we can describe the rest of the process with a living example.

Leave the selected options: Import project from external sources and Maven. Select the debug-presentation project and press OK. Clone this GitHub project and import it through IDEA.Download the Community Edition - that's the version that I will use. In case someone doesn't have this, here's a link where you can download it. IntelliJ IDEA version 2019.3.1 or higher.What you need to start debuggingHere's some free advice: while reading this article, do everything that will be described here - you have everything you need to do follow along. Our objective is to quickly and easily learn how to debug applications using our beloved IntelliJ IDEA development environment. It's just like being able to stop the clock and look at everything from the side. It lets you understand the state of the program at a particular place in the code.

It makes it possible for you to stop execution at designated places and look at how things are progressing. What is Debug mode?Debug mode is for debugging (checking) running code. I want to note right away that in this article we will consider debugging a project using IntelliJ IDEA. That said, you can (and people do) debug using careful logging.īut if you can run your code on a local machine, it's better to use Debug mode. So, we shouldn't fall to pieces and give up if our code doesn't work as we expected.īut what should we do? Well, we could put statements everywhere and then comb through the console output in the hopes of finding an error. Why you need Debug modeLet's immediately clarify something for ourselves: there is no code without bugs. So make yourself comfortable and let's get started! There won't be any frameworks or complicated procedures to publish libraries. This article is intended for people who already have a minimum knowledge of Java Core. Hello everyone in the CodeGym community! Today let's talk about debugging - what is it and how to debug in IntelliJ IDEA.

Download phpstorm debugger