In this manual we are covering a basic debugging scenario to get you started. A welcome window should appear with an option to Create New Project. While debugging, you are in full control of the things. Once you are ready with the IntelliJ IDEA Community Edition, start IntelliJ IDEA. This is possible by pausing the execution and analyzing the state of the program by thorough examination of variables and how they are changed line by line. The debugger is a powerful tool, which lets you find bugs a lot faster by providing an insight into the internal operations of a program. For example, a subtle logic error, which happened early in the program may not manifest itself until very late, and sometimes it is a real challenge to sort things out. However, there are errors which can be very tricky and take really long to find and fix. Another easy case is when the error can be quickly identified by looking at the stack trace, which helps you figure out where the error occurred. Some of them are easy to catch, like syntax errors, because they are taken care of by the compiler. There are different kinds of errors, which you are going to deal with. What Is Debugging?īroadly, debugging is the process of detecting and correcting errors in a program. Follow these steps to perform this action Start application in debugger Navigate to Run->Evaluate expression. Evaluate expression Evaluate expression allows to evaluate expression on the fly. We can also view the same information in the Debug window. Seems like you have errors in your code, and it’s time to debug it. During debugging, IntelliJ shows value of variable in the Editor window itself. For example, it returns a wrong value or crashes with an exception. Let's imagine you have discovered that it functions not the way you expected. Name the new project and change its location if necessary. It provides additional tools and features for web and enterprise development. IntelliJ IDEA Ultimate is commercial, distributed with a 30-day trial period. It provides all the basic features for JVM and Android development. In the panel on the left, select New Project. IntelliJ IDEA is available in the following editions: Community Edition is free and open-source, licensed under Apache 2.0. In IntelliJ IDEA, select File New Project. To get started, first download and install the latest version of IntelliJ IDEA. You have created and run your Java application. This tutorial demonstrates how to use IntelliJ IDEA for creating a console application. Tutorial: Debug your first Java application
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