Shortcut Keys For Mac To Debug Java Application

Overview In this tutorial, we will show some additional useful keyboard shortcuts which will help you be more productive when developing your Scala applications using IntelliJ. Open IntelliJ and our allaboutscala project If you do not have IntelliJ installed or our allaboutscala project, please follow the. Inspect expression type The following keyboard shortcut will allow you to inspect the type for a given expression: Keyboard Shortcut Windows Mac Inspect expression type Alt + = Ctrl + Shift + P As an example, say you wanted to know the type of the args variable which we inherited by extending the App trait in HelloWorldWithArgumentsDebug from. Sure, you could navigate to the definition of the args variable. But when you have multiple functions which are being chained, this constant switching back and forth between editor windows would become a distraction! Instead, place your cursor on the args variable and press Alt + = if you are using Windows or Ctrl + Shift + P if you are on a Mac. You will then see a tooltip which will show you the type of the args variable. In our example, the type is an Array of String.

NOTE: • As we've mentioned in the, Scala is both an Object Oriented and Functional programming language. On the functional side which we will see in upcoming tutorials, chaining functions together may change the return type of your expression. • As a result, this keyboard shortcut is perhaps the one which you will find most useful when writing your Scala code! Compile any modified files The following keyboard shortcut will allow you to compile your Scala application: Keyboard Shortcut Windows Mac Compile any modified files Ctrl + F9 Cmd + F9 This is equivalent to selecting the Make Project from the Build menu: NOTE: • IntelliJ keeps track of any modified files and the above keyboard shortcut will compile only those files that have been modified. • If you would like to compile specific module, package or project, you can select them from the Project panel on the left hand side and then select Build and then Compile.

Ctrl + T Show the inheritance tree of the current Java class or method. Ctrl + O Show all methods of the current class, press Ctrl + O again to show the inherited methods. Shift + Enter Adds a blank line below the current line and moves the cursor to the new line. The difference between a regular.

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You can also use the following keyboard shortcuts: Keyboard Shortcut Windows Mac Compile selected module or package Ctrl + Shift + F9 Cmd + Shift + F9 4. Run your Scala application The following keyboard shortcut will allow you to quickly launch your Scala application in Run mode: Keyboard Shortcut Windows Mac Run Scala Application Shift + F10 Ctrl + R NOTE: • This is equivalent to selecting the Run menu item from the Build menu. Debug your Scala application The following keyboard shortcut will allow you to quickly launch your Scala application in Debug mode: Keyboard Shortcut Windows Mac Debug Scala Application Shift + F9 Ctrl + D NOTE: • This is equivalent to selecting the Debug menu item from the Build menu. 6. Stepping through the debugger The following keyboard shortcuts will help you navigate your way through debugging your Scala applications. Keyboard Shortcut Windows Mac Step over F8 F8 Step into F7 F7 Step out Shift + F8 Shift + F8 Resume F9 Cmd + Alt + R This concludes our tutorial on IntelliJ Keyboard Shortcuts - Compile, Debug, Run and I hope you've found it useful!

Stay in touch via and for upcoming tutorials! Don't forget to like and share this page:). Summary In this article, we went over the following: • How to inspect an expressions's type • How to compile only modified files • How to Run your Scala application • How to Debug your Scala application • How to step through your Scala application in debugging mode.

Tip • A full list of and keyboard shortcut from the JetBrains website. • Cheatsheet of the additional shortcuts we've used in this tutorial. Keyboard Shortcut Windows Mac Additional useful shortcuts Inspect expression type Alt + = Ctrl + Shift + P Compile modified files Ctrl + F9 Cmd + F9 Run Scala application Shift + F10 Ctrl + R Debug Shift + F9 Cmd + D Debugging: Step over F8 F8 Debugging: Step into F7 F7 Debugging: Step out Shift + F8 Shift + F8 Debugging: Resume F9 Cmd + Alt + F Source Code The source code is available on the. What's Next If you have followed the, you should by now feel more comfortable with IntelliJ IDEA. This would be a good place to proceed to where I will provide the basic foundations of the Scala language.