#Find and replace intellij windows#
We reach the settings of IntelliJ in Windows with File – Settings ( Ctrl + Alt + S) and in macOS with IntelliJ IDEA – Preferences ( Cmd + ,). Let's start with configuring IntelliJ IDEA and our project. We'll still call it Alt in this article to keep our shortcuts brief. On macOS computers, the Alt key is typically called Option. If the shortcuts differ between Windows and macOS, as they usually do, then we put the Windows shortcut first and the macOS one second. We can immediately type to narrow our search, use the cursor keys to select a function, and use Enter to execute it.įrom now on, we'll list the keyboard shortcuts in parentheses directly behind the menu item name. This shortcut opens a search window with all menu items and other IDE actions, whether they have a keyboard shortcut or not. If we remember just one IntelliJ IDEA shortcut, then it must be Help – Find Action, which is Ctrl + Shift + A in Windows and Shift + Cmd + A in macOS. We looked at refactoring with IntelliJ IDEA in a previous article, so we don't cover these shortcuts here. Keyboard shortcuts save us time because we can keep our hands on the keyboard and get things done faster. This article looks at the keyboard shortcuts that we need to edit, build, and run Java applications in JetBrains' Java IDE, IntelliJ IDEA. This means that, if we have Obj as the object of a PsiThisExpression or PsiClassObjectAccessExpression type, true should be returned.If you have a few years of experience in the Java ecosystem, and you're interested in sharing that experience with the community (and getting paid for your work of course), have a look at the "Write for Us" page. The first two types can be determined automatically as open object synchronization. PsiReferenceExpression - some expression whose result is used as the synchronization object.It is important to bear in mind that synchronized keyword has two use cases:Īnd as an internal method structure: class ClassA )
#Find and replace intellij code#
In this case, control over synchronization is lost and third-party code may start interfering with it, which could lead to undesirable effects and eventually to deadlocks. The point is that using synchronization for objects that are publicly available is not a great idea. This task requires me to search for open lock objects using the synchronized keyword (see "Item 82 – Document thread safety", from chapter 11, "Concurrency", in Joshua Bloch’s Effective Java). Here is an example of one of my recent tasks, using a revision of a jMonkeyEngine project as the code for demonstration (rather than closed source code). A simple taskīefore we start looking at Structural Search, let’s consider some simple tasks where this search could be useful. In fact, it is this second project that encouraged me to write this post but I’m getting ahead of myself.
In this post, I will present some of these situations and go beyond artificial cases by demonstrating examples of real code from two projects: They can be extremely useful in situations where a whole variety of other functions can’t quite get the job done. Structural search and replace is one such pair of features. Did you know that when you press F2 in IntelliJ IDEA, the cursor will jump to the nearest error in the file? And in the absence of an error – to the nearest warning? It seems that this is a secret only a few people know about.