So far we managed to get all Java files straight that are created or edited. Just navigate to Java-Editor-Save actions in the Eclipse preferences and select the check boxes Perform the selected actions on save and Format source code: To make sure that all files you edit have automatically the right indentation, you can configure Eclipse to execute the code formatter every time before a Java file is saved. indent with Source-Correct Indentation or.This indentation policy is applied automatically if you If you press the Tab key on your keyboard in the Java editor, it will be replaced by a number of spaces, according to the indentation you have configured. When you choose Spaces only, you should also decide on an Indentation size - this is the number of spaces that will be inserted to signify one level of indentation.I would not recommend to mix tabs and spaces, you should decide for one of them. The Tab policy allows to choose between Tabs only, Spaces only and Mixed.You can use one of the existing profiles (for example the Java Conventions) and click on Edit…: For Java, this is handled by the Java formatter, available in the preferences under Java-Code Style-Formatter. Note that there is a setting in the preferences under General-Editors-Text Editors ( Insert spaces for tabs) but this does not apply to the Java source code editor. Create proper codeįirst of all you should configure which character(s) are inserted when you indent. No matter whether you’re a tab afficionado or a spaces enthusiastic, you should make sure that your indentation of choice is used consistently throughout your project. Whether to indent source code with tabs or spaces is one of the most discussed topics in the world of software programming. By Pöllö (Own work), via Wikimedia Commonsĭid you ever look at a colleague’s Java source code file which contained mixed spaces and tabs for indentation, making the code completely unreadable? Or did you ever try to compare two versions of a Java file where the line endings changed, obfuscating the one line of code that really changed? This post shows a way how to master the white space hell when developing with Eclipse.
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