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Content in IntelliJ IDEA is a group of files that contain your source code, build scripts, unit tests, and documentation. These files are usually organized in a hierarchy. The top-level folder is called a content root.
Modules normally have one content root. You can add more content roots. For example, this might be useful if pieces of your code are stored in different locations on your computer.
At the same time, modules can exist without content roots. In this case, you can use them as a collection of dependencies for other modules.
The content root directory in IntelliJ IDEA is marked with the icon.
Folder categories
Folders within content roots can be assigned to several categories.
- Sources RootThis folder contains production code that should be compiled.IntelliJ IDEA compiles the code within the Sources Root. That is why, do not place configuration files (the .idea folder or its content and the .iml file) to this folder. For more information about different types of settings, refer ro Project, module, and global settings.
- Generated Sources RootThe IDE considers that files in the Generated Sources root folder are generated automatically rather than written manually, and can be regenerated.
- Test Sources RootThese folders keep code related to testing separately from production code. Compilation results for sources and test sources are normally placed into different folders.
- Generated Test Sources RootThe IDE considers that files in this folder are generated automatically rather than written manually, and can be regenerated.
- Resources Root(Java only) Resource files used in your application: images, configuration XML and properties files, and so on. During the build process, resource files are copied to the output folder as is.Similarly to sources, you can specify that your resources are generated. You can also specify which folder within the output folder your resources should be copied to.
- Test Resources Root Z sports bar kenosha.These folders are for resource files associated with your test sources.
- ExcludedFiles in excluded folders are ignored by code completion, navigation and inspection. That is why, when you exclude a folder that you don't need at the moment, you can increase the IDE performance. Normally, compilation output folders are marked as excluded.Apart from excluding the entire folders, you can also exclude specific files.
Add a new content root
![3 roots development project 3 roots development project](/uploads/1/3/7/6/137604066/440968235.jpg)
- From the main menu, select File | Project StructureCtrl+Alt+Shift+S and click Project Settings | Modules.
- Select the necessary module and then open the Sources tab in the right-hand part of the dialog.
- Click Add Content Root and specify the folder that you want to add as a new content root.
To remove a content root, click . IntelliJ IDEA marks the selected root as a regular folder; the folder itself and its contents won't be deleted.
Configure folder categories
- Right-click a folder in the Project tool window.
- Select Mark Directory as from the context menu.
- Select the necessary category.
This way, you can assign categories to sub-folders as well.
To restore the previous category of a folder, right-click this folder again, select Mark Directory as, and then select Unmark as <folder category>. For excluded folders, select Cancel Exclusion.
You can also configure folder categories in Project Structure | Modules | Sources.
Exclude files
Java files and binaries cannot be excluded.
If you don't need specific files, but you don't want to completely remove them, you can temporarily exclude these files from the project. Excluded files are ignored by code completion, navigation, and inspections.
To exclude a file, you need to mark it as a plain text file. You can always return excluded files to their original state.
- Right-click the necessary file in the directory tree of the Project tool window.
- Select Mark as Plain Text from the menu.
Plain text files are marked with the icon in the directory tree.
To revert the changes, right-click the file and select Mark as <file type> from the menu.
Exclude files and folders by name patterns
In some cases, excluding files or folders one by one is not convenient. For example, this may be inconvenient if your source code files and files that are generated automatically (by a compiler, for instance) are placed in the same directories, and you want to exclude the generated files only. In this case, you can configure one or several name patterns for a specific content root.
If a folder or a filename located inside the selected content root matches one of the patterns, it will be marked as excluded. Objects outside the selected content root won't be affected.
All files within excluded folders will be excluded as well.
- From the main menu, select File | Project Structure, or press Ctrl+Alt+Shift+S.
- If there're several content roots in this module, select the one that you want to exclude files or folders from.
- In the Exclude files field located at the bottom of the dialog, enter a pattern. For example, enter
*.aj
to exclude AspectJ files.You can configure multiple patterns and separate them with the;
(semicolon) symbol.
Assign a package prefix to Java sources
In Java, you can assign a package prefix to a folder instead of configuring a folder structure manually. A package prefix can be assigned to source folders, generated source folders, test source folders and generated test source folders.
- From the main menu, select File | Project StructureCtrl+Alt+Shift+S and click Modules.
- Select the necessary module and open the Sources tab.
- In the right-hand pane, click next to Source Folders or Test Source Folders.
- Specify the package prefix and click OK.
Change the output path for resources
3 Roots Development Project
When you're building a project, the resources are copied into the compilation output folder by default. You can specify a different directory within the output folder to place resources.
This information is valid for projects that are built with the native IntelliJ IDEA builder. If you're using a build tool, such as Maven or Gradle, make all changes using the build file.
- From the main menu, select File | Project StructureCtrl+Alt+Shift+S and click Modules.
- Select the necessary module and open the Sources tab.
- In the right-hand pane, under Resource Folders or Test Resource Folders, click to the right of the necessary folder (folder path).
- Specify the path relative to the output folder root, and click OK.
Due Dates
- Thursday, March 29, at 6:00 PM
- Pseudocode outline for bisection method
- Monday, April 2, at noon
- The finished Scilab code and analysis
Your job in this project: write a set of routines for finding the root of a function,and compare them in action.
You may not use Scilab's built-in functions forfinding roots -- instead, please implement twodifferent algorithms yourself.You will need to write two functions for this project,one for each of the following methods:
- bisection
- Newton/Raphson
You'll need to create two different Scilab source code files this week:
- root_bisect.sci
- root_newton.sci
Your two functions should look like this:where
Use each of the 2 methods on the following problems.Note that the trigonometric functions take arguments in RADIANS,not degrees.
- find a root of (x^3 - 9x^2 + 70x - 70) on the interval [-30, 70]
- find a root of cos(x/5) on the interval [-10, 10]
- find a root of (x^10) - 2 on the interval [0, 2]
- find a root of 3*sin(x) - e^(-1/x^2) on the interval [1, 5]
Please note that the goal is to find roots which lie within the given intervals. Beware Newton's method: even if you start somewhereinside the interval, the method may pick a next guess which is somewhereoutside the interval..
In each case, make a table which shows
- the root found
- the number of iterations required
- the computational time required
Nota Bene
You should include a limit on the maximum number of iterationswhich any method can use;try setting a limit of 1,000,000 iterations.If, after that number of iterations, the method doesn'tconverge within the termination criterion,cause the function to call the error routine.
Make sure that you don't divide by zero.
Your functions will also be evaluated on their performancein finding the roots of OTHER functions, not listed above.You might want to do some extra tests yourself.
Bells and Whistles
3 Roots Project
- Implement the 'false position' method. Compare its performance to the bisection method.
- Write a 'driver' function called find_root which takes 4 input arguments:
- start_range
- end_range
- function
- first derivative of function
- Write a 'driver' function called plot_root which uses Scilab graphics to draw successive stages in the determination of a root by either the bisection or Newton's method. Your program should draw one step, then wait for the user to type y before drawing the next step.
This page maintained by Michael Richmond.Last modified March 27, 2007.
3 Roots Project
Copyright © Michael Richmond.This work is licensed under a Creative Commons License.