IntelliJ Notes

Tips for IntelliJ users:

• To read from a file rather than the console (especially when debugging on a given input): Edit the run configuration, select *Modify options*, and select *Redirect input*. This will add a new input box, *Redirect input from*. Click on that box and browse to the file that you want to use as input to your code.
• Visit File | Settings | Editor | Code Style and set Visual guides to 90. This will draw a line at the 90th column so you can see when your lines are getting too long.

• To get rid of hard tabs in source files:
  Visit File | Settings | Editor | Code Style | Java, select the Tabs and Indents item at the top, and clear Use tab character.
  • If you have
  • Open your code in NotePad to check if your files contain tabs.
  • If you accidentally add some tab characters, see below for a fix.
  • You might consider moving to a more modern indentation style and setting Tab size to 2, Indent to 2, and Continuation indent to 4.

• If you change the formatting, right click on the src folder and select Reformat Code.

• For a larger font, select File | Settings | Editor | Font and set Size appropriately.

• Instructors sometimes ask students to create a package within a project for each phase. To set that up,
  1. Open the project in Intellij
  2. Right click on the src folder, select New and then Package. Set the package name as directed by the instructor.
  3. In Windows File Explorer (not in Intellij), select all of the files that are in the package. Shift-select is a helpful tool here.
  4. Go back to IntelliJ and select the destination package.
  5. Paste to copy the files in. IntelliJ will rename the links from the old package name to the new name.
  6. If your project controlled with git, be sure to add the new files to the project, commit and push. Have a partner confirm they can build after pulling the changes.