How do I change language level for all modules in IntelliJ

Question

I have a project with MANY modules. We\'re upgrading to Java7, and I want my editor to reflect this. Now all my modules specifically set the language level to Java6, and there a

Answer 1

In IntelliJ IDEA 14.0, go to File | Project Structure | Modules (Ctrl+Shift+Alt+S).

The list of modules supports multiple selection so

• Ctrl click individual modules
• Shift click range of modules
• Ctrl-A all modules

Select in the drop-down menu Language level and choose manually the level or "Use project language level".

Similarly to change the language level for the project, select project in the ribbon on the left under Project Settings. A drop down menu is available for Project language level. Choose the level needed. This will set the default for all project modules.

Sources

• https://www.jetbrains.com/idea/help/project-general-settings-page.html
• https://www.jetbrains.com/idea/help/modules.html