How to turn on auto-complete suggestions in Idea?

To enable the auto-complete feature in IntelliJ IDEA, you can follow these steps:

1. Open the IntelliJ IDEA software.
2. Click on the “File” option in the menu bar.
3. Choose the “Settings” option from the drop-down menu to open the “Settings” dialog box.
4. Locate the “Editor” option in the panel on the left side of the dialog box and expand it.
5. Under the “Editor” option, choose “General”.
6. Locate the “Code Completion” option in the panel on the right.
7. Make sure that the “Code Completion” option is selected to enable the automatic completion suggestion feature.
8. Personal preferences can be adjusted, such as completing the delay time and displaying detailed information.
9. Click on the “OK” button at the bottom of the dialog box to save the settings and close the dialog.

After completing the above steps, you can enjoy the auto-completion feature of IDEA while writing code.