This function should be turned on automatically. If not, check the settings in Settings>Editor>General>Code Completion. Basically, Basic Completion, Smart Type Completion, and Autopopup Code Completion need to be turned on.

After saving, enter the variable name (var.) in the code file and a window should pop up to prompt for completion. If not, try Ctrl+Space (the default is this)

Generally it looks like this:

This function can also automatically complete variable names:

Not very few people use it. Now all the staff in our studio have been forced to switch from eclipse to IDEA. It is very easy to use. What do you mean by code prompts? I remember that IntelliJ IDEA has a save power mode. When this is turned on, there will be no code prompts. Personally, I think IntelliJ IDEA's code prompts are very useful. . .

@uestcfei , ah, that’s it. You don't understand what I mean. Doesn't eclipse have sensitive letters such as ".abcdefg" set up so that code prompts will automatically pop up as soon as they are entered without pressing shortcut keys? For example, when I input a little bit, there should be a code prompt, but this software has nothing. I can only press shortcut keys, and the software is still newly installed.

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