How to show method parameters hint in Intellij IDEA?

java

intellij-ide

code-completion

parameter-hints

byNikita Barsukov·Jan 14, 2025

For a lightning-fast lookup of method parameters in IntelliJ IDEA, use the Parameter Info pop-up. Invoke it by hitting Ctrl + P (Windows/Linux) or Cmd + P (macOS). Just hover inside a method's brackets and mash the shortcut for real-time suggestions on the arguments, complete with types and names. Head over to Editor | General | Code Completion into your IDE's settings to confirm it's supreme reign.

Yep, it's that easy:

myMethod( // Ctrl-P or Cmd-P here, and voila!

And here's your magical tooltip:

myMethod(String name, int number) // "Look, Mom, I'm coding!"

Pimp your hints

Auto pop-up: The Speed of Light

Sick of your hints slacking off? Head over to Settings | Editor | General | Code Completion and tweak the auto pop-up delay. Adjust it to match the speed of your lightning-fast coding skills.

Keymap: The Road Less Taken

Are the default shortcuts cramping your style? Fret not. IntelliJ loves customization. Swing by Settings | Keymap and handpick your hotkey. Make IntelliJ work for you!

Full Signature: The Whole Enchilada

Dealing with bloated methods? Enable full method signatures at Settings | Editor | General | Code Completion. Because more info never hurt, right?

Third-Party Library Parameters: The Outsiders

Don't forget the cool third-party libs. Include them in your project for a full deck of parameter info. It's like inviting all friends to your coding party - nobody wants half-baked code!

The power of Parameter Info

Fine-tuning hints

Parameter info abandoning you mid-coding? Adjust your hint's 'Hide' condition at Settings | Editor | General | Code Completion. Overloaded methods? No worries, IntelliJ got your back, showing the relevant parameters like a boss.

Builder and Stream hints

With chained methods, IntelliJ throws hints for each link in your coding concatenation. Just place your cursor after each dot ( and hit Ctrl + P or Cmd + P. It's like turning coding into a breadcrumb trail hunt!