Repository navigation
Code Completion Smartness Improvement #812
Description
Per survey feedback, I'm creating a mega issue for all code completion smartness improvements.
A few things that customers already ask:
Theme: existing commands from other products
- - sout / syso : prints System.out.printIn()
- - soutm: adds the current class and method names
- - soutp: adds method parameter names and values
- - soutv: adds the last variable value
- - Sc -> Scanner
Theme: Provide better revelance when working in specific projects
- - Java AWT packages missing when working on GUI applications
- - Anything else that can improve the relevance
Theme: Code-sensitive code completion check
- - Optimize for different cases of code blocks
- - Don't display ElementScanner when user just types all lower case letters "else"
Theme: Enum case auto-generation
- - Generate switch cases for all enum values
Theme: Array
- - Auto complete code snippet int[n][n] - > new int[n][n]
Theme: Main function
- - When user types public static void main, it shouldn't generate main function signature twice
Theme: Generic arguments
- - More intelligent <> completion (such List<> )
Theme: Signature Help Improvement
- - “When I calling a method, intellisense displays the parameters only ONE time. Basically, it displays the parameters, then as I start putting the values for those parameters, the parameters list disappears”
Activity
nickzhums commentedon Nov 19, 2021
adding Sheng Chen (@jdneo) to be the main PoC for this effort
nickzhums commentedon Dec 1, 2021
Another case:
https://microsoft-my.sharepoint.com/personal/v-laurelgui_microsoft_com/_layouts/15/onedrive.aspx?id=%2Fpersonal%2Fv%2Dlaurelgui%5Fmicrosoft%5Fcom%2FDocuments%2FRecordings%2FE2E%20Journey%20Study%20%2D%20Sanketh%2Emp4&parent=%2Fpersonal%2Fv%2Dlaurelgui%5Fmicrosoft%5Fcom%2FDocuments%2FRecordings
53:00
nickzhums commentedon Feb 23, 2022
Per our discussion, we could also look at IntelliJ Settings -> Editor -> Live Templates Sheng Chen (@jdneo)
github-actions commentedon Oct 31, 2025
Hi nickzhums, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.
Here are some pointers for the various code-completion enhancements you mentioned:
• Existing live templates (sout, syso, soutm, Sc) are tracked in “Optimize auto code completion experience for IntelliJ and Eclipse users”:
– #772
• Preventing duplicate text on completion (e.g. avoiding double
mainsignatures or overwriting existing tokens) is discussed in:– microsoft/vscode-java-debug#1394
This covers “contextual insert” and could help with your “main function” and code-sensitive completion themes.
• Smarter method-argument guessing (filling with parameter names when no variables exist) lives under eclipse.jdt.ls’s guessMethodArguments feature:
– eclipse-jdtls/eclipse.jdt.ls#2512 (comment)
• For enum-switch-case generation, array-snippet expansions, generic
<>completions, and signature-help persistence, there aren’t direct existing issues—consider opening separate feature requests in the vscode-java-pack or vscode-java repo so they can be individually triaged.Other references with low confidence
• Java debug console debounce causing stale completions (debugger only): microsoft/vscode-java-debug#817 (comment)
The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!