Boost Your Coding Efficiency with IntelliJ IDEA 2020.3: AI Completion, Smart Quotes, Calculator, and Postfix Tricks
Discover how IntelliJ IDEA 2020.3 enhances productivity with machine‑learning code suggestions, automatic quoting, an integrated calculator, exception breakpoint hints, and powerful postfix completions that let you write common code patterns faster and with fewer errors.
1. Enable Machine Learning
In IDEA 2020.3 you can activate machine‑learning‑based code completion to get smarter suggestions while coding.
2. Add Quotes and Brackets to Text
You can wrap any text in quotes or square brackets, and IDEA will automatically insert the closing character when you finish the selection.
3. Calculator?
IDEA 2020.3 includes a basic calculator that you can open by pressing Shift twice, allowing quick arithmetic directly in a dialog.
4. Exception Breakpoint Hint
If an unknown exception occurs, the "Console" window can create a breakpoint for you, helping you debug and locate the root cause.
5. Postfix Completion
The PostfixCompletion feature lets you write common code snippets quickly using built‑in or custom postfixes.
Use .var to define a variable.
Use .nn to add a not null condition.
Use .sout to print a variable.
Use .new to instantiate an object.
Use .try to generate a try‑catch block.
Define your own custom postfixes.
Interview yourself: have you mastered these tricks?
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