How can I permanently enable line numbers in IntelliJ?

Question

How can I permanently enable line numbers in IntelliJ IDEA?

Answer 1

IntelliJ IDEA 15

5 approaches

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Global change

1. File > Settings... > Editor > General > Appearance > Show line numbers

2. Hit Shift twice > write "line numbers" > Show Line Numbers (that one that has the toggle) > change the toggle to ON

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Change for the Active Editor

1. Right click on the left side bar > Show Line Numbers

2. Hit Shift twice > write "line" > Show Line Numbers (the line doesn't have the toggle)

3. Ctrl + Shift + A > write "Show line" > Active Editor: Show Line Numbers > change the toggle to ON