How to automatically convert if-else if statement to switch

Question

Is there a hot key or easy way to replace an if-else if statement with a switch in IntelliJ? I would prefer not to manually convert the if-else if statement to a switch. I

Answer 1

Android studio (intelliJ idea):

Put your cursor on the switch/if statement and:

mac: option + return

win: alt + enter

Answer 2

Update: as @christopheml pointed out in comments on another answer, "Replace If with Switch" seems to have disappeared in IntelliJ 2018.1. A bug has been filed here.

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There are IntelliJ intentions named "Replace If with Switch" and "Replace Switch with If". Check your preferences to see if those options are enabled. If so, I would expect that you would see a quickfix option (Option+Enter on Mac, Alt+Enter on Windows) whenever IntelliJ can automatically handle the conversion from one to the other.

Answer 3

1. Select by double clicking on switch keyword
2. Left Suggestion bulb will appear.
3. Click on suggestion to replace switch with if else.

This works on android studio. It worked in my case

Answer 4

If it doesn't offer the replacement anymore, its probably because disabled feature on "Intentions". (Android studio (IntelliJ))

Solution is simple:

• File > Settings > Editor > Intentions - Search: "replace switch"

or

• File > Settings - Search: "replace switch" > Editor > Intentions

and check the blank checkbox

Answer 5

Checkout settings

• Minimum number of 'if' conditions branches: 3
• Only suggest on null-safe expressions

Answer 6

I just found out that you have to click on the first if, wait for the light bulb icon to appear and then choose Replace if with Switch.