Extract field
Last modified: 10 August 2022The Extract Field refactoring lets you declare a new field and initialize it with the selected expression. The original expression is replaced with the usage of the field.
Extract a field in place
Position the caret within a piece of code you want to extract into a field.
Press Ctrl+Alt+F or from the main menu, select Refactor | Extract Field.
Select an expression you want to introduce as a field.
If IntelliJ IDEA detects more than one occurrence in your code, it lets you specify which occurrences to replace.
You can press Ctrl+Alt+F twice to open the Extract Field dialog where you can specify additional details, such as visibility options, or options for initializing your variable.
Example
Let's extract the anotherClass.intValue();
variable into a field. As a result, IntelliJ IDEA changes the selected variable name to number
and declares it as the private int number
field.
Before | After |
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