Make Static
Last modified: 10 August 2022The Make Static refactoring converts an inner class or an instance method to a static one.
For class, this refactoring also automatically corrects all references to the class in the code.
For method, this refactoring also automatically corrects all calls, implementations and overridings of the method.
tip
This refactoring is also available from UML Class diagram.
Select a method or a class that you want to refactor.
On the main or context menu, select Refactor | Make Static.
In the dialog that opens, specify the refactoring options.
For a class, if the class references any outer class fields, IntelliJ IDEA suggests to pass the outer class as a parameter to the inner class constructor.
For a method, if the method references any of the containing class fields, you can pass the whole referenced object as a parameter to the method (Add object as a parameter with name) or pass referenced fields/variables as parameters to the method (Add parameters for fields).
If the method does not contain any references to fields or instance variables, you can specify whether or not you want to replace instance qualifiers with class references.
Make method static examples
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In call hierarchies, if the method callers don't contain any other references to instance members, IntelliJ IDEA suggests that you make those callers static too. In this example, the refactoring is performed on baz(int i)
. All the caller methods are selected for making static too. The appropriate dialog lets you select the caller methods to be made static.
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