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Editorial Team
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Asked: 2026-05-24T03:11:16+00:00

Suppose I have a Java method: void method(int a, int b) {} and lots

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Suppose I have a Java method:

void method(int a, int b) {}

and lots of places where it is called:

method(10, 12);
method(33, 44); 
...

How would you automatically refactor arguments replacing to achieve the following result?:

void method(int b, int a) {}
method(12, 10);
method(44, 33); 
...

Note: I am looking for a generic solution handling all cases of methods and arguments and prefer using Eclipse tooling.

Edit: Is there a way to do it programmatically for a set methods matching given criteria from various classes?

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1 Answer

  1. Editorial Team

    Right-click the method (in the source code editor, the outline view or any other view) and select Refactor -> Change Method Signature.

    This will pop up a dialog where you can change a lot of options about the method. Changing the order of the arguments will also change the invocations of that method (use preview to verify this).

    http://fhc.quickmediasolutions.com/image/1635916007.png

    Note that the changes in the invocation only works when you’ve got the source code of the class doing the invocation checked out and it references the source you’re manipulating.

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