Convert anonymous to inner

Last modified: 01 July 2024

Refactor | Convert Anonymous to Inner

The Convert Anonymous to Inner refactoring allows you to convert an anonymous class into a named inner class.

Example

Before

After

public class Class {
    public Interface method() {
        final int i = 0;
        return new Interface() {
            public int publicMethod() {
                return i;
            }
        };
    }
}
public class Class {
    public Interface method() {
        final int i = 0;
        return new MyInterfaceClass(i);
    }

    private static class MyInterfaceClass implements Interface {
        private final int i;

        public MyInterfaceClass(int i) {
            this.i = i;
        }

        public int publicMethod() {
            return i;
        }
    }
}

Convert anonymous to inner dialog

This dialog appears when you invoke the Convert anonymous to inner refactoring.

Item

Description

Class name

Specify here the name for the new inner class.

Make class static

Use this option to make the new class static.

Constructor Parameters

In this area select the variables, that will be used as parameters to the inner class constructor.

Move Up/Down

Use these buttons to reorder parameters.

See also

Refactoring