IntelliJ IDEA Help: Extract Method Refactoring

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Extract Method ��丵�� ڿ�� õ� �ڵ� ��׸�Ʈ�� ޼ҵ�� ٲٴ� �� մϴ�. �� 丵�� ڼ�� Overview�� Ͻʽÿ�, �Ǵ� how to extract a method�� ٷ� ��ʽÿ�.

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Extract Method ��丵�� ȣ�� , IDEA�� ڵ�� õ� �� м��ϰ�, ��õ� �ڵ� ��׸�Ʈ�� Է�� װ�� մϴ�. �� Ȯ�ϰ� �� , �װ�� ޼ҵ带 �� ȯ �� ˴ϴ�. �� 쿡, Extract Method ��丵�� 𸨴ϴ�. �׸�� ޽�� Ÿ��ϴ�. �� Extract Method �۾�� ϴ� �� ణ�� ַ�� ֽ��ϴ�. �� , �� ϴ� Ư�� -Ŭ�� ص� ��ϴ�. �׷� ��ɼ�� ū �پ缺 ��, �� ű�� ޷� �ְ� Extract Method ��丵�� ڵ� ��忡�� ۵�� ʱ� ��, �� ڵ带 ��丵�� ϱ� �� ؾ߸� �մϴ�.

The code fragment to form the method, may not necessarily be a set of statements. It may also be an expression used somewhere in the code. For example, applying the Extract Method to:

�޼ҵ带 ��ϴ� �ڵ� ��׸�Ʈ�� ݵ�� Ʈ�� Ʈ��Ʈ�� ƴ�� 𸨴ϴ�. �� ڵ忡�� ü�� Ǵ� ǥ�� 𸨴ϴ�. �� Extract Method�� ϴ� ��:

results in:

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�� 쿡 ��Ͽ�, Extract Method ��丵�� ణ�� 쿡�� ۵�� Դϴ�. �� , �� Ǻη� �޼ҵ带 ��ϴ� �Ϳ�� ϰ�, �װ�� ʴ� �ڵ� ��׸�Ʈ�� ؼ� �۵�� Դϴ�.

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Overview�κ�� ٰ��մϴ�

1.	�޼ҵ忡 ��Ǵ� �ڵ�� Ͻʽÿ�.
2.	Refactor �޴� ��, Extract Method... Ŭ��Ͻʽÿ�(�Ǵ� Ctrl + Alt + M �� ϴ�). �ٸ� �� Refactor �� Ʈ�ϰ� �� ư�� Ŭ��ϰ� Extract Method...�� Ŭ��ϴ� �� Դϴ�. �� ̾�α״� �� Է� �� Ʈ �Ű��μ� ��Ʈ �Ǵ� �� Ÿ�� Դϴ�. (�� Ű� �� λ簡 File \| Settings \| IDE Settings \| Code Style ��̾�α׿�� Ǿ��ٸ�, �� λ�� ̹� �߰��Ǿ��ϴ�):
3.	Name �ؽ�Ʈ �ʵ忡��, ��ο� �޼ҵ�� ̸�� Ͻʽÿ�.
4.	Parameters ��Ͽ��: ��ϴ� üũ�ڽ�� /��Ͽ� �޼ҵ� �Ű� ��μ� �Ѱ�� Ͻʽÿ�; �� Ű� �� Ұ��ϴٸ�, �ʱⰪ�� Բ� ��ϴ� Ÿ�� 忡�� Դϴ�. �׷�� ̴ϼȶ�� Է��ؾ߸� �� Դϴ�. ��ϴ� �Ű� �� Ŭ��ϰ� ��ο� �̸�� Է��Ͽ� ��ϴ� �Ű� �� ̸�� ٲٽʽÿ�
5.	Visibility �׷쿡��, ��ο� �޼ҵ带 �� ü�� Ͻʽÿ�.
6.	��ο� �޼ҵ忡 �Ѿ�� Ű� �� ϱ� �� Move Up and Move Down�� Ͻʽÿ�.
7.	OK�� Ŭ��Ͻʽÿ�. ��ο� �޼ҵ尡 �� ̰� �ڵ� ��׸�Ʈ�� ޼ҵ� �ݷ� ��ü�� Դϴ�.
8.	�� IDEA�� Ŭ�� Ӱ� �� ޼ҵ带 �θ�� ݰ� �Բ� ��ü�Ǵ� � �ߺ�� ڵ� �� ִ� �� ϸ�, ��ſ�� Process Duplicates ��̾�αװ� ��Ʈ �� Դϴ�. �� No �� , �� ó�� õ� �ڵ�� Ӱ� �� ޼ҵ带 �θ�� ü�� Դϴ�. �� Yes�� ϸ�, �� ߺ�� ̾�α�� Բ� ó�� Դϴ�. �� ڵ带 ��ϴ� �Ϳ� �� ޼ҵ� ��(�� Yes �� ϸ�)�� ǰų�, �Ǵ� �״�� Դϴ�(�� No�� ϸ�).