関連ワード:  when should you use an interface in java    when do we use an interface in java    when should we use functional interface in java    how do you use an interface in java    when should we use abstract class and interface in java    why would you use an interface in java    when do we implement serializable interface in java    how do you implement an interface in java    when would you use an abstract class instead of an interface in java    when would you use an abstract class instead of an interface  
結果 : when should you use an interface in java