関連ワード:  how to implement functional interface in java    how to implement functional interface in java using lambda expression    how to implement functional interface in java 8    how to create functional interface in java    how to use functional interface in java    how to create functional interface in java 8    how to use functional interface in java 8    how to create custom functional interface in java    how to use custom functional interface in java    how to create custom functional interface in java 8  
結果 : how to implement functional interface in java