関連ワード:  what is the usage of interface in java    what is the use of interface in java    what is the use of interface in java with example    what is the use of functional interface in java    what is the use of marker interface in java    what is the use of runnable interface in java    what is the use of serializable interface in java    what is the use of cloneable interface in java    what is the use of callable interface in java    what is the use of functional interface in java 8  
結果 : what is the usage of interface in java