関連ワード:  explain the use of abstract class in java    what is the use of abstract class in java with example    what is the purpose of abstract class in java    what is the purpose of abstract class in java 8    what is the use of abstract class constructor in java    what is the main use of abstract class in java    what is the practical use of abstract class in java    what is the use of abstract class and interface in java    what is the use of abstract class and methods in java    what is the use of abstract class without abstract method in java  
結果 : explain the use of abstract class in java