関連ワード:  what is classes and objects in java    what is classes and objects in javascript    what is class and object in java with example    what is class and object in java oops    what is class and object in java with realtime examples    what is class and object in java program    what is class and object in java definition    what is class and object in java hindi    what is class and object in java in simple words    what is class method and object in java