関連ワード:  what is default data type in java    what is the default data type in javascript    what is the default variable type in javascript    what is default value of int data type in java    what is default value in long data type in java    what is default value of char data type in java    what is the default value of data type in java    what is the default value of boolean data type in java    what is the default value of byte data type in java    what is the default value of float data type in java