関連ワード:  how to initialize an arraylist java    how to declare an arraylist java    how to instantiate an arraylist java    how to initialize an array list in java    how to initialize an arraylist in java with values    how to initialize an arraylist in java with a size    how to initialize an empty arraylist java    how to initialize an arraylist in java with elements    how to initialize an arraylist in java in one line    how to initialize an arraylist in java with default values