関連ワード:  how to write a immutable class in java    how to create a immutable class in java    how to make a immutable class in java    how to make a class immutable in java without using final    how to write custom immutable class in java    how to write own immutable class in java    how to create immutable class in java with mutable object    how to create immutable class in java with list object    how to create immutable class in java for date object    how to create an immutable class in java dzone  
結果 : how to write a immutable class in java