関連ワード:  how to make a immutable class in java    how to make a class immutable in java without using final    how to create a immutable class in java    how to make custom immutable class in java    how to make 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 make a class immutable with list in java    how to make any class immutable in java  
結果 : how to make a immutable class in java