メソッドの引数とインスタンス変数の名前が同じ場合、thisを使わないと意図しない動作を引き起こす可能性があります。 Objects have approaches and characteristics(variables) which happen to be derived from lessons, as a way to specify which strategies and variables belong to a specific object the this reserved phrase is applied. We could pass the this key word in the constructor also. It is b... https://freethisjav83580.angelinsblog.com/31431430/the-ultimate-guide-to-this-jav