THE SMART TRICK OF THISJAV THAT NOBODY IS DISCUSSING

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。If the area variable which is parameter’s title will not be same as occasion variable then regardless of this is applied or not it denotes the occasion variable.In the above example, we