need full code in Java with comments

Modify the SalesCenter application to compensate associates when they have worked more than 40 hour Associates should be paid their hourly wage when 40 or fewer hours are worked. However, associates ear time and a half for hours over 40 . For example, an associate paid $10 per hour will earn $300 for 30 hours work. However, an associate working 42 hours will earn $400+$30, or $430. The overtime pay is calculate as (hours over 40)(1.5 base hourly rate)