pete please fix the currency question at bottome that one doesn't make sense

U2L05 - double

This lesson drills what Trevor teaches in U2L01, U2L02, U2L03, U2L04 and U2L05

So if some of this is confusing, be sure to review any of these 5 lessons, to clarify what is drilled below.

Pre-requirements:

• You have performed each of 2 previous drills to reach a top speed, and then repeated top speed 10x
• Follow this for all drills explainer
• Or this if you haven't even installed the drills yet installation

Errata/Corrections

• You may wish to think "Eclipse" where the lesson uses "JShell" - some similar but not same functionality, though.
• Where Trevor's video suggests BigInteger for currency values, this should have been BigDecimal instead.

Summary of what is Drilled

• Some things from previous lessons
• what is the product of an int divided by an int?
• double is to float as int is to long
• How to handle a float on the right side of an assignment
• How to handle a float on the left side of an assignment
• What happens if you mix left and right side float left right double
• Main point don't let java guess - be explicit both sides

** Not Drilled

• imprecision in last place and how to expect that
• errata BigDecimal not BigIteger for currency