Write a complete Java program that simulates a calculator that can multiply two numbers. When running, your program should produce the following output $($user input in bold$)$:

Insert the first number:

$10\mathrm{.}2$

Insert the second number:

$-2$

The product is $-20\mathrm{.}4$

Your program's main class should be named Product $.$

$//$ write your code below