When we're simply counting and manipulating whole objects, integers are fantastic. However, sometimes we need to deal with numbers in a more mathematical sense, and we need a data type that will allow us to express ideas that are not entirely whole numbers. Floating-point numbers, or floats, are a Java primitive type that allow us to express numbers that have decimal points and fractions. In this section, we'll modify some float and integer variables side by side to see how they are similar and different.
Let's create a new Java project (you know the drill by now) and call it FloatingPointNumbers. Let's start by declaring two variables: one integer (iNumber) and one float (fNumber). As we know, once we've declared these variables, we're free to modify and assign values to them in our Java program later. This time, let me show...
