The key difference between a float and double in Java is that a double can represent much larger numbers than a float. Both data types represent numbers with decimals, but a float is 32 bits in size ...

To use Java printf to format double and float values with decimal place precision ... But with this simple method built right into the Java API, you can make floating point data easy to read and easy ...

As I discussed in that post, using the BigDecimal(double) constructor rarely does what one would expect when passed a float or double. For a double, the Java developer is typically better off ...