It is a common requirement to format currencies to two decimal places. /* Code example to print a double to two decimal places with Java printf */ System.out.printf("I love %.2f a lot!", Math.PI); ...

What [Ihsan Kehribar] is working with is another way to get some feedback for what’s going on with your Arduino project ... for AVR programs similar to the printf function used for a lot ...

The Java String printf method can be confusing at first, but it greatly simplifies how you format complex Strings. This is especially true when creating complicated database, NoSQL or Hibernate ...