Why are there so many floats in the Android API?

Question

The default floating point type in Java is the double. If you hard code a constant like 2.5 into your program, Java makes it a double automatically. When you do a

Answer 1

Depending on the CPU there will be no Floating Point Unit (FPU). So it has to emulate the FPU in Software. this is faster for a Float than for a Double. Or if the Device has a FPU it will be probably also be faster with Floats.