In Java, specifically Floating-point, what is the difference between float and double?

Question

I've seen examples of the terms "float" and "double" being applied to different scenarios and seem to understand that bits and bytes serve some role, but I cannot find a clear explanation of what the difference is. Memory constraints seem like the cause of such differentiation

Answer 1

float has size of 4 bytes with range 3.4e-038 to 3.4e+038 . whereas double has size of 8 bytes with the range 1.7e-308 to 1.7e+308. float allows 6 decimal digits whereas double allows 15 decimal digits.

please go through this link for more info https://www.javatpoint.com/float-vs-double-java .