Float numbers in Java

Question

Could anyone please me why the output of the following programme is not \" different different\"?

public static void main(String[] args)
{

float f1=3.2f;
fl         


        

Answer 1

Because 3.2f is a float value and 3.2 is a double value. Floating point numbers are always slightly inaccurate because binary representation cannot implement them accurately, so comparing them for exact equality is a bad idea. Particularly comparing floats with doubles. Expressions such as 3.2f == 3.2f are usually okay, but even those can fail in some languages, e.g. if they represent numbers in registers more accurately than in memory.