How does it work?

Question

It's answer is 2 tell me how

#include<iostream.h>

void f(int)
{
cout<<"1";
}

void f(double)
{
cout<<"2";
}

void f(float)
{
cout<<"3";
}

int main()
{
f(1.0);
}

Answer 1

A floating point literal by default is a `double`, except a notation was added to define it as a `float` e.g. 1.0f

The function accepting double parameter is thus the one that be invoked.

Answer 2

It's C++ not java

Answer 3

it true f(1,0)

Answer 4

for which code foating point

Answer 5

no function is at extrem in float expt ot java