Please am having a lot of difficulties in using float and double is there anyone that can please correct this code

Question

class Formulas{
static float CSA(int x,float pi,int r,int h){
return x*pi*r*h;
}
public static void main(String[]args){
float csa=CSA(2,3.142,4,5);
System.out.println(csa);
}
}

Answer 1

class Formulas{
static float CSA(int x,float pi,int r,int h){
return x*pi*r*h;
}
public static void main(String[]args){
float csa=CSA(2,3.142f,4,5);
/*U can convert int to double , float to double but can't convert double to int or double to float directly*/
System.out.println(csa);
}
}

Answer 2

public class Program
{

static float CSA(int x,double pi,int r,int h){
return x*(float)pi*r*h;}

public static void main(String[]args){

float a = CSA(2,3.142,4,5);

System.out.println(a);

}
}

Answer 3

I cant be certain that my method is the best way to achieve this as precision could be lost due to casting from double to float maby @Gaurav could help with this one 😜

Answer 4

but please I want to ask why is it that the first pi is in double while the others are float can't I just make everything float or is there a rule behind it