“Possible loss of precision” in my Java program

Question

I\'m new to Java. I wrote the following code:

import java.io.*;
import java.lang.*;

public class distravel
{
    public static void main(String args[])
             


        

Answer 1

d=((u*t)+a*Math.pow(t,x))/2F;

should be

d=(float)((u*t)+a*Math.pow(t,x))/2F;

or declare d as double as GrahamS suggested.