compute distance light travels

/* Program to compute distance light travels */

class P13
{
public static void main(String args[])
{
int lightspeed;
long days, seconds,distance;

//approximate speed of light in miles per second
lightspeed = 186000;

days = 1000; // specify number of days here

seconds = days * 24 * 60 * 60; // convert to seconds

distance = lightspeed * seconds; // compute distance

System.out.print(" In "+days);
System.out.print(" days light will travel about ");
System.out.print(distance+" miles");
}
}