+ // Compute distance light travels using long variables.
+ class Light {
+ public static void main(String args[] ){
+ int lightspeed;
+ long days;
+ long seconds;
+ long distance;
+
+ // approximate speed of light in miles per second
+ lightspeed = 86000;
+
+ 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.println(distance + " miles .");
+ }
+ }
