Sure.
Here is the program with a few more blank lines:
import java.io.* ; class Car { . . . . } class MilesPerGallon { public static void main( String[] args ) { Car car1 = new Car( 32456, 32810, 10.6 ); System.out.println( "Miles per gallon of car 1 is " + car1.calculateMPG() ); Car car2 = new Car( _______, __________, _________ ); System.out.println( "Miles per gallon of car 2 is " + ____.calculateMPG() ); } }