Assignment #12 and Variables and Names

Code

    /// Name: Ali Kurland
    /// Period: 6
    /// Program Name: Variables and Names
    /// File Name: VariablesandNames.java
    /// Date Finished: 9/11/2015
    
    //In this case, it is not necessary to use 4.0 for space_in_a_car (because it is a double variable and not an int variable). Using just 4 yields the same answer.
    //A floating-point number is a number with a decimal point and any number of digits before and after it.
    
    public class VariablesandNames
    {
        public static void main( String[] args )
        {
            //This line sets up the variables that will be used in the program.
            int cars, drivers, passengers, cars_not_driven, cars_driven;
            double space_in_a_car, carpool_capacity, average_passengers_per_car;
            
            //The line below is a variable assignment that assigns the value 100 to the variable 'cars'. 
            cars = 100;
            //This line assigns the value 4 to the variable 'space_in_a_car'.
            space_in_a_car = 4;
            //This line assigns the value 30 to the variable 'drivers'.
            drivers = 30;
            //This line assigns the value 90 to the variable 'passengers'.
            passengers = 90;
            //This line assigns the operation cars - drivers to the variable 'cars_not_driven'.
            cars_not_driven = cars - drivers;
            //This line assigns the variable 'drivers' to the variable 'cars_driven'.
            cars_driven = drivers;
            //This line assigns the operation cars_driven * space_in_a_car to the variable 'carpool_capacity'.
            carpool_capacity = cars_driven * space_in_a_car;
            //This line assigns the operation 'passengers / cars_driven to the variable 'average_passengers_per_car'.
            average_passengers_per_car = passengers / cars_driven;
    
    
            System.out.println( "There are " + cars + " cars available." );
            System.out.println( "There are only " + drivers + " drivers available." );
            System.out.println( "There will be " + cars_not_driven + " empty cars today." );
            System.out.println( "We can transport " + carpool_capacity + " people today." );
            System.out.println( "We have " + passengers + " to carpool today." );
            System.out.println( "We need to put about " + average_passengers_per_car + " in each car." );
        }
    }
    

Picture of the output