The assignment I am doing is almost complete but the while loop doesn't exit.
package lessons;
import java.util.Scanner;
public class Chp4417 {
public void determineMileage()
{
Scanner input = new Scanner(System.in);
int miles, gallons; //read in the inputs.
int counter = 0; // counter
int totalGallons = 0; //calculate total up to this point
double totalAvg = 0;
double average, milesPerGallon;
System.out.println("Enter the gallons used(-1 to end): ");
gallons = input.nextInt();
System.out.print("Enter the miles used: ");
miles = input.nextInt();
average = (double) miles / gallons;
System.out.print("The miles / gallon for this tank was " + average + "\n");
while( gallons != -1)
{
totalGallons = totalGallons + gallons;
counter = counter + 1;
System.out.print("\nEnter the gallons used(-1 to end): ");
gallons = input.nextInt();
System.out.print("Enter the miles used: ");
miles = input.nextInt();
average = (double) miles / gallons;
System.out.print("The miles / gallon for this tank was " + average + "\n");
totalAvg = totalAvg + average;
}
if (counter != 0)
{
milesPerGallon = (double) totalAvg / counter;
System.out.print("The overall miles / gallon was " + milesPerGallon + "\n");
}
}
}
package lessons;
public class Chp4417main {
public static void main(String args[])
{
Chp4417 myChp4 = new Chp4417();
myChp4.determineMileage();
}
}