The Odometer class that resembles Odometer object that co

/*********************************
* The Odometer class that resembles Odometer
* object that contains mileage. Set maximum
* mileage is 999999999
***********************************/

//Odometer.java

public class Odometer
{

//Set maximum mileage is 9999999
private int MAX_MILEAGE-999999;
private int mileage;
//constructor to set mileage to zero
public Odometer()
{
mileage=0;
}
//Returns milegae
public int getMileage()
{
return mileage;
}
/*increment the mileage by one if mileage is less thzn 99999*/
public void increment()
{
if(mileage)
{
mileage++;
}
}
/* Decrement the mileage by one if mileage is greater than zero */
public void decrement()
{
if (mileage>0)
mileage--;
}
}
  
-----------------------------------------------------------------

/********************************
* The class FuelGauge that resembles the FuelGauge
* object that contains fuel tank.The tank capacity
* is 15 gallons. The increment the fuel*
*******************************/
package fuelgauge;

//FuelGauage.java
public class FuelGauge
{

//Set max number of gallons as 15
private final int MAX_GALLONS=15;
private final int fuel;
//Contuctor to set fuel
public FuelGauge(int fuel)
{
this.fuel=fuel;
}
//Returns gallons
public int getGallons()
{
return fuel;
}
/*increment the fuel by one of fuel is less than number of gallons*/
public void increment()
{
if(fuel<=MAX_GALLONS)
fuel++;
}
//Decrement the fuel by one
public void decrement()
{
if(fuel>0)
fuel--;
}
}

------------------------------------------------------------------------

//CarSimulation.java
public class CarSimulation
{
public static void main(String[]args)
{
// Assume car fuel tank has of 10 gallons
int FUEL=10;
//Create an instance of FuelGauge with FUEL=10
FuelGauge fuel= new FuelGauge(FUEL);
// Create an instance of Odometer
Odometer odometer = new Odometer();
//Set a boolean variable to false
boolean runOutFuel=false;
System.out.println(\"Fuel:\"+FUEL);
/*Run the while loop until boolean varible
run Out fuel to true
*/
while(!runOutFuel)
{
//Call increment method
odometer.increment();
/*Call getMileage that decrements the fuel
for every 24 miles
*/
if (odometer.getMileage()%24==0)
fuel.decrement();
//Check if number of gallons are zero
if (fuel.getGallon()==0)
{
//Set boolean variable runOutFuel to true
runOutFuel= true;
//print milleage
System.out.println(\"Milage:\"+odometer.getMileage());
//print gallons
System.out.println(\"Fuel level#\"+fuel.getGallons()+\"of gallons\");
}
else
{
System.out.println(\"Milage:\"+odometer.getMileage());
System.out.println(\"Fuel level:#\"+fuel.getGallons()+\"of gallons\");
}
}
System.out.println(\"Car run out of fuel\");
System.out.println(\"Car travelled\"+odometer.getMileage()+\"mile\");
}
}
  
I have a problem with this code

Solution

few changes made to work your code

1)private int MAX_MILEAGE-999999; replace - with =

2)if(mileage) to if(this.mileage)

3)if (mileage>0) to if (this.mileage>0)

4)private final int fuel; remove final as final variables cannot be modified

5)if (fuel.getGallon()==0) to if (fuel.getGallons()==0)

and comment unwanted code

/*********************************

* The Odometer class that resembles Odometer

* object that contains mileage. Set maximum

* mileage is 999999999

***********************************/

//Odometer.java

class Odometer

{

//Set maximum mileage is 9999999

private int MAX_MILEAGE=999999;

private int mileage;

//constructor to set mileage to zero

public Odometer()

{

mileage=0;

}

//Returns milegae

public int getMileage()

{

return mileage;

}

/*increment the mileage by one if mileage is less thzn 99999*/

public void increment()

{

if(this.mileage<MAX_MILEAGE)

{

mileage++;

}

}

/* Decrement the mileage by one if mileage is greater than zero */

public void decrement()

{

if (this.mileage>0)

mileage--;

}

}

  

// -----------------------------------------------------------------

/********************************

* The class FuelGauge that resembles the FuelGauge

* object that contains fuel tank.The tank capacity

* is 15 gallons. The increment the fuel*

*******************************/

//package fuelgauge;

//FuelGauage.java

class FuelGauge

{

//Set max number of gallons as 15

private final int MAX_GALLONS=15;

private int fuel;

//Contuctor to set fuel

public FuelGauge(int fuel)

{

this.fuel=fuel;

}

//Returns gallons

public int getGallons()

{

   return fuel;

}

/*increment the fuel by one of fuel is less than number of gallons*/

public void increment()

{

if(fuel<=MAX_GALLONS)

fuel++;

}

//Decrement the fuel by one

public void decrement()

{

if(fuel>0)

fuel--;

}

}

//------------------------------------------------------------------------

//CarSimulation.java

public class CarSimulation

{

public static void main(String[]args)

{

// Assume car fuel tank has of 10 gallons

int FUEL=10;

//Create an instance of FuelGauge with FUEL=10

FuelGauge fuel= new FuelGauge(FUEL);

// Create an instance of Odometer

Odometer odometer = new Odometer();

//Set a boolean variable to false

boolean runOutFuel=false;

System.out.println(\"Fuel:\"+FUEL);

/*Run the while loop until boolean varible

run Out fuel to true

*/

while(!runOutFuel)

{

//Call increment method

odometer.increment();

/*Call getMileage that decrements the fuel

for every 24 miles

*/

if (odometer.getMileage()%24==0)

fuel.decrement();

//Check if number of gallons are zero

if (fuel.getGallons()==0)

{

//Set boolean variable runOutFuel to true

runOutFuel= true;

//print milleage

System.out.println(\"Milage:\"+odometer.getMileage());

//print gallons

System.out.println(\"Fuel level#\"+fuel.getGallons()+\"of gallons\");

}

else

{

System.out.println(\"Milage:\"+odometer.getMileage());

System.out.println(\"Fuel level:#\"+fuel.getGallons()+\"of gallons\");

}

}

System.out.println(\"Car run out of fuel\");

System.out.println(\"Car travelled\"+odometer.getMileage()+\"mile\");

}

}