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public class CarHwMain public static void main(String args 1/ Construct two new cars and one used car for the simulation Cari
H ALL Define a class na public class Cart publie Car (String name, double eft, double limit) // new car CarName name mpg - ef

please help me add on this java code to run
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Answer #1

Hi, there are certain things to do in this java code:
1) One java file can contain at most 1 public class only so if you have your classes in the same java file then you need to remove the 'public' keyword from class 'CarHW', else you will need to first import that file containing the other class (CarHW) and then use it in your main class(CarHWMain).

2) I have added some new functions like Get and Set Methods and other functions which are needed in this code and i have also added code in your defined functions to work properly as per my understanding of your given code and it is now executable and is giving correct results.

3) You can check the complete code below:-

package abc1;

public class CarHWMain
{
   public static void main(String[] args)
   {
       //Construct two new cars and one used car
       CarHW car1 = new CarHW("My New Mazda", 24.5, 16.0);
       CarHW car2 = new CarHW("My New Ford", 20.5, 15.0);
       CarHW car3 = new CarHW("My Used Caddie", 15.5, 16.5, 5.5, 25127.6);
      
       //Code to completely fill the tanks
       car1.topOfGas();
       car2.topOfGas();
       car3.topOfGas();
      
       // Do Driving
       car1.drive(130.8);
       car3.drive(25.4);
       car1.drive(20);
       car2.drive(155.5);
       car2.addGas(5);
       car3.drive(35);
       car1.drive(120);
       car2.drive(55.2);
      
       // Checks if any car needs more gas and top off if necessary
       if(car1.lowGasCheck())   // Car 1
       {
           car1.topOfGas();
       }
       if(car2.lowGasCheck())   // Car 2
       {
           car2.topOfGas();
       }
       if(car3.lowGasCheck())   // Car 3
       {
           car3.topOfGas();
       }
      
       //prints odometer and gas levels for each car
       System.out.println(car1.getName() + ": " + car1.getLevel() + " gallons; " + car1.getOdometer() + " miles.");
       System.out.println(car2.getName() + ": " + car2.getLevel() + " gallons; " + car2.getOdometer() + " miles.");
       System.out.println(car3.getName() + ": " + car3.getLevel() + " gallons; " + car3.getOdometer() + " miles.");
   }

}

class CarHW
{
   private String carName; //nickname
   private double mpg;    //miles per gallon
   private double gasLevel; // number of gallons of gas in tank
   private double gasLimit; //capacity of gas tank
   private double odometer; // total number of miles driven
  
   public CarHW(String name, double eff, double limit) // new car
   {
       carName = name;
       mpg = eff;
       gasLimit = limit;
       gasLevel = 0.0;
       odometer = 0;
   }
   public CarHW(String name, double eff, double limit, double level, double m) // used car
   {
       carName = name;
       mpg = eff;
       gasLimit = limit;
       gasLevel = level;
       odometer = m;
   }
  
   //Get and Set Methods
  
   public String getName()
   {
       return carName;
   }
  
   public double getLevel()
   {
       return gasLevel;
   }
  
   public double getOdometer()
   {
       return odometer;
   }
  
   // Mutator Methods
  
   public double mileageLimit()   //Returns the number of miles that can be driven with current gas level
   {
       return mpg * getLevel();
   }
  
   public void drive(double miles) // Affects gas level and odometer
   {
       gasLevel = gasLevel - (miles/mpg);
       odometer = odometer + miles;
   }
  
   public boolean lowGasCheck() // returns true if tank is less than 1/8 full
   {
       if(getLevel() < (gasLimit/8))
       {
           return true;
       }
       else
       {
           return false;
       }
   }
  
   public void addGas(double gallons)
   {
       gasLevel = gasLevel + gallons;
   }
  
   public void topOfGas()   // fills gas tank to capacity
   {
      
       addGas(gasLimit - getLevel());
   }
}

// END OF THE CODE

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