Car Instrument Simulator For this assignment, you will design a set of classes t

Question

Car Instrument Simulator For this assignment, you will design a set of classes that work together to simulate a car's fuel gauge and odometer. The classes you will design arc the following: The FuelGauge Class: This class will simulate a fuel gauge. Its responsibilities are as follows: To know the car's current amount of fuel, in gallons. To report the car's current amount of fuel, in gallons. To be able to increment the amount of fuel by 1 gallon. This simulates putting fuel in the car. (The car can hold a maximum of 15 gallons.) To be able to decrement the amount of fuel by 1 gallon, if the amount of fuel is greater than 0 gallons. This simulates burning fuel as the car runs. The Odometer Class: This class will simulate the car's odometer. Its responsibilities are as follows: To know the car's current mileage. To report the car's current mileage. To be able to increment the current mileage by 1 mile. The maximum mileage the odometer can store is 999, 999 miles. When this amount is exceeded, the odometer resets the current mileage to 0. To be able to work with a FuelGauge object. It should decrease the FuelGauge object's current amount of fuel by 1 gallon for every 24 miles traveled. (The car's fuel economy is 24 miles per gallon.) Demonstrate the classes by creating instances of each. Simulate filling the car up with fuel, and then run a loop that increments the odometer until the car runs out of fuel. During each loop iteration, print the car's current mileage and amount of fuel.

Explanation / Answer

//FuelGauge class
class FuelGauge
{
    private int fuel;
    public static int max_capacity = 15;
  
    public FuelGauge()
    {
        fuel = 0;
    }

    // parameterized constructor
    public FuelGauge(int oil)
    {
        if (oil <= max_capacity)
        {
            fuel = oil;
        }
        else
        {
            fuel = max_capacity;
        }
    }

    // return amount of fuel
    public int getfuel()
    {
        return fuel;
    }

  
    // add fuel till max capacity is reached
    public void addfuel()
    {
        if (fuel < max_capacity)
        {
            fuel++;
        }

        else
        {
            System.out.println("Maximum capacity reached, Burn some fuel ");
        }
    }

   // burn the fuel
    public void burnFuel()
    {
        if (fuel > 0)
        {
            fuel--;
        }

        else
        {
            System.out.println("No fuel left, Add some fuel ");
        }
    }
}

//Odometer class

class Odometer
{
    // maximum mileage
    public int max_mileage = 999999;
    // miles per gallon
    public int fuel_economy = 22;
    private int startmileage;
    private int mileage;

    // FuelGauge object
    private FuelGauge fuelgauge;

    public Odometer(int mlg, FuelGauge fg) {
        startmileage = mlg;
        mileage = mlg;
        fuelgauge = fg;
    }

    public int getMileage()
    {
        return mileage;
    }

    public void addMileage()
    {

        if (mileage < max_mileage)
        {
            mileage++;
        }
        else
        {
            mileage = 0;
        }

        int d = startmileage - mileage;
        if (d % fuel_economy == 0)
        {
            fuelgauge.burnFuel();
        }
    }
}

//Test class
public class Test
{
   public static void main(String[] args)
   {

        FuelGauge f = new FuelGauge();
        Odometer o = new Odometer(0, f);

        for (int i = 0; i < FuelGauge.max_capacity; i++)
        {
            f.addfuel();
        }

        while (f.getfuel() > 0)
        {
            o.addMileage();
            System.out.println("Mileage: " + o.getMileage());
            System.out.println("Fuel: " + f.getfuel() + " gallons");
            System.out.println(" ");
        }
   }
}

/*
output:

Mileage: 1
Fuel: 15 gallons

Mileage: 2
Fuel: 15 gallons

Mileage: 3
Fuel: 15 gallons

Mileage: 4
Fuel: 15 gallons

Mileage: 5
Fuel: 15 gallons

Mileage: 6
Fuel: 15 gallons

Mileage: 7
Fuel: 15 gallons

Mileage: 8
Fuel: 15 gallons

Mileage: 9
Fuel: 15 gallons

Mileage: 10
Fuel: 15 gallons

Mileage: 11
Fuel: 15 gallons

Mileage: 12
Fuel: 15 gallons

Mileage: 13
Fuel: 15 gallons

Mileage: 14
Fuel: 15 gallons

Mileage: 15
Fuel: 15 gallons

Mileage: 16
Fuel: 15 gallons

Mileage: 17
Fuel: 15 gallons

Mileage: 18
Fuel: 15 gallons

Mileage: 19
Fuel: 15 gallons

Mileage: 20
Fuel: 15 gallons

Mileage: 21
Fuel: 15 gallons

Mileage: 22
Fuel: 14 gallons

Mileage: 23
Fuel: 14 gallons

Mileage: 24
Fuel: 14 gallons

Mileage: 25
Fuel: 14 gallons

Mileage: 26
Fuel: 14 gallons

Mileage: 27
Fuel: 14 gallons

Mileage: 28
Fuel: 14 gallons

Mileage: 29
Fuel: 14 gallons

Mileage: 30
Fuel: 14 gallons

Mileage: 31
Fuel: 14 gallons

Mileage: 32
Fuel: 14 gallons

Mileage: 33
Fuel: 14 gallons

Mileage: 34
Fuel: 14 gallons

Mileage: 35
Fuel: 14 gallons

Mileage: 36
Fuel: 14 gallons

Mileage: 37
Fuel: 14 gallons

Mileage: 38
Fuel: 14 gallons

Mileage: 39
Fuel: 14 gallons

Mileage: 40
Fuel: 14 gallons

Mileage: 41
Fuel: 14 gallons

Mileage: 42
Fuel: 14 gallons

Mileage: 43
Fuel: 14 gallons

Mileage: 44
Fuel: 13 gallons

Mileage: 45
Fuel: 13 gallons

Mileage: 46
Fuel: 13 gallons

Mileage: 47
Fuel: 13 gallons

Mileage: 48
Fuel: 13 gallons

Mileage: 49
Fuel: 13 gallons

Mileage: 50
Fuel: 13 gallons

Mileage: 51
Fuel: 13 gallons

Mileage: 52
Fuel: 13 gallons

Mileage: 53
Fuel: 13 gallons

Mileage: 54
Fuel: 13 gallons

Mileage: 55
Fuel: 13 gallons

Mileage: 56
Fuel: 13 gallons

Mileage: 57
Fuel: 13 gallons

Mileage: 58
Fuel: 13 gallons

Mileage: 59
Fuel: 13 gallons

Mileage: 60
Fuel: 13 gallons

Mileage: 61
Fuel: 13 gallons

Mileage: 62
Fuel: 13 gallons

Mileage: 63
Fuel: 13 gallons

Mileage: 64
Fuel: 13 gallons

Mileage: 65
Fuel: 13 gallons

Mileage: 66
Fuel: 12 gallons

Mileage: 67
Fuel: 12 gallons

Mileage: 68
Fuel: 12 gallons

Mileage: 69
Fuel: 12 gallons

Mileage: 70
Fuel: 12 gallons

Mileage: 71
Fuel: 12 gallons

Mileage: 72
Fuel: 12 gallons

Mileage: 73
Fuel: 12 gallons

Mileage: 74
Fuel: 12 gallons

Mileage: 75
Fuel: 12 gallons

Mileage: 76
Fuel: 12 gallons

Mileage: 77
Fuel: 12 gallons

Mileage: 78
Fuel: 12 gallons

Mileage: 79
Fuel: 12 gallons

Mileage: 80
Fuel: 12 gallons

Mileage: 81
Fuel: 12 gallons

Mileage: 82
Fuel: 12 gallons

Mileage: 83
Fuel: 12 gallons

Mileage: 84
Fuel: 12 gallons

Mileage: 85
Fuel: 12 gallons

Mileage: 86
Fuel: 12 gallons

Mileage: 87
Fuel: 12 gallons

Mileage: 88
Fuel: 11 gallons

Mileage: 89
Fuel: 11 gallons

Mileage: 90
Fuel: 11 gallons

Mileage: 91
Fuel: 11 gallons

Mileage: 92
Fuel: 11 gallons

Mileage: 93
Fuel: 11 gallons

Mileage: 94
Fuel: 11 gallons

Mileage: 95
Fuel: 11 gallons

Mileage: 96
Fuel: 11 gallons

Mileage: 97
Fuel: 11 gallons

Mileage: 98
Fuel: 11 gallons

Mileage: 99
Fuel: 11 gallons

Mileage: 100
Fuel: 11 gallons

Mileage: 101
Fuel: 11 gallons

Mileage: 102
Fuel: 11 gallons

Mileage: 103
Fuel: 11 gallons

Mileage: 104
Fuel: 11 gallons

Mileage: 105
Fuel: 11 gallons

Mileage: 106
Fuel: 11 gallons

Mileage: 107
Fuel: 11 gallons

Mileage: 108
Fuel: 11 gallons

Mileage: 109
Fuel: 11 gallons

Mileage: 110
Fuel: 10 gallons

Mileage: 111
Fuel: 10 gallons

Mileage: 112
Fuel: 10 gallons

Mileage: 113
Fuel: 10 gallons

Mileage: 114
Fuel: 10 gallons

Mileage: 115
Fuel: 10 gallons

Mileage: 116
Fuel: 10 gallons

Mileage: 117
Fuel: 10 gallons

Mileage: 118
Fuel: 10 gallons

Mileage: 119
Fuel: 10 gallons

Mileage: 120
Fuel: 10 gallons

Mileage: 121
Fuel: 10 gallons

Mileage: 122
Fuel: 10 gallons

Mileage: 123
Fuel: 10 gallons

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Fuel: 10 gallons

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Fuel: 10 gallons

Mileage: 126
Fuel: 10 gallons

Mileage: 127
Fuel: 10 gallons

Mileage: 128
Fuel: 10 gallons

Mileage: 129
Fuel: 10 gallons

Mileage: 130
Fuel: 10 gallons

Mileage: 131
Fuel: 10 gallons

Mileage: 132
Fuel: 9 gallons

Mileage: 133
Fuel: 9 gallons

Mileage: 134
Fuel: 9 gallons

Mileage: 135
Fuel: 9 gallons

Mileage: 136
Fuel: 9 gallons

Mileage: 137
Fuel: 9 gallons

Mileage: 138
Fuel: 9 gallons

Mileage: 139
Fuel: 9 gallons

Mileage: 140
Fuel: 9 gallons

Mileage: 141
Fuel: 9 gallons

Mileage: 142
Fuel: 9 gallons

Mileage: 143
Fuel: 9 gallons

Mileage: 144
Fuel: 9 gallons

Mileage: 145
Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 9 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

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Fuel: 8 gallons

Mileage: 176
Fuel: 7 gallons

Mileage: 177
Fuel: 7 gallons

Mileage: 178
Fuel: 7 gallons

Mileage: 179
Fuel: 7 gallons

Mileage: 180
Fuel: 7 gallons

Mileage: 181
Fuel: 7 gallons

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Fuel: 7 gallons

Mileage: 183
Fuel: 7 gallons

Mileage: 184
Fuel: 7 gallons

Mileage: 185
Fuel: 7 gallons

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Fuel: 7 gallons

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Fuel: 7 gallons

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Fuel: 7 gallons

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Fuel: 7 gallons

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Fuel: 7 gallons

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Fuel: 7 gallons

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Fuel: 7 gallons

Mileage: 193
Fuel: 7 gallons

Mileage: 194
Fuel: 7 gallons

Mileage: 195
Fuel: 7 gallons

Mileage: 196
Fuel: 7 gallons

Mileage: 197
Fuel: 7 gallons

Mileage: 198
Fuel: 6 gallons

Mileage: 199
Fuel: 6 gallons

Mileage: 200
Fuel: 6 gallons

Mileage: 201
Fuel: 6 gallons

Mileage: 202
Fuel: 6 gallons

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Fuel: 6 gallons

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Fuel: 6 gallons

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Fuel: 6 gallons

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Fuel: 6 gallons

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Fuel: 6 gallons

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Fuel: 6 gallons

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Fuel: 6 gallons

Mileage: 210
Fuel: 6 gallons

Mileage: 211
Fuel: 6 gallons

Mileage: 212
Fuel: 6 gallons

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Fuel: 6 gallons

Mileage: 214
Fuel: 6 gallons

Mileage: 215
Fuel: 6 gallons

Mileage: 216
Fuel: 6 gallons

Mileage: 217
Fuel: 6 gallons

Mileage: 218
Fuel: 6 gallons

Mileage: 219
Fuel: 6 gallons

Mileage: 220
Fuel: 5 gallons

Mileage: 221
Fuel: 5 gallons

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Fuel: 5 gallons

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Fuel: 5 gallons

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Fuel: 5 gallons

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Fuel: 5 gallons

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Fuel: 5 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

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Fuel: 4 gallons

Mileage: 253
Fuel: 4 gallons

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Fuel: 4 gallons

Mileage: 255
Fuel: 4 gallons

Mileage: 256
Fuel: 4 gallons

Mileage: 257
Fuel: 4 gallons

Mileage: 258
Fuel: 4 gallons

Mileage: 259
Fuel: 4 gallons

Mileage: 260
Fuel: 4 gallons

Mileage: 261
Fuel: 4 gallons

Mileage: 262
Fuel: 4 gallons

Mileage: 263
Fuel: 4 gallons

Mileage: 264
Fuel: 3 gallons

Mileage: 265
Fuel: 3 gallons

Mileage: 266
Fuel: 3 gallons

Mileage: 267
Fuel: 3 gallons

Mileage: 268
Fuel: 3 gallons

Mileage: 269
Fuel: 3 gallons

Mileage: 270
Fuel: 3 gallons

Mileage: 271
Fuel: 3 gallons

Mileage: 272
Fuel: 3 gallons

Mileage: 273
Fuel: 3 gallons

Mileage: 274
Fuel: 3 gallons

Mileage: 275
Fuel: 3 gallons

Mileage: 276
Fuel: 3 gallons

Mileage: 277
Fuel: 3 gallons

Mileage: 278
Fuel: 3 gallons

Mileage: 279
Fuel: 3 gallons

Mileage: 280
Fuel: 3 gallons

Mileage: 281
Fuel: 3 gallons

Mileage: 282
Fuel: 3 gallons

Mileage: 283
Fuel: 3 gallons

Mileage: 284
Fuel: 3 gallons

Mileage: 285
Fuel: 3 gallons

Mileage: 286
Fuel: 2 gallons

Mileage: 287
Fuel: 2 gallons

Mileage: 288
Fuel: 2 gallons

Mileage: 289
Fuel: 2 gallons

Mileage: 290
Fuel: 2 gallons

Mileage: 291
Fuel: 2 gallons

Mileage: 292
Fuel: 2 gallons

Mileage: 293
Fuel: 2 gallons

Mileage: 294
Fuel: 2 gallons

Mileage: 295
Fuel: 2 gallons

Mileage: 296
Fuel: 2 gallons

Mileage: 297
Fuel: 2 gallons

Mileage: 298
Fuel: 2 gallons

Mileage: 299
Fuel: 2 gallons

Mileage: 300
Fuel: 2 gallons

Mileage: 301
Fuel: 2 gallons

Mileage: 302
Fuel: 2 gallons

Mileage: 303
Fuel: 2 gallons

Mileage: 304
Fuel: 2 gallons

Mileage: 305
Fuel: 2 gallons

Mileage: 306
Fuel: 2 gallons

Mileage: 307
Fuel: 2 gallons

Mileage: 308
Fuel: 1 gallons

Mileage: 309
Fuel: 1 gallons

Mileage: 310
Fuel: 1 gallons

Mileage: 311
Fuel: 1 gallons

Mileage: 312
Fuel: 1 gallons

Mileage: 313
Fuel: 1 gallons

Mileage: 314
Fuel: 1 gallons

Mileage: 315
Fuel: 1 gallons

Mileage: 316
Fuel: 1 gallons

Mileage: 317
Fuel: 1 gallons

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Fuel: 1 gallons

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Fuel: 1 gallons

Mileage: 320
Fuel: 1 gallons

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Fuel: 1 gallons

Mileage: 322
Fuel: 1 gallons

Mileage: 323
Fuel: 1 gallons

Mileage: 324
Fuel: 1 gallons

Mileage: 325
Fuel: 1 gallons

Mileage: 326
Fuel: 1 gallons

Mileage: 327
Fuel: 1 gallons

Mileage: 328
Fuel: 1 gallons

Mileage: 329
Fuel: 1 gallons

Mileage: 330
Fuel: 0 gallons

*/

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