Find the error in each of the following code segments: 1. // Superclass public class Vehicle {  (Member declarations . . .) } // Subclass public class Car expands Vehicle {  (Member declarations . ....

Find the error in each of the following code segments:

1. // Superclass

public class Vehicle

{

 (Member declarations . . .)

}

// Subclass

public class Car expands Vehicle

{

 (Member declarations . . .)

}

 2. // Superclass

public class Vehicle

{

 private double cost;

 (Other methods . . .)

}

// Subclass

public class Car extends Vehicle

{

 public Car(double c)

 {

 cost = c;

 }

}

 3. // Superclass

public class Vehicle

{

 private double cost;

 public Vehicle(double c)

 {

 cost = c;

 }

 (Other methods . . .)

}

// Subclass

public class Car extends Vehicle

{

 private int passengers;

 public Car(int p)

 {

 passengers = c;

 }

 (Other methods . . .)

}

 4. // Superclass

public class Vehicle

{

 public abstract double getMilesPerGallon();

 (Other methods . . .)

}

// Subclass

public class Car extends Vehicle

{

 private int mpg;

 public int getMilesPerGallon();

 {

 return mpg;

 }

 (Other methods . . .)

}