/**

In this class, you will define a static method that calculates the average

of the measure value of a set of objects that are Measurable.

*/

public class AveragePersonHeights

{

/**

Calculates the average measure from a collection of Measurable object

@param objects the objects

@return the average measure of objects

*/

public static double average(Measurable[] objects)

{

//-----------Start below here. To do: approximate lines of code = 6

// loop through the array of Measurable objects and add their measure to a total

// compute and return the average measure

// Hint: check to see if the length of the array is > 0 first. If it is == 0, return 0.0

//-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions.

}

public static void main(String[] args)

{

System.out.println("--- TEST 1: Calculate the average in a standard case");

APerson[] people = new APerson[4];

people[0] = new APerson("Larry", 65);

people[1] = new APerson("Susan", 45);

people[2] = new APerson("Joe", -45);

people[3] = new APerson("", 0);

System.out.printf("RESULT: %.2f ", average(people));

System.out.println("EXPECTED: 16.25");

System.out.println(" --- TEST 2: Calculate the average for empty array");

System.out.printf("RESULT: %.2f ", average(new APerson[0]));

System.out.println("EXPECTED: 0.00");

}

}

******************************************************************************************************************************************

/**

Basic person with name and height. You are to complete the following:

- Define the class and make it implement Measurable

- Implement getMeasure to return the height

*/

//-----------Start below here. To do: approximate lines of code = 1

//

// Define the class named APerson and make it implement Measurable

//-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions.

{

private String name;

private int height;

/**

Create person with a given name and height in centimeters.

@param name person's name

@param height person's height in centimeters

*/

public APerson(String name, int height)

{

this.name = name;

this.height = height;

}

//-----------Start below here. To do: approximate lines of code = 2

//

// Add the getMeasure method to return the height. See Measurable for the

// method signature

//-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions.

}

****************************************************************************************************************************************

public interface Measurable

{

double getMeasure();

/**

Computes the smallest of the measures of the given objects.

@param objects an array of Measurable objects

@return the object with the smallest measure, null if array is empty

*/

static Measurable smallest(Measurable[] objects)

{

if (objects.length == 0)

{

return null;

}

Measurable min = objects[0];

for (Measurable obj : objects)

{

if (obj.getMeasure() < min.getMeasure())

{

min = obj;

}

}

return min;

}

/**

Computes the largest of the measures of the given objects.

@param objects an array of Measurable objects

@return the object with the largest measure, null if array is empty

*/

static Measurable largest(Measurable[] objects)

{

if (objects.length == 0)

{

return null;

}

Measurable max = objects[0];

for (Measurable obj : objects)

{

if (obj.getMeasure() > max.getMeasure())

{

max = obj;

}

}

return max;

}

}