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# Programming: Classes and objects

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Exercise 1: Give a C++ class declaration called SavingsAccount with the following information:
Operations (Member Functions)
1. Open account (with an initial deposit). This is called to put initial values in dollars and cents.
2. Make a deposit. A function that will add value to dollars and cents
3. Make a withdrawal. A function that will subtract values from dollars and cents.
4. Show current balance. A function that will print dollars and cents.
Data (Member Data)
1. dollars
2. cents
Give the implementation code for all the member functions.NOTE: You must perform normalization on cents. This means that if cents is 100 or more, it must increment dollars by the appropriate amount. Example: if cents is 234, then dollars must be increased by 2 and cents reduced to 34.
Write code that will create an object called bank1. The code will then initially place \$200.50 in the account. The code will deposit \$40.50 and then withdraw \$100.98. It will print out the final value of dollars and cents.
The following output should be produced:
Dollars = 140 cents = 2.
Part 2: Change the program to allow the user to input the initial values, deposit and withdrawal.
Example:
402
78
Would you like to make a deposit? Y or y for yes
y
Please input the dollars to be deposited
35
Please input the cents to be deposited
67
Would you like to make a deposit? Y or y for yes
y
Please input the dollars to be deposited
35
Please input the cents to be deposited67
Would you like to make a deposit? Y or y for yes
n
Would you like to make a withdrawal Y or y for yes
y
Please input the dollars to be withdrawn
28
Please input the cents to be withdrawn
08
Would you like to make a withdrawal Y or y for yes
y
Please input the dollars to be withdrawn
75
Please input the cents to be withdrawn
78
Would you like to make a withdrawal Y or y for yes
n
Dollars = 370 Cents = 26
Problem 2: Replace the initial member function by two constructors. One constructor is the default constructor that sets both dollars and cents to 0. The other constructor has 2 parameters that set dollars and cents to the indicated values. Have the code generate two objects: bank1 (which has its values set during definition by the
user) and bank2 that uses the default constructor. Have the code input deposits and withdrawals for both bank1 and bank2.

https://brainmass.com/computer-science/programming-languages/programming-classes-objects-548955

#### Solution Summary

This Solution is demonstrated in a .cpp file. The classes and objects in programming are determined.

\$2.19

## Java Object Oriented Programming using Classes and Interfaces

A person has a name and a height in centimeters. Implement a dataset to process a collection of Person objects. Display the average height and the name of the tallest person.

Use the following class in your solution:
/**
This class represents a person's name and height
*/
public class Person
{
private String name;
private double height;

/**
Constructs a Person object
@param aName the name of the person
@param aHeight the height of the person
*/
public Person(String aName, double aHeight)
{
name = aName;
height = aHeight;
}

/**
Gets the name of the person
@return name the person's name
*/
public String getName()
{
return name;
}

/**
Gets the height of the person
@return height the person's height
*/
public double getHeight()
{
return height;
}
}

Use the following class as your tester class:
/**
This program tests the measuring of Person objects.
*/
public class PersonTester
{
public static void main(String[] args)
{
. . .

DataSet data = . . .

double avg = . . .
Person max = . . .

System.out.println("Average height: " + avg);
System.out.println("Expected: 172");
System.out.println("Name of tallest person: " + max.getName());
System.out.println("Expected: Joe");
}
}

DO NOT MODIFY THE FOLLOWING:

/**
Computes the average of a set of data values.
*/
public class DataSet
{
private double sum;
private Object maximum;
private int count;
private Measurer measurer;

/**
Constructs an empty data set with a given measurer.
@param aMeasurer the measurer that is used to measure data values
*/
public DataSet(Measurer aMeasurer)
{
sum = 0;
count = 0;
maximum = null;
measurer = aMeasurer;
}

/**
Adds a data value to the data set.
@param x a data value
*/
{
sum = sum + measurer.measure(x);
if (count == 0
|| measurer.measure(maximum) < measurer.measure(x))
maximum = x;
count++;
}

/**
Gets the average of the added data.
@return the average or 0 if no data has been added
*/
public double getAverage()
{
if (count == 0) return 0;
else return sum / count;
}

/**
Gets the largest of the added data.
@return the maximum or 0 if no data has been added
*/
public Object getMaximum()
{
return maximum;
}
}

DO NOT MODIFY THE FOLLOWING
/**
Describes any class whose objects can measure other objects.
*/
public interface Measurer
{
/**
Computes the measure of an object.
@param anObject the object to be measured
@return the measure
*/
double measure(Object anObject);
}

DO NOT MODIFY THE FOLLOWING
/**
This class represents a person's name and height
*/
public class Person
{
private String name;
private double height;

/**
Constructs a Person object
@param aName the name of the person
@param aHeight the height of the person
*/
public Person(String aName, double aHeight)
{
name = aName;
height = aHeight;
}

/**
Gets the name of the person
@return name the person's name
*/
public String getName()
{
return name;
}

/**
Gets the height of the person
@return height the person's height
*/
public double getHeight()
{
return height;
}
}.

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