Inthis exercise we will create abasic application that allows aperson to convert

between Jamaican and American currency.

$1.$ Create anew Java project entitledjavaCurrency.

$2.$ Create three packages: com.application.model,

com.application.controller and com.application.view.

$3.$ In the com.application.model package create a class called CurrencyModel.

$4.$ In the CurrencyModel class create two public functions: double

convertJMDToUSD $($This function accepts a double value representing

Jamaican Dollars and converts itto US Dollars and returns the converted

value$)$ and double convertUSDToJMD $($This function accepts a double value

representing US Dollars and converts itto Jamaican Dollars and returns the

converted value$).$The formulas and exchange rate can be found online.

$5.$ In the com.application.controller package create a class called

CurrencyController which contains one private variable of type CurrencyModel,

this class will also be your main class.

$6.$ In the CurrencyController create apublic function convert which accepts two

String parameters: toConvertTo and value. Check if the string toConvertTo is

JMD or USD and call the corresponding model function $($You will need to

UPDATED BY CHRISTOPHER PANTHER $2022,$ FEB $112$

convert the value to a double when calling the model functions$).$ The return type

is void.

$7.$ In the com.application.view package create a class called CurrencyView.

$8.$ Let your CurrencyView inherit from the JFrame class and the ActionListener

interface.

$9.$ In the CurrencyView implement all unimplemented methods.

$10.$ Create the following attributes in the CurrencyView class:

JLabel lblResult, lblValueLabel

JTextField txtValue

JRadioButton rdbToJMD, rdbToUSD

Button btnConvert, btnClear

JPanel panTop, panMiddle, panBottom

CurrencyController controller

$11.$ In the CurrencyView create a private function called initializeComponents that

accepts nop arameters and has a return type of void. Use the primary constructor

for the Jlabels, JradioButtons, Jbutton and Jpanel. Use the default constructor for

the JTextField. Create a ButtonGroup variable and add the radio buttons to the

button group. The JPanels' should all be a grid layout$($panTop: $3$ columns $1$ row,

panMiddle: $2$ columns $1$ row, panBottom: $2$ columns $1$ row$).$

$12.$ In the CurrencyView create a private function called addComponentsToPanels that

accepts no parameters and has a return type of void. Add the components to the

correct panels as stated below:

panTop: lblValueLabel, txtValue, lblResult

panMiddle: rdbToJMD, rdbToUSD

panBottom: btnConvert, btnClear

$13.$ In the CurrencyView create aprivate function called addPanelsToWindow that

accepts no parameters and has areturn type of void. Add each of the JPanels to

the frame in the following order: panTop, panMiddle, panBottom.

$14.$ In the CurrencyView create aprivate function called setWindowProperties that

accepts no parameters and has a return type of void.

$15.$ In the CurrencyView create aprivate function called registerListeners that accepts no

parameters and has a return type of void. Register the listeners for both the convert button and clear button.

$16.$ In the CurrencyView class create aprimary constructor that accepts an instance of

a CurrencyController as its only parameter, set your local controller variable equal

to the passed parameter,then set the layout for your view to be a GridLayout with

$3$rows and $1$ column. Finally call all functions created in steps $11-15$ in the same

order.

$17.$ In the actionPerformed function inside the CurrencyView check if the source of the

event was the clear button, if it was, reset all the values to their default values.

$18.$ In the actionPerformed function inside the CurrencyView check if the source of the

event was the convert button, if it was check which radio button is selected and then

call the convert function in the controller passing in the correct values.

$19.$ Create apublic function updateResult which accepts one String parameter called

value, set the contents of the result label to be the passed value.

$20.$ In the CurrencyController add a second private variable of type CurrencyView.

$21.$ Update the CurrencyController function convert such that the result of the

conversion is passed to theCurrencyView function updateResult as a string.

$22.$ Create a default Controller for the CurrencyController that initializes both the

model and view $($The view constructor should accept the current instance of the

controller as its argument$).$

$23.$ In the main function initialize the controller, and then run the program.