$2\mathrm{.}8$ LAB: Instrument information $($derived classes$)$

Given the base class Instrument, define a derived class StringInstrument for string instruments with a constructor that initializes the attributes of the Instrument class as well as new attributes of the following types

integer to store the number of strings

integer to store the number of frets

boolean to store whether the instrument is bowed

Ex$.$ If the input is:

Drums

Zildjian

$2015$

$2500$

Guitar

Gibson

$2002$

$1200$

$6$

$19$

False class Instrument:

def $\_\_$init$\_\_($self$,$ name, manufacturer, year$\_$built, cost$)$:

self.name $=$ name

self.manufacturer $=$ manufacturer

self.year$\_$built $=$ year$\_$built

self.cost $=$ cost

def print$\_$info$($self$)$:

print$($f$\text{'}$Instrument Information:$\text{'})$

print$($f$\text{'}$ Name: $\{$ self.name $\}\text{'})$

print$($f$\text{'}$ Manufacturer: $\{$ self.manufacturer $\}\text{'})$

print$($f$\text{'}$ Year built: $\{$ self.year$\_$built $\}\text{'})$

print$($f$\text{'}$ Cost: $\{$ self.cost $\}\text{'})$

class StringInstrument$($Instrument$)$:

public class StringInstrument extends Instrument $\{$

private int numberOfStrings;

private int numberOfFrets;

private boolean isBowed;

public StringInstrument$($String name, String sound, int numberOfStrings, int numberOfFrets, boolean isBowed$)\{$

super$($name$,$ sound$)$;

this.numberOfStrings $=$ numberOfStrings;

this.numberOfFrets $=$ numberOfFrets;

this.isBowed $=$ isBowed;

$\}$

$\}$

if $\_\_$name$\_\_=="\_\_$main$\_\_"$:

instrument$\_$name $=$ input$()$

manufacturer$\_$name $=$ input$()$

year$\_$built $=$ int$($input$())$

cost $=$ int$($input$())$

string$\_$instrument$\_$name $=$ input$()$

string$\_$manufacturer $=$ input$()$

string$\_$year$\_$built $=$ int$($input$())$

string$\_$cost $=$ int$($input$())$

num$\_$strings $=$ int$($input$())$

num$\_$frets $=$ int$($input$())$

is$\_$bowed $=$ input$()==$ 'True'

my$\_$instrument $=$ Instrument$($instrument$\_$name, manufacturer$\_$name, year$\_$built, cost$)$

my$\_$string$\_$instrument $=$ StringInstrument$($string$\_$instrument$\_$name, string$\_$manufacturer, string$\_$year$\_$built, string$\_$cost$,$ num$\_$strings, num$\_$frets, is$\_$bowed$)$

my$\_$instrument.print$\_$info$()$

my$\_$string$\_$instrument.print$\_$info$()$

print$($f$\text{'}$ Number of strings: $\{$ my$\_$string$\_$instrument.num$\_$strings$\}\text{'})$

print$($f$\text{'}$ Number of frets: $\{$ my$\_$string$\_$instrument.num$\_$frets$\}\text{'})$

print$($f$\text{'}$ Is bowed: $\{$ my$\_$string$\_$instrument.is$\_$bowed$\}\text{'})$