$3\mathrm{.}15$ LAB JAVA: Input and formatted output: House real estate summary

Sites like Zillow get input about house prices from a database and provide nice summaries for readers. Write a program with two

inputs, current price and last month's price $($both integers$).$ Then, output a summary listing the price, the change since last month, and

the estimated monthly mortgage computed as $($current$\_$price $*0\mathrm{.}051)/12.$

Output each floating$-$point value with two digits after the decimal point, which can be achieved as follows:

print $($f$\text{'}\{$your$\_$value:$\mathrm{.}2$f$\}\text{'})$

Ex: If the input is:

$200000$

$210000$

the output is:

This house is $$200000.$ The change is $$-10000$ since last month.

The estimated monthly mortgage is $$850\mathrm{.}00.$

Note: Getting the precise spacing, punctuation, and newlines exactly right is a key point of this assignment. Such precision is an

important part of programming$\mathrm{.}3\mathrm{.}18$ LAB: Set basIcS

Given the user inputs, complete a program that does the following tasks:

Define a set, fruits, containing the user inputs: my$\_$fruit$1,$ my$\_$fruit$2,$ and my$\_$fruit$3.$

Add the user inputs, your$\_$fruit$1$ and your$\_$fruit$2,$ to fruits.

Add the user input, their$\_$fruit, to fruits.

Add your$\_$fruit$1$ to fruits.

Remove my$\_$fruit$1$ from fruits.

Observe the output of each print statement carefully to understand what was done by each task of the program.

Note: For testing purposes, sets are printed using sorted$()$ for comparison, as in the book's examples.

Ex: If the input is:

apple

peach

lemon

apple

pear

plum

the output is:

$[$ 'apple', 'lemon', 'peach'$]$

$[\text{'}$apple$\text{'},$ 'lemon', 'peach', 'pear'$]$

$[\text{'}$apple$\text{'},$ 'lemon', 'peach', 'pear', 'plum'$]$

$[\text{'}$apple$\text{'},$ 'lemon', 'peach', 'pear', 'plum'$]$

$[\text{'}$lemon$\text{'},$ 'peach', 'pear', 'plum'$]10\mathrm{.}8$ 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

the output is:

Instrument Information:

Name: Drums

Manufacturer: Zildjian

Year built: $2015$

Cost: $2500$

Instrument Information:

Name: Guitar

Manufacturer: Gibson

Year built: $2002$

Cost: $1200$

Number of strings: $6$

Number of frets: $19$