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CSCI Lab 1: Basic Problem Solving Solution

$30.00 $24.00

Objective In this lab, you will practice the process of problem solving and coding when you may not have all of the details of the problem. For some, this will seem easy. For others, there will be some challenge to grasp everything within the lab time. Working independently or in groups of two students, you…

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5/5 – (2 votes)

Objective

In this lab, you will practice the process of problem solving and coding when you may not have all of the details of the problem. For some, this will seem easy. For others, there will be some challenge to grasp everything within the lab time.

Working independently or in groups of two students, you will write code to implement a Map data structure in Java.

A Map is a structure that stores key-value pairs, meaning that you want to store and retrieve pairs of data. The rst bit of data is called the key. The second bit of data is called the value. Given the key, you can retrieve the value associated with that key. Keys are unique to the Map (meaning that you can’t have two entries with the same key) while values are not unique (meaning that you can have two keys that map to the same value).

In addition to a constructor, you should implement the methods get and put for your Map.

In your implementation, you cannot use any of the existing Java Map classes.

Preparation

Ensure that you have your Integrated Development Editor (IDE) for Java installed.

Resources

None required.

Procedure

Set up

None.

Lab steps

  1. Ensure that you and your partner agree on an understanding of the problem.

  1. List the elements of the problem statement that are not de ned su ciently-well to begin an implementation.

1

  1. Select a resolution for the missing parts of step 2.

  1. Decide on the approach you will use to implement the methods

How you will store the data

What di culties you will expect

  1. Implement your solution.

Analysis

Identify how you will know that your implementation is working.

Reporting

  1. In one le, list

Your team members

A list of items from the description that needed clari cation Your decisions on the items that need clari cation

How you showed that your work (so far) is working

  1. In that same le, brie y describe either

How you would approach this problem di erently if you had to start new; or

What you did well in developing the implementation that you could use as an approach to implementing another problem.

  1. Generate a PDF from the document.

  1. Submit the PDF and your Java les in Brightspace in the Lab/Lab 1 section of the course page in Brightspace.

Note: Only one member of the group needs to submit the report.

Assessment

The assessment will be on a letter grade and will re ect how well you are demonstrating and executing on problem solving techniques that could be used in other situations. I am more concerned with your thinking about how to get a solution than on the code being complete solution.

2

Letter grade

Items

that

Decisions

on

Implementation

Demonstration

Looking forward

needed clari ca-

items for clari –

of work so far

tion

cation

A

(Excellent)

Have

thought

Resolution

for

The

map

im-

There is a de –

Have

a

strategy

through all

the

unclear

items

plementation

is

nite plan on how

that

will

carry

aspects

of

the

are well thought-

complete

and

to show that the

forward to other

problem .

out

based

on

well-done.

Well

code works.

All

problems.

future

direction

documented

the

cases

are

of the work

and

easy

to

covered.

build

on

later.

Guards

against

input

validation

problems.

B

(Good)

List

of

items

Reasonable

The

map

im-

There

is

some

Have

identi ed

is

relatively

conclusions

plementation

notion of what’s

what

worked

complete.

made

about

is

complete

needed

to

show

or

should

have

each

unclear

and

has

all

the code is work-

worked

in

this

item, along with

the

relevant

ing.

May

not

problem.

signs of thinking

functionality

be

fully

imple-

through

the

working.

mented here.

conclusions.

C

(Satisfactory)

There

are

There

is

a

General

frame-

Has a notion of

Show

an aware-

enough

key

consistent

set

work

of

the

using testing on

ness

that

some

items

identi ed

of

conclusions

implementa-

the

code.

In-

things

might

to

get

started,

made

for

the

tion

is in

place

complete

set

of

make

it

easier

but

more

will

items.

and

the

major

tests.

or

harder,

but

arise

as

you

components

are

may not be able

proceed.

done.

to identify them

clearly.

D

(Marginal Pass)

Approach

seems

There

is

some

At

least

one

of

Provide

some

Minimal

aware-

to be to nd the

resolution to the

the

methods

is

argument

with

ness

that

the

items as you go .

items,

though

in place

and

on

some

basis

on

strategy

by

some may

track to be work-

why the code is

which

we

ap-

ing.

working.

Noth-

proach

a

prob-

ing

formal

or

lem can make a

complete.

di erence on the

solution.

F

(Inadequate)

No discussion on

Lack

of clarity

Little

code

is

Little

convinc-

Little

aware-

items to clarify.

on the resolution

done

and/or

is

ing

argument

ness

of

what

of the items.

not in a state to

beyond

an

as-

can

make

the

work.

sertion

that

the

problem

solving

code works.

process go well.

3

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