代写CS101程序、代写java语言编程

日期：2023-10-12 10:46

Assignment 04: Text Analysis

CS101 - Intro To Computer Science

Fall 2023

In this assignment, you will implement a text analysis tool that counts the number of verbal ticks.

In contrast to previous assignments, you must implement certain tasks using different methods.

Prerequisites:

• Methods

• Arrays

The files for this assignment are in a zip file called 04_text_analysis.zip. There are four groups

of files files in the folder

• TextAnalysis.java: the base implementation of the assignment - includes comments with

the functions you need to implement.

• TextAnalysisTest.java: unit tests - make sure you pass these unit tests before submitting

the assignment.

• .jar files in the lib folder: libraries to enable the use of the unit tests.

• trump_speech_010621.txt: An example text file to run your main function on.

1. Project Setup

The zip file contains a folder called 04_text_analysis, which in turn contains a VS Code

project. Extract the folder from the zip file and open it with VS Code to begin implementing and running your assignment. The folder contains the skeleton code for your submission, as well as further instructions on the various methods you need to implement, in

src/edu/nyu/assignment4/TextAnalysis.java.

Note that this skeleton code already contains a Scanner called scanner. Use this one in all the

methods.

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2. Text Analysis

The program must be able to open any text file specified by the user, and analyze the frequency

of verbal tics in the text. Since there are many different kinds of verbal tics (such as "like",

"uh", "um", etc) the program must ask the user what tics to look for. A user can enter multiple

tics, separated by commas. Any spaces entered by the user before or after each tic must be

ignored. You can assume that all tics are single words.

We will do this task by implementing a variety of small methods to accomplish this larger

task. Every method you need to implement is described in TextAnalysis.java. Not every method has a function prototype prepared - some functions like the countOccurrences

method is only described in a comment so you get to define the method’s prototype (i.e

specify the parameters and return value of the method). The @param and @return statements in the comments indicate what the expected parameters and return type should

be. If you correctly implement these methods your code should "pass" the unit tests in

src/edu/nyu/assignment4/tests/TextAnalysisTest.java.

A description of how to check if your code passes unit tests is later in the document.

After the program is fully implemented, it should output allow the user to submit a text file

and a sequence of tics separated by commas and it should return the following statistics:

• the total number of tics found in the text

• the density of tics (proportion of all words in the text that are tics)

• the frequency of each of the verbal tics

• the percentage that each tic represents out of all the total number of tics

This example shows suggested input/output of such a program, using a file

trump_speech_010621.txt that is contained in the assignment zip file.

What file would you like to open ?

trump_speech_010621 . txt

What words would you like to look for ?

uh , like , um , so

............................... Analyzing text .................................

Total number of tics : 87

Density of tics : 0.01

............................... Tic breakdown ..................................

uh / 0 / 0% of all tics

like / 32 / 37% of all tics

um / 0 / 0% of all tics

so / 55 / 63% of all tics

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3. Unit Tests

This assignment includes unit tests to make sure that your code conforms to our expected set

of methods. Unit tests are used for a variety of reasons, but two key reasons are what we are

doing here, to define how code should be invoked, and also to make sure that code continues to

perform consistently over time.

The unit tests will only build and run AFTER you have defined the various methods required

for this assignment. Unit tests can be run by following the instructions in Figure 1. Note that

these unit tests are VERY similar to how your assignments are graded - the autograder we use

is implemented by running similar unit tests and giving marks if you pass them.

Figure 1: The red square indicates the Test tab and the green square indicates how to run or debug

the tests. If you highlight the individual you should see play/debug buttons appear next to them.

If you press those buttons you will run just a single unit test.

4. Submission

Submit the following files:

• TextAnalysis.java

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