CountOccurenceofWordsfromFile.Java Program Plan: Include a class named “DisplayFrequency”. Import BufferedReader. Import file from io package. Import FileReader from io package. Import exception package. Import java util package. Declare the main() function. Declare a scanner for user input. Prompt the user to input file path. Check if file is present or not. Create a word array. Inside a try block declare “BufferedReader” and create a new String buffer. Split the words using toString() method and append the strings. Catch block is declared to handle the exception. To hold words as key and count as value, a TreeMap is created. Use split method to split words. Convert word to lowercase. Check if length of key is greater than 0. Check if the map contains the key. Insert key into map. Get the key. Update the key value and store the updated value. Display key and value for each entry. Create a new text file “file”. Add words into the text file.

Question

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Answer 1

Question

Chapter 21, Problem 21.8PE

Program Plan Intro

CountOccurenceofWordsfromFile.Java

Program Plan:

Include a class named “DisplayFrequency”.

Import BufferedReader.

Import file from io package.

Import FileReader from io package.

Import exception package.

Import java util package.

Declare the main() function.

Declare a scanner for user input.

Prompt the user to input file path.

Check if file is present or not.

Create a word array.

Inside a try block declare “BufferedReader” and create a new String buffer.

Split the words using toString() method and append the strings.

Catch block is declared to handle the exception.

To hold words as key and count as value, a TreeMap is created.

Use split method to split words.

Convert word to lowercase.

Check if length of key is greater than 0.

Check if the map contains the key.

Insert key into map.

Get the key.

Update the key value and store the updated value.

Display key and value for each entry.

Create a new text file “file”.

Add words into the text file.

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Answer 2

Question

Chapter 21, Problem 21.8PE

Program Plan Intro

CountOccurenceofWordsfromFile.Java

Program Plan:

Include a class named “DisplayFrequency”.

Import BufferedReader.

Import file from io package.

Import FileReader from io package.

Import exception package.

Import java util package.

Declare the main() function.

Declare a scanner for user input.

Prompt the user to input file path.

Check if file is present or not.

Create a word array.

Inside a try block declare “BufferedReader” and create a new String buffer.

Split the words using toString() method and append the strings.

Catch block is declared to handle the exception.

To hold words as key and count as value, a TreeMap is created.

Use split method to split words.

Convert word to lowercase.

Check if length of key is greater than 0.

Check if the map contains the key.

Insert key into map.

Get the key.

Update the key value and store the updated value.

Display key and value for each entry.

Create a new text file “file”.

Add words into the text file.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 21, Problem 21.8PE

Program Plan Intro

CountOccurenceofWordsfromFile.Java

Program Plan:

Include a class named “DisplayFrequency”.

Import BufferedReader.

Import file from io package.

Import FileReader from io package.

Import exception package.

Import java util package.

Declare the main() function.

Declare a scanner for user input.

Prompt the user to input file path.

Check if file is present or not.

Create a word array.

Inside a try block declare “BufferedReader” and create a new String buffer.

Split the words using toString() method and append the strings.

Catch block is declared to handle the exception.

To hold words as key and count as value, a TreeMap is created.

Use split method to split words.

Convert word to lowercase.

Check if length of key is greater than 0.

Check if the map contains the key.

Insert key into map.

Get the key.

Update the key value and store the updated value.

Display key and value for each entry.

Create a new text file “file”.

Add words into the text file.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 21, Problem 21.8PE

Program Plan Intro

CountOccurenceofWordsfromFile.Java

Program Plan:

Include a class named “DisplayFrequency”.

Import BufferedReader.

Import file from io package.

Import FileReader from io package.

Import exception package.

Import java util package.

Declare the main() function.

Declare a scanner for user input.

Prompt the user to input file path.

Check if file is present or not.

Create a word array.

Inside a try block declare “BufferedReader” and create a new String buffer.

Split the words using toString() method and append the strings.

Catch block is declared to handle the exception.

To hold words as key and count as value, a TreeMap is created.

Use split method to split words.

Convert word to lowercase.

Check if length of key is greater than 0.

Check if the map contains the key.

Insert key into map.

Get the key.

Update the key value and store the updated value.

Display key and value for each entry.

Create a new text file “file”.

Add words into the text file.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 21, Problem 21.8PE

Program Plan Intro

CountOccurenceofWordsfromFile.Java

Program Plan:

Include a class named “DisplayFrequency”.

Import BufferedReader.

Import file from io package.

Import FileReader from io package.

Import exception package.

Import java util package.

Declare the main() function.

Declare a scanner for user input.

Prompt the user to input file path.

Check if file is present or not.

Create a word array.

Inside a try block declare “BufferedReader” and create a new String buffer.

Split the words using toString() method and append the strings.

Catch block is declared to handle the exception.

To hold words as key and count as value, a TreeMap is created.

Use split method to split words.

Convert word to lowercase.

Check if length of key is greater than 0.

Check if the map contains the key.

Insert key into map.

Get the key.

Update the key value and store the updated value.

Display key and value for each entry.

Create a new text file “file”.

Add words into the text file.

Answer 6

Chapter 21, Problem 21.8PE

Program Plan Intro

CountOccurenceofWordsfromFile.Java

Program Plan:

Include a class named “DisplayFrequency”.

Import BufferedReader.

Import file from io package.

Import FileReader from io package.

Import exception package.

Import java util package.

Declare the main() function.

Declare a scanner for user input.

Prompt the user to input file path.

Check if file is present or not.

Create a word array.

Inside a try block declare “BufferedReader” and create a new String buffer.

Split the words using toString() method and append the strings.

Catch block is declared to handle the exception.

To hold words as key and count as value, a TreeMap is created.

Use split method to split words.

Convert word to lowercase.

Check if length of key is greater than 0.

Check if the map contains the key.

Insert key into map.

Get the key.

Update the key value and store the updated value.

Display key and value for each entry.

Create a new text file “file”.

Add words into the text file.

Answer 7

Chapter 21, Problem 21.8PE

Program Plan Intro

CountOccurenceofWordsfromFile.Java

Program Plan:

Include a class named “DisplayFrequency”.

Import BufferedReader.

Import file from io package.

Import FileReader from io package.

Import exception package.

Import java util package.

Declare the main() function.

Declare a scanner for user input.

Prompt the user to input file path.

Check if file is present or not.

Create a word array.

Inside a try block declare “BufferedReader” and create a new String buffer.

Split the words using toString() method and append the strings.

Catch block is declared to handle the exception.

To hold words as key and count as value, a TreeMap is created.

Use split method to split words.

Convert word to lowercase.

Check if length of key is greater than 0.

Check if the map contains the key.

Insert key into map.

Get the key.

Update the key value and store the updated value.

Display key and value for each entry.

Create a new text file “file”.

Add words into the text file.

Answer 8

Expert Solution & Answer

Answer 9

Expert Solution & Answer

Answer 10

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Answer 11

Ch. 21.2 - Prob. 21.2.1CP Ch. 21.2 - Prob. 21.2.2CP Ch. 21.2 - Prob. 21.2.3CP Ch. 21.2 - Prob. 21.2.4CP Ch. 21.2 - Prob. 21.2.5CP Ch. 21.2 - Suppose set1 is a set that contains the strings...Ch. 21.2 - Prob. 21.2.7CP Ch. 21.2 - Prob. 21.2.8CP Ch. 21.2 - What will the output be if lines 67 in Listing...Ch. 21.2 - Prob. 21.2.10CP

Solution Summary: The author describes the java code to design a class that asks the user to entire the file from command lien argument.

Concept explainers

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Chapter 21 Solutions