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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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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