Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
bartleby

Concept explainers

Question
Book Icon
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.

Blurred answer
Students have asked these similar questions
(Class Average: Reading Student Records from a CSV File) Use Python Use the csv module to read the grades.csv file from the previous exercise (exercise 9.3). Display the data in tabular format, including an additional column showing each student’s average to the right of that student’s three exam grades and an additional row showing the class average on each exam below that exam’s column. This is exercise 9.3 # Importing csv moduleimport csv# empty list to store datadata = []columns = ["firstname", "lastname", "grade1", "grade2", "grade3"]filename = "grades.csv"for i in range(3):firstname = input("Enter First Name : ")lastname = input("Enter Last Name : ")grade1 = float(input("Enter Grade 1 : "))grade2 = float(input("Enter Grade 2 : "))grade3 = float(input("Enter Grade 3 : "))data.append([firstname, lastname, grade1, grade2, grade3])print()# write data and columns as csv filewith open(filename, 'w') as csvfile:# creating a csv writer objectcsvwriter = csv.writer(csvfile)# writing the…
(Same-number subsequence)  JAVA Class Name: Exercise22_05 Write an O(n) program that prompts the user to enter a sequence of integers ending with 0 and finds the longest subsequence with the same number. Sample Run 1 Enter a series of numbers ending with 0:2 4 4 8 8 8 8 2 4 4 0The longest same number sequence starts at index 3 with 4 values of 8 Sample Run 2 Enter a series of numbers ending with 0: 34 4 5 4 3 5 5 3 2 0 The longest same number sequence starts at index 5 with 2 values of 5
(This is for devc++ version 5.11)  Create a text file with following data to test your code. Please use array of structure and try to use functions and pass array of structures to functions. Read the following data from this text file: Johnson 85 83 77 91 76Aniston 80 90 95 93 48Cooper 78 81 11 90 73Gupta 92 83 30 69 87Blair 23 45 96 38 59Clark 60 85 45 39 67Kennedy 77 31 52 74 83Bronson 93 94 89 77 97Sunny 79 85 28 93 82Smith 85 72 49 75 63   LOOK AT PICTURES
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning