Starting Out With Visual C# (5th Edition)
Starting Out With Visual C# (5th Edition)
5th Edition
ISBN: 9780135183519
Author: Tony Gaddis
Publisher: PEARSON
Question
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Chapter 8, Problem 2PP
Program Plan Intro

Average Number of Letters

Program plan:

Design the form:

  • Place two label box controls on the form, and change its name and properties.
  • Place one text box control on the form, and change its name and properties to get the string from user.
  • Place one command button control on the form, and change its name and properties to count the word in a string and determine the average of number of letters and then display it.

In code window, write the code:

Program.cs:

  • Include the required libraries.
  • Define the namespace “Average”.
    • Define a class “Program”.
      • Define a constructor for the class.
      • Define required functions to run “Form1”.

Form1.cs:

  • Include the required libraries.
  • Define namespace “Average”.
    • Define a class “Form1”.
    • In btnCount() method,
      • Call countWords() method to count the number of words in a sentence.
      • Call countCharacters() method to find the average number of words in a sentence.
      • Display the count and average number of words into label box.
    • In countWords() method,
      • Declare the required variables.
      • Check whether “i” is equal to “0” and any white space in a sentence. If yes, set the word begin.
      • Otherwise, check whether “i” is greater than “0” and any white space in a sentence. If yes, set the word begin.
      • Check whether the word begin is set and check the word is digit or letter with correct punctuation. If yes, increment the counter value by “1”.
      • Return the number of words.
    • In countCharacters() method,
      • Declare the required variables.
      • Check whether string length is equal to “0”. If yes, continue the execution.
      • Otherwise, calculate the word length.
      • Check whether the character is punctuation. If yes, decrement the word length.
      • Return the count of word length.
    • Close the application.

Form Design:

View the Form Design in IDE.

Starting Out With Visual C# (5th Edition), Chapter 8, Problem 2PP

Set the Form Control properties in Properties window as follows:

ObjectPropertySetting
Form1TextProgram8_2
label1TextEnter a string:
textBox1Text(Empty)
lblResultText(Empty)
btnCountText Count Words
  • Add two label box controls to the form from Toolbox.
  • Add one text box control to the form from Toolbox.
  • Add one command button control to the form from Toolbox.

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