Introduction to Programming Using Visual Basic (10th Edition)
10th Edition
ISBN: 9780134542782
Author: David I. Schneider
Publisher: PEARSON
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Question
Chapter 4.2, Problem 24E
Program Plan Intro
1. Variables mentioned below are used:
- txtInput- A text box where the input should be entered.
- txtOutput- A text box where the output is displayed.
- btnOutput- Button which invokes the procedure for displaying output.
2. Functions mentioned below are used:
- btnDisplay_Click()- Procedure for displaying the output in text box txtOutput.
Program description:
To write a program that calculates the total cost and displays it based on the number of copies which is input by the user.
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Standard telephone keypads contain the digits zero through nine. The numbers two through nine each have three letters associated with them (Fig. 1). Many people find it difficult to memorize phone numbers, so they use the correspondence between digits and letters to develop seven-letter words that correspond to their phone numbers. For example, a person whose telephone number is 686-2377 might use the correspondence indicated in Fig. 1 to develop the seven-letter word “NUMBERS.” Every seven-letter word corresponds to exactly one seven-digit telephone number. A restaurant wishing to increase its takeout business could surely do so with the number 825-3688 (i.e., “TAKEOUT”).
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Introduction to Programming Using Visual Basic (10th Edition)
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