Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
7th Edition
ISBN: 9780134802213
Author: Tony Gaddis
Publisher: PEARSON
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Question
Chapter 9, Problem 16PC
Program Plan Intro
Morse Code Converter
Program Plan:
The detail of “MorseCodeConverter” class is shown below:
- In the “main()” method,
- Declare the variable.
- Create an object for Scanner class.
- Read the string input from the user.
- Create an object for Morse object to invoke parameterized constructor.
- Call the getMorseCode() method to display the Morse code.
The detail of “Morse” class is shown below:
- Declare the required variables.
- In the “Morse()” parameterized constructor,
- Declare and initialize the required variables.
- The while loop executes until the “index” is less than length of input. If yes,
- Get the morse code for character and then append it into “mcode” with newline.
- Increment “index” by “1”.
- In the “toMorse()” method,
- Declare the variable.
- The while loop executes until the find character in array. If yes, increment “index” by “1”.
- Check whether “index” is greater than or equal to “NUM_CHARS”. If yes, set the value as character was not found.
- Otherwise, get the morse code.
- Return the morse value.
- In the “getOriginal()” method,
- Return the original string.
- In the “getOriginal()” method,
- Return the converted morsecode character.
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Please CREATE A program ASAP BECAUSE IT IS LAB ASSIGNMENT so it passes all the test cases. The program must pass the test case when uploaded to Hypergrade.
Chapter 9. PC #16. Morse Code Converter
Morse code is a code where each letter of the English alphabet, each digit, and various punctuation characters are represented by a series of dots and dashes. Write a program that asks the user to enter a string, and then converts that string to Morse code and prints on the screen. Use hyphens for dashes and periods for dots. The Morse code table is given in a text file morse.txt. When printing morse code, display eight codes on each line except the last line. Codes should be separated from each other with one space. There should be no extra spaces at the beginning and at the end of the output. Uppercase and lowercase letters are translated the same way.
Morse.txt
0 -----1 .----2 ..---3 ...--4 ....-5 .....6 -....7 --...8 ---..9 ----.,…
Lab Activity for the students:
Exercise 5: Write a program that asks the user to input a letter. The program finds and prints if the letter is
uppercase or lowercase. Then, the program asks the user to input a string and get a three-character substring
from the beginning of the string. (1 Mark )
Example : If the inputs are 'y' and "Community". Then, the program will print:
y is lowercase
The substring is: Com
Chapter 9 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
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