Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
Bartleby Related Questions Icon

Related questions

bartleby

Concept explainers

Question

JAVA PROGRAM ASAP

Please modify this program ASAP BECAUSE the program down below  does not pass all the test cases when I upload it to hypergrade.  The program must pass the test case when uploaded to Hypergrade. 

import java.util.HashMap;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;

public class MorseEncoder {
    private static HashMap<Character, String> codeMappings = new HashMap<>();

    public static void main(String[] args) {
        initializeMappings();

        Scanner textScanner = new Scanner(System.in);
        System.out.println("Please enter a string to convert to Morse code::");
        String textForEncoding = textScanner.nextLine().toUpperCase();

        if ("ENTER".equals(textForEncoding)) {
            System.out.println();
            return;
        }

        String encodedOutput = encodeText(textForEncoding);
        System.out.println(encodedOutput);
    }

    private static void initializeMappings() {
        try (BufferedReader mappingFile = new BufferedReader(new FileReader("morse.txt"))) {
            String lineContent;
            while ((lineContent = mappingFile.readLine()) != null) {
                if(lineContent.length() < 5) {
                    continue;
                }
                char alphaChar = lineContent.charAt(0);
                String morseString = lineContent.substring(4);
                codeMappings.put(alphaChar, morseString);
            }
        } catch (IOException ioEx) {
            ioEx.printStackTrace();
        }
    }

    private static String encodeText(String textForEncoding) {
        StringBuilder encodedStringBuilder = new StringBuilder();

        for (char individualChar : textForEncoding.toCharArray()) {
            if (individualChar == ' ') {
                encodedStringBuilder.append("   ");
                continue;
            }

            String morseSymbol = codeMappings.get(individualChar);
            if (morseSymbol != null) {
                encodedStringBuilder.append(morseSymbol);
                encodedStringBuilder.append(' ');
            }
        }

        return encodedStringBuilder.toString();
    }
}

 

Morse.txt      
0    -----
1    .----
2    ..---
3    ...--
4    ....-
5    .....
6    -....
7    --...
8    ---..
9    ----.
,    --..--
.    .-.-.-
?    ..--..
A    .-
B    -...
C    -.-.
D    -..
E    .
F    ..-.
G    --.
H    ....
I    ..
J    .---
K    -.-
L    .-..
M    --
N    -.
O    ---
P    .--.
Q    --.-
R    .-.
S    ...
T    -
U    ..-
V    ...-
W    .--
X    -..-
Y    -.--
Z    --..
 

Test Case 1

 
 
Please enter a string to convert to Morse code:\n
ENTER
\n
 

Test Case 2

 
 
Please enter a string to convert to Morse code:\n
abcENTER
.- -... -.-. \n
 

Test Case 3

Please enter a string to convert to Morse code:\n
This is a sample string 1234.ENTER
- .... .. ...   .. ...   .-   ... .- -- .--. .-.. .   ... - .-. .. -. --.   .---- ..--- ...-- ....- .-.-.- \n
Test Case 1 Failed Show what's missing
Please enter a string to convert to Morse code:: \n
ENTER
\n
Test Case 2 Failed
Show what's missing
Please enter a string to convert to Morse code: : \n
abc ENTER
\n
Test Case 3 Failed Show what's missing
Please enter a string to convert to Morse code: : \n
This is a sample string 1234. ENTER
\n
expand button
Transcribed Image Text:Test Case 1 Failed Show what's missing Please enter a string to convert to Morse code:: \n ENTER \n Test Case 2 Failed Show what's missing Please enter a string to convert to Morse code: : \n abc ENTER \n Test Case 3 Failed Show what's missing Please enter a string to convert to Morse code: : \n This is a sample string 1234. ENTER \n
Test Case 1
Please enter a string to convert to Morse code: \n
ENTER
\n
Test Case 2
Please enter a string to convert to Morse code: \n
abc ENTER
Test Case 3
\n
Please enter a string to convert to Morse code: \n
This is a sample string 1234. ENTER
\n
expand button
Transcribed Image Text:Test Case 1 Please enter a string to convert to Morse code: \n ENTER \n Test Case 2 Please enter a string to convert to Morse code: \n abc ENTER Test Case 3 \n Please enter a string to convert to Morse code: \n This is a sample string 1234. ENTER \n
Expert Solution
Check Mark
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
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education