Answered: Please modify this program ASAP BECAUSE…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

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

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

Step by step

Solved in 5 steps with 9 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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