Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Java Program ASAP
************This program must work in hypergrade and pass all the test cases.**********
Here is a working program. Please modidy this program so it passes the test cases down below. I have provided the correct test case as a screenshot.
For Test Case 1 first print out Please enter the file name or type QUIT to exit:\ then you type text1.txtENTER and it displays Stop And Smell The Roses./n there needs to be nothing after that.
For test case 2 first print out Please enter the file name or type QUIT to exit: then you type txt1.txtENTER then it reads out File 'txt1.txt' is not found.\n Then it didplays Please re-enter the file name or type QUIT to exit:\n after the test file is not found. then you type in text1.txt and it displays stop and smell the roses.\n.
For test case 3 first print out Please enter the file name or type QUIT to exit: then you type text2.txtENTER and it displays A true rebel you are! Everyone was impressed. You'll do well to continue in the same spirit.\n
Please explain a bit more in the way of footnotes. From the given text it's not clear what are we reading about.\n and there needs to be nothing after that.
For test case 4 first print out Please enter the file name or type QUIT to exit: then you type somefile.txtENTER and it displays File 'somefile.txt' is not found.\n then it displays Please re-enter the file name or type QUIT to exit:\n then you type anotherbadfile.txtENTER and it dispalys File 'anotherbadfile.txt' is not found.\n then in. repeats Please re-enter the file name or type QUIT to exit:\n and you type quit and it ends the program.

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

public class MorseCodeConverter {

public static void main(String[] args) {
Map<String, String> morseCodeMap = readMorseCodeTable("morse.txt");

Scanner scanner = new Scanner(System.in);
System.out.print("Please enter the file name or type QUIT to exit:\n");
do{
String fileName = scanner.nextLine().trim();
if (fileName.equalsIgnoreCase("QUIT")) {
break;
}

try {
String text = convertMorseCodeToText(fileName, morseCodeMap);
System.out.println(text);
break;
} catch (IOException e) {
System.out.println("File '" + fileName + "' is not found.");
System.out.print("Please re-enter the file name or type QUIT to exit:\n");

}
}while(true);

scanner.close();
}

private static Map<String, String> readMorseCodeTable(String fileName) {
Map<String, String> morseCodeMap = new HashMap<>();

try (BufferedReader reader = new BufferedReader(new FileReader(fileName))) {
String line;
while ((line = reader.readLine()) != null) {
String[] parts = line.split("\\s+");
if (parts.length == 2) {
morseCodeMap.put(parts[1], parts[0]);
}
}
} catch (IOException e) {
e.printStackTrace();
}

return morseCodeMap;
}

private static String convertMorseCodeToText(String fileName, Map<String, String> morseCodeMap) throws IOException {
StringBuilder result = new StringBuilder();
try (BufferedReader reader = new BufferedReader(new FileReader(fileName))) {
String line;
while ((line = reader.readLine()) != null) {
String[] morseWords = line.split("\\s{3,}");
for (String morseWord : morseWords) {
String[] morseLetters = morseWord.split("\\s+");
for (String morseLetter : morseLetters) {
if (morseCodeMap.containsKey(morseLetter)) {
result.append(morseCodeMap.get(morseLetter));
}
}

}
result.append("\n");
}
}
return result.toString().trim();
}
}

text1.txt
StopAndSmellTheRoses.
text2.txt
ATrueRebelYouAre!EveryoneWasImpressed.You'llDoWellToContinueInTheSameSpirit.
PleaseExplainABitMoreInTheWayOfFootnotes.FromTheGivenTextIt'sNotClearWhatAreWeReadingAbout.
[画像:Test Case 1 Please enter the file name or type QUIT to exit: \n text1.txt ENTER Stop and smell the roses. \n Test Case 2 Please enter the file name or type QUIT to exit: \n txt1.txt ENTER File 'txt1.txt' is not found. \n Please re-enter the file name or type QUIT to exit: \n text1.txt ENTER Stop and smell the roses.\n Test Case 3 Please enter the file name or type QUIT to exit: \n text2.txt ENTER A true rebel you are! Everyone was impressed. You'll do well to continue in the same spirit.\n Please explain a bit more in the way of footnotes. From the given text it's not clear what are we reading about.\n Test Case 4 Please enter the file name or type QUIT to exit: \n somefile.txt ENTER File 'somefile.txt' is not found.\n Please re-enter the file name or type QUIT to exit: \n anotherbadfile.txt ENTER File 'anotherbadfile.txt' is not found. \n Please re-enter the file name or type QUIT to exit: \n quit ENTER]
expand button
Transcribed Image Text:Test Case 1 Please enter the file name or type QUIT to exit: \n text1.txt ENTER Stop and smell the roses. \n Test Case 2 Please enter the file name or type QUIT to exit: \n txt1.txt ENTER File 'txt1.txt' is not found. \n Please re-enter the file name or type QUIT to exit: \n text1.txt ENTER Stop and smell the roses.\n Test Case 3 Please enter the file name or type QUIT to exit: \n text2.txt ENTER A true rebel you are! Everyone was impressed. You'll do well to continue in the same spirit.\n Please explain a bit more in the way of footnotes. From the given text it's not clear what are we reading about.\n Test Case 4 Please enter the file name or type QUIT to exit: \n somefile.txt ENTER File 'somefile.txt' is not found.\n Please re-enter the file name or type QUIT to exit: \n anotherbadfile.txt ENTER File 'anotherbadfile.txt' is not found. \n Please re-enter the file name or type QUIT to exit: \n quit ENTER
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