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import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; public class Main {     public static void main(String[] args) {         Scanner keyboard = new Scanner(System.in);         String fileName;         while (true) {             System.out.print("Please enter the file name or type QUIT to exit:\n");             fileName = keyboard.nextLine().trim();             if (fileName.equalsIgnoreCase("QUIT")) {                 break;             }             File file = new File(fileName);             if (file.exists()) {                 int wordCount = countWords(file);                 System.out.println("Total number of words: " + wordCount);             } else {                 System.out.println("File: " + fileName + " does not exist.");             }         }         keyboard.close();     }     public static int countWords(File file) {         int wordCount = 0;         try {             Scanner inputFile = new Scanner(file);             while (inputFile.hasNext()) {                 String line = inputFile.nextLine().trim();                 if (!line.isEmpty()) {                     String[] words = line.split("\\s+");                     wordCount += words.length;                 }                 else {                     wordCount = 0;                 }             }             inputFile.close();         } catch (FileNotFoundException e) {             e.printStackTrace();         }         return wordCount;     } }   Chapter 9. PC #10. Word Counter (page 610) Write a program that asks the user for the name of a file. The program should display the number of words that the file contains. Input Validation: Make sure the file exists, before proceeding. Let the user type quit in order to exit the program. If the file is empty, the word count should be 0.   input1.txt this is a test input2.txt this is a test input3.txt Empty input4txt  this this     is is      a a       test test   Test Case 1     Please enter the file name or type QUIT to exit:\n input1.txtENTER Total number of words: 4\n   Test Case 2     Please enter the file name or type QUIT to exit:\n input2.txtENTER Total number of words: 4\n   Test Case 3     Please enter the file name or type QUIT to exit:\n input3.txtENTER Total number of words: 0\n   Test Case 4     Please enter the file name or type QUIT to exit:\n input4.txtENTER Total number of words: 8\n   Test Case 5     Please enter the file name or type QUIT to exit:\n input5.txtENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit:\n input1.txtENTER Total number of words: 4\n   Test Case 6     Please enter the file name or type QUIT to exit:\n qUitENTER   Test Case 7   Please enter the file name or type QUIT to exit:\n input5.txtENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit:\n quItENTER

import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; public class Main {     public static void main(String[] args) {         Scanner keyboard = new Scanner(System.in);         String fileName;         while (true) {             System.out.print("Please enter the file name or type QUIT to exit:\n");             fileName = keyboard.nextLine().trim();             if (fileName.equalsIgnoreCase("QUIT")) {                 break;             }             File file = new File(fileName);             if (file.exists()) {                 int wordCount = countWords(file);                 System.out.println("Total number of words: " + wordCount);             } else {                 System.out.println("File: " + fileName + " does not exist.");             }         }         keyboard.close();     }     public static int countWords(File file) {         int wordCount = 0;         try {             Scanner inputFile = new Scanner(file);             while (inputFile.hasNext()) {                 String line = inputFile.nextLine().trim();                 if (!line.isEmpty()) {                     String[] words = line.split("\\s+");                     wordCount += words.length;                 }                 else {                     wordCount = 0;                 }             }             inputFile.close();         } catch (FileNotFoundException e) {             e.printStackTrace();         }         return wordCount;     } }   Chapter 9. PC #10. Word Counter (page 610) Write a program that asks the user for the name of a file. The program should display the number of words that the file contains. Input Validation: Make sure the file exists, before proceeding. Let the user type quit in order to exit the program. If the file is empty, the word count should be 0.   input1.txt this is a test input2.txt this is a test input3.txt Empty input4txt  this this     is is      a a       test test   Test Case 1     Please enter the file name or type QUIT to exit:\n input1.txtENTER Total number of words: 4\n   Test Case 2     Please enter the file name or type QUIT to exit:\n input2.txtENTER Total number of words: 4\n   Test Case 3     Please enter the file name or type QUIT to exit:\n input3.txtENTER Total number of words: 0\n   Test Case 4     Please enter the file name or type QUIT to exit:\n input4.txtENTER Total number of words: 8\n   Test Case 5     Please enter the file name or type QUIT to exit:\n input5.txtENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit:\n input1.txtENTER Total number of words: 4\n   Test Case 6     Please enter the file name or type QUIT to exit:\n qUitENTER   Test Case 7   Please enter the file name or type QUIT to exit:\n input5.txtENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit:\n quItENTER

Database System Concepts
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
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 FOR TEST CAST 5 AND 7 Please enter the file name again or type QUIT MUST REPEAT AFTER YOU INPUT5.TXT. Hypergrade does not like this program because it says 2 out of 7 passed and  Please Modify and change this program ASAP BECAUSE IT IS HOMEWORK ASSIGNMENT so it passes all the test cases. The program must pass the test case when uploaded to Hypergrade. Also, for test cases 1-4 it wants only to input Please enter the file name or type QUIT to exit: then input the file and display the Total number of words. For test cases 5 and 7 it wants to only to input Please enter the file name or type QUIT to exit then input input5.txt and then display File: input5.txt does not exist.\n then display Please enter the file name again or type QUIT to exit:\n then type input1.txt to display the total number of words or type quit to exit the program. For test case 6 it wants only to Please enter the file name again or type QUIT to exit:\n then type quit to exit the porgram.
 

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner keyboard = new Scanner(System.in);
        String fileName;

        while (true) {
            System.out.print("Please enter the file name or type QUIT to exit:\n");
            fileName = keyboard.nextLine().trim();

            if (fileName.equalsIgnoreCase("QUIT")) {
                break;
            }

            File file = new File(fileName);

            if (file.exists()) {
                int wordCount = countWords(file);
                System.out.println("Total number of words: " + wordCount);
            } else {
                System.out.println("File: " + fileName + " does not exist.");
            }
        }
        keyboard.close();
    }

    public static int countWords(File file) {
        int wordCount = 0;
        try {
            Scanner inputFile = new Scanner(file);
            while (inputFile.hasNext()) {
                String line = inputFile.nextLine().trim();
                if (!line.isEmpty()) {
                    String[] words = line.split("\\s+");
                    wordCount += words.length;
                }
                else {
                    wordCount = 0;
                }
            }
            inputFile.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return wordCount;
    }
}

 
Chapter 9. PC #10. Word Counter (page 610)
Write a program that asks the user for the name of a file. The program should display the number of words that the file contains.
Input Validation:
Make sure the file exists, before proceeding. Let the user type quit in order to exit the program. If the file is empty, the word count should be 0.
 

input1.txt

this is a test

input2.txt

this
is
a
test

input3.txt
Empty

input4txt 
this this
    is is
     a a
      test test

 

Test Case 1

 
 
Please enter the file name or type QUIT to exit:\n
input1.txtENTER
Total number of words: 4\n
 

Test Case 2

 
 
Please enter the file name or type QUIT to exit:\n
input2.txtENTER
Total number of words: 4\n
 

Test Case 3

 
 
Please enter the file name or type QUIT to exit:\n
input3.txtENTER
Total number of words: 0\n
 

Test Case 4

 
 
Please enter the file name or type QUIT to exit:\n
input4.txtENTER
Total number of words: 8\n
 

Test Case 5

 
 
Please enter the file name or type QUIT to exit:\n
input5.txtENTER
File: input5.txt does not exist.\n
Please enter the file name again or type QUIT to exit:\n
input1.txtENTER
Total number of words: 4\n
 

Test Case 6

 
 
Please enter the file name or type QUIT to exit:\n
qUitENTER
 

Test Case 7

 
Please enter the file name or type QUIT to exit:\n
input5.txtENTER
File: input5.txt does not exist.\n
Please enter the file name again or type QUIT to exit:\n
quItENTER


 
Test Case 1 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n Test Case 2 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input2.txt ENTER Total number of words: 4\n Test Case 3 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input3.txt ENTER Total number of words: 0\n Test Case 4 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input4.txt ENTER Total number of words: 8\n Test Case 5 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input5.txt ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n Test Case 6 Passed! Please enter the file name or type QUIT to exit: \n qUit ENTER Test Case 7 Passed! Please enter the file name or type QUIT to exit: \n input5.txt |ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n quIt ENTER
Transcribed Image Text:Test Case 1 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n Test Case 2 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input2.txt ENTER Total number of words: 4\n Test Case 3 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input3.txt ENTER Total number of words: 0\n Test Case 4 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input4.txt ENTER Total number of words: 8\n Test Case 5 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input5.txt ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n Test Case 6 Passed! Please enter the file name or type QUIT to exit: \n qUit ENTER Test Case 7 Passed! Please enter the file name or type QUIT to exit: \n input5.txt |ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n quIt ENTER
Test Case 1 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n \n Test Case 2 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input2.txt ENTER Total number of words: 4\n \n Test Case 3 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input3.txt ENTER Total number of words: 0\n \n Test Case 4 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input4.txt ENTER Total number of words: 8\n \n Test Case 5 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input5.txt ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n \n Test Case 6 Passed! Please enter the file name or type QUIT to exit: \n qUit ENTER Test Case 7 Passed! Please enter the file name or type QUIT to exit: \n input5.txt ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n quIt ENTER
Transcribed Image Text:Test Case 1 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n \n Test Case 2 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input2.txt ENTER Total number of words: 4\n \n Test Case 3 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input3.txt ENTER Total number of words: 0\n \n Test Case 4 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input4.txt ENTER Total number of words: 8\n \n Test Case 5 Failed Show what's missing Please enter the file name or type QUIT to exit: \n input5.txt ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n input1.txt ENTER Total number of words: 4\n \n Test Case 6 Passed! Please enter the file name or type QUIT to exit: \n qUit ENTER Test Case 7 Passed! Please enter the file name or type QUIT to exit: \n input5.txt ENTER File: input5.txt does not exist.\n Please enter the file name again or type QUIT to exit: \n quIt ENTER
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