file1.txt

I love a good sandwich.
They are my favorite food.
A sandwich can be very healty.
Or they can be unhealthy.

file2.txt

I love to eat a sandwich at lunch.
I also occasionally eat them at dinner.
A sandwich is very filling.
One of my favorite type of sandwich is gilled cheese.
I like a peanut butter and jelly sandwich too.

file3.txt

If you buy a sandwich at a restaurant they can be quite expensive.
That's why I often make a sandwich at home.
Especially during a lockdown.

Find.java

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

/**
Searches all files for the specified word and prints out all lines    
containing the specified word.
*/
public class Find
{
/**
Searches for word in line.
@param line the line to search
@param word the word to search for
@return true if word is in line, false otherwise
*/
public static boolean containsWord(String line, String word)
{
for (int i = 0; i < line.length() - word.length(); i++)
{
// Search all word-length substrings of line
if (line.substring(i, i + word.length()).equals(word))
{
return true;
}
}
return false;
}

/**
Searches file for a word, prints out all lines containing that word.
@param wordToFind the word to find
@param filename the filename for the file to search
*/
public static void findAndPrint(String wordToFind, String filename)
{
 //-----------Start below here. To do: approximate lines of code = 8
 // fill in the method. Make use of the containsWord() method above. Or use the contains() method of class String
 // If you find the word in a line of a file, print the file name followed by a ": " followed by the line
 // Hint: use a try{..}catch(){...} block.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions.
}

public static void main(String[] args)
{
String wordToFind = "sandwich";
String[] fileNames = {"file1.txt", "file2.txt", "file3.txt"};
for (int i = 0; i < fileNames.length; i++)
{
findAndPrint(wordToFind, fileNames[i]);
}
System.out.println("Expected:");
System.out.println("file1.txt: I love a good sandwich");
System.out.println("file1.txt: A sandwich can be very healty.");
System.out.println("file2.txt: I love to eat a sandwich at lunch.");
System.out.println("file2.txt: A sandwich is very filling.");
System.out.println("file2.txt: One of my favorite type of sandwich is gilled cheese.");
System.out.println("file2.txt: I like a peanut butter and jelly sandwich too.");
System.out.println("file3.txt: If you buy a sandwich at a restaurant they can be quite expensive.");
System.out.println("file3.txt: That's why I often make a sandwich at home.");
}
}

Make sure that you include the output screenshot matching with expected!.... Also make sure your code is formatted all good onto solution inn without any errors!

Answer rating: 100% (QA)

import javaioBufferedReader import javaioFile import javaioFileNotFoundException import javaioFileReader import javautilScanner Searches all files for ... View the full answer