JAVA Program: Input and Output Write a JAVA program that takes an input file as

ID: 3795594 • Letter: J

Question

JAVA Program: Input and Output

Write a JAVA program that takes an input file as an argument and writes to an output file with the following properties:

-Read input file and search for palindromes (Words spelled the same forward and backward, such as racecar)

------public static boolean isPalindrome (String word)

-Output file displays:

------Number of palindromes found on first line

------Each palindrome found on new line

-Make sure to divide the program into logical methods

-Make sure to handle errors and exceptions

-Make sure to use default package.

Explanation / Answer

Please use the below two classes as a solution.

PalindromExecutor.java :

import java.util.Scanner;

public class PalindromExecutor extends PalindromFuncrions{

public PalindromFuncrions PFS = new PalindromFuncrions();

public static void main(String[] args) {

// TODO Auto-generated method stub

String FP;

Scanner in = new Scanner(System.in);

FP=in.nextLine();

//Calling the palindrom functions

PalindromCount(getWords(FP));

System.out.println("The number of palindromes are : "+palindromCount);

}

PalindromFuncrions.java :

import java.io.BufferedReader;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStreamReader;

public class PalindromFuncrions {

public static String[] words;

public static int palindromCount=0;

public static String[] getWords(String FilePath){

if (FilePath == null) {

return null;

}

FilePath=FilePath.replaceAll("\", "/");

//ArrayList<String> list = new ArrayList<String>();

try {

FileInputStream fin=new FileInputStream(FilePath);

BufferedReader br=new BufferedReader(new InputStreamReader(fin));

String Line;

try {

while((Line=br.readLine())!=null)

{

words = Line.split(" ");

}

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

System.out.println("An error occured while reading a file : " + " ");

e.printStackTrace();

}

return words;

}

public static int PalindromCount(String[] words){

for(int i=0; i < words.length; i++){

String word = words[i].toLowerCase().toString();

if(!isPalindrom(word)){

System.out.println("The word "+word+" is not a palindrom");

}else{

palindromCount++;

//return palindromCount;

}

return palindromCount;

}

public static boolean isPalindrom(String word){

String tempStr=word;

String revStr="";

for(int i=tempStr.length()-1;i>0;--i){

revStr +=tempStr.charAt(i);

}

if(!revStr.equals("") && revStr.equalsIgnoreCase(word)){

return true;

}

return false;

}