Design and write an application that will merge two files that are already sorted alphabetically. The merged file will also be sorted alphabetically. The input files will contain 1 full name per file. On each line will be the last, first name with a space between the comma and the first name. All file names will be input from the user. You should recover from a FileNotFoundException and allow the user the opportunity to enter a valid file name. All files will have a .txt extension. I should be able to do this for multiple sets of files (use a sentinel value), or no sets of files.

Here is the code I have so far:

import java.io.*; import java.util.*;

public class MergingFiles { /********************************************************** * Psedocode: * BEGIN JoiningTwoFiles * TRY * Input name of first file * Input name of second file * Open both files for writing * WHILE (both files have lines remaining) * Init count = 0 * Init length = 0 * Init name1 to an empty string * Init name2 to an empty string * Read next line in first file and store line in name1 * Read next line in second file and store line in name2 * IF (name1 is the same as name2) * Send both names to output file * ELSE * Set if outputted equal to false * WHILE (a name has not been sent to output file) * Init char at name1 is char at count position * Init char at name2 is char at count position * IF (char in name1 is alphabetically before first char in name2) * Send name1 to output file * Set if outputted equal to true * ELSE IF (char in name2 is alphabetically before first char in name1) * Send name2 to output file * Set if outputted equal to true * ELSE * count++ * END IF * END WHILE * END IF * END WHILE * END TRY * CATCH (IOexception) * Disp error msg * END CATCH * Close output file * END JoiningTwoFiles * @throws FileNotFoundException **********************************************************/ public static void main(String[] args) throws FileNotFoundException { // Constants final String OUTPUT_FILE = "output.txt"; final String QUIT = "-1";

// Variables int count; // Count of the letters in the name String firstFile; // The name of the first input file String secondFile; // The name of the second input file String name1; // The name on first file String name2; // The name on second file char charName1; // Characters in name for first file char charName2; // Characters in name for second file boolean ifOutputted; // To see if we have outputted a name Scanner fileScan1; // Object to read lines from the first input file Scanner fileScan2; // Object to read lines from the second input file

PrintWriter output = new PrintWriter(OUTPUT_FILE); Scanner scan = new Scanner(System.in); /******************************/

// TRY try { // Input name of first file System.out.println(" \t\t\tInput first file name or enter -1 to quit: "); firstFile = scan.nextLine();

while (!firstFile.equals(QUIT)) { // Input name of second file System.out.println("\t\t\tInput second file name:"); secondFile = scan.nextLine();

// Open the first file for writing fileScan1 = new Scanner(new File (firstFile));

// Open the second file for writing fileScan2 = new Scanner(new File (secondFile));

// WHILE (both files have lines remaining) while (fileScan1.hasNext() && fileScan2.hasNext()) { // Init count = 0 count = 0;

// Init name1 to empty string name1 = ""; // Init name2 to empty string name2 = "";

// Read next line in first file and store line in name1 name1 = fileScan1.nextLine();

// Read next line in second file and store line in name2 name2 = fileScan2.nextLine();

// IF (name1 is the same as name2) if (name1.equals(name2)) { // Send both names to output file output.println(name1 + " "); output.println(name2 + " "); }

// ELSE (the two names aren't the same) else { // Set ifOutputted = false ifOutputted = false;

// WHILE (a name has not been sent to output file) while (!ifOutputted) {

// Init char at name1 is char at count position for name1 charName1 = name1.charAt(count);

// Init char at name2 is char at count position for name2 charName2 = name2.charAt(count);

// IF (char in name1 is alphabetically before first char in name2) if (charName1 > charName2) { // Send name1 to output file output.println(name1 + " ");

// Set if outputted equal to true ifOutputted = true; }

else if (charName2 > charName1) { // Send name2 to output file output.println(name2);

// Set if outputted equal to true ifOutputted = true; }

else { // Increment count count++; }// END IF

}// END WHILE }// END IF

}// END WHILE

//close the files for writing output.close(); fileScan1.close(); fileScan2.close();

// Input name of first file System.out.println(" \t\t\tInput first file name or enter -1 to quit: "); firstFile = scan.nextLine(); }// END WHILE

}// END TRY

// CATCH (IOexception) catch (IOException io) { System.out.println("Error reading/writing file: " + io.getMessage()); }// END CATCH

}

} The issue is I am not getting an output, if anyone could help me out that would be greatly appreciated