EveryOther

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

public class EveryOther {
    public static void main(String args[]) throws FileNotFoundException {
        File inputFile = new File("inputfile.txt");
        File outputFile = new File("outputfile.txt");
        Scanner keyboard = new Scanner(System.in);
        Scanner fileScan = new Scanner(inputFile);
        PrintWriter input = new PrintWriter(inputFile);
        PrintWriter output = new PrintWriter(outputFile);

        String keyInput = "";
        String hold1 = "";
        String hold2 = "";
        String hold3 = "";
        String custom = "";

        System.out.println("Type first a custom symbol and then whatever and then to stop type a plus sign");
        keyboard.useDelimiter("");

        hold1 = keyboard.next();
        custom = hold1;

        while(!hold1.equals("+")){
            keyInput += hold1;
            hold1 = keyboard.next();
        }

        keyboard.close();
        input.write(keyInput);
        input.close();

        while(fileScan.hasNextLine()){
            hold2 = fileScan.nextLine();
            int lngth = hold2.length();
            int k = 0;

            while(k < lngth) {

                if(hold2.substring(k, k + 1).equals(" ")) {
                    output.write(custom);
                    k++;
                } else {
                    output.write(hold2.substring(k, k + 1));
                    k++;
                }

            }
            output.write(custom);

        }

        fileScan.close();
        output.close();
    }
}