Question

*java question*

I have a program that needs to search if “of my” and “there” are in a text file but each answer (true or false) has to go into a different output file. if im only allowed to read the text file once is there a way to use scanner to read the text file once and print the answer into two different output files?

Answer 1

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

public class CheckInFile {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter input file name: ");
        File file = new File(in.nextLine());
        try {
            Scanner fin = new Scanner(file);
            PrintWriter pw1 = new PrintWriter("ofmy.txt");
            PrintWriter pw2 = new PrintWriter("there.txt");

            boolean ofmy = false, there = false;
            String line;
            while (fin.hasNextLine()) {
                line = fin.nextLine().toLowerCase();
                if (line.contains("of my")) {
                    ofmy = true;
                }
                if (line.contains("there")) {
                    there = true;
                }
            }

            if (ofmy) {
                pw1.println("of my is in " + file.getAbsolutePath());
            } else {
                pw1.println("of my is not in " + file.getAbsolutePath());
            }

            if (there) {
                pw2.println("there is in " + file.getAbsolutePath());
            } else {
                pw2.println("there is not in " + file.getAbsolutePath());
            }

            System.out.println("statuses of my and there have been written to ofmy.txt and there.txt");
            fin.close();
            pw1.close();
            pw2.close();
        } catch (FileNotFoundException e) {
            System.out.println(file.getAbsolutePath() + " is not found!");
        }
        in.close();
    }
}