I have a question about Apache Commons IO with Java.

The excercice is to read a text file without using Commons IO, and then using it.

For the first one, my code is this, and this works:

import java.util.Scanner;

public class ReadBook {
private Scanner line;
public void openFile(){
    try{
        line= new Scanner(new File("books.txt"));
    }
catch(Exception e){
        System.out.println("File not found");
}
}

public void readFile() {
    while (line.hasNext()) {
    String book = line.next();
    System.out.println(book);
    }
}
    public void closeFile(){
         line.close();
    }

}

and the main class:

public class mainClass {
    public static void main(String[] args){
        ReadBook book = new ReadBook();
        book.openFile();
        book.readFile();
        book.closeFile();
    }
}

The teacher gave us this class, and now we are supposed to do the same thing with the Apache Commons IO library.

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;

public class Utf8File {

    public static String loadFileIntoString(String filePath) throws FileNotFoundException, IOException {
        return IOUtils.toString(new FileInputStream(filePath), "UTF-8");
    }
    
    public static void saveStringIntoFile(String filePath, String content) throws IOException {
        File f = new File(filePath);
        FileUtils.writeStringToFile(f, content, "UTF-8");
    }
}

I was wondering, do you know how to do it?

Last time I programmed with Java was one year ago hahaha so it is a little bit far away in my memory :O

This is the first homework to do (today was the first class).

I hope someone can help me :)

Thanks!