Lettura e scrittura da file

FileTest.java

package fileio;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class FileTest {
    public static final String FILENAME = "pippo.txt";

    //    public static void main(String[] args) throws FileNotFoundException {
//        FileReader fileReader = new FileReader(FILENAME);
//    }
    public static void main(String[] args) {
        try {
            var fileReader = new BufferedReader(new FileReader(FILENAME));
            //System.out.println(fileReader.readLine());

            String line = fileReader.readLine();
            while( line != null) {
                System.out.println(line);
                line = fileReader.readLine();
            } ;
        } catch (FileNotFoundException e) {
            System.out.println("File non trovato");
        } catch (IOException e) {
            System.out.println("errore I/O");
        }
    }
}

NewFileTest.java

package fileio;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;

public class NewFileTest {
    public static final String FILENAME = "pippo.txt";

    public static void main(String[] args) {
        var path = Path.of(FILENAME);

        try {
            var fileReader = Files.newBufferedReader(path);
            System.out.println(path);
            String line = fileReader.readLine();
            while( line != null) {
                System.out.println(line);
                line = fileReader.readLine();
            } ;
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}