import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.NoSuchFileException;
import java.nio.file.Path;

public class PulihkanInput {
    public static void main(String[] args) throws IOException {
        Path input = Path.of("pengaturan.txt");
        String isi;

        try {
            isi = Files.readString(input, StandardCharsets.UTF_8);
            System.out.println("sumber        : berkas");
        } catch (NoSuchFileException e) {
            isi = "mode=wajar\n";
            Files.writeString(input, isi, StandardCharsets.UTF_8);
            System.out.println("sumber        : bawaan, berkas dibuat");
        }
        System.out.println("isi           : " + isi.lines().findFirst().orElse(""));
    }
}