```java
import java.io.*;
import java.util.ArrayList;

public class FileProcessor {

    public static void main(String[] args) {
        String filePath = "chemin/vers/votre/fichier.txt";
        String[] contentToWrite = {"Première ligne", "Deuxième ligne", "Troisième ligne"};

        try {
            writeFile(filePath, contentToWrite);
            String[] fileContent = readFile(filePath);
            for (String line : fileContent) {
                System.out.println(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void writeFile(String filePath, String[] content) throws IOException {
        BufferedWriter writer = new BufferedWriter(new FileWriter(filePath));
        for (String line : content) {
            writer.write(line);
            writer.newLine();
        }
        writer.close();
    }

    public static String[] readFile(String filePath) throws IOException {
        ArrayList<String> lines = new ArrayList<>();
        BufferedReader reader = new BufferedReader(new FileReader(filePath));
        String line;
        while ((line = reader.readLine()) != null) {
            lines.add(line);
        }
        reader.close();
        return lines.toArray(new String[0]);
    }
}