[Java] gestion des objets

echantillons = monSignal.getEchantillons();

double

System.out.println((double)Runtime.getRuntime().maxMemory()/Math.pow(2,20));

package utils;

import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

public class CsvWriter implements ConstantsAndTools {

    private File outputDir = new File(CSV_PATH);
    private File csvFile;
    private String fileName;
    private String headers;
    private FileWriter writer;
    private FileReader reader;

    public CsvWriter(String fileName, String headers) throws IOException {
        this.fileName = fileName;
        this.headers = headers;
        if (!outputDir.exists()) {
            outputDir.mkdir();
        }
        csvFile = new File(CSV_PATH + fileName + ".csv");
        if (!csvFile.exists()) {
//            csvFile.delete();
            csvFile.createNewFile();
        }
//        csvFile.createNewFile();

        writer = new FileWriter(csvFile, true);
        reader = new FileReader(csvFile);

    }

    public void writeNext(String data) throws IOException {
        if (reader.read() == -1) {
            writer.append(headers + "\n");
        }

        writer.append(data + "\n");
        writer.flush();
    }

    public void closeWriter() {
        try {
            writer.close();
        } catch (IOException ex) {
            Logger.getLogger(CsvWriter.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    public String getFileName() {
        return fileName;
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package csvoutput;

import java.io.IOException;
import utils.ConstantsAndTools;
import utils.CsvWriter;

import wavfilesmanagement.SoundFrame;

/**
 *
 * @author id825759
 */
public class WriteFrameDataToCSV implements ConstantsAndTools {

    private String separator = ";";
    private String headers = "FrameNumber;"
            + "DyspE;"
            + "WindowE;"
            + "OptimalShift;";
    private String fileName = CSV_FILE_NAME;

    public WriteFrameDataToCSV(SoundFrame sf) throws IOException {
        CsvWriter wicf = new CsvWriter(fileName, headers);
        fileName = wicf.getFileName();

        String rowString = generateRfdDetailsCSVFileRow(sf);
        wicf.writeNext(rowString);

        wicf.closeWriter();
    }

    private String replaceUndesirableCharacters(String favoriteName) {

        favoriteName = favoriteName.replace('/', '_');
        //favoriteName = favoriteName.replace('\', '_');
        favoriteName = favoriteName.replace(':', '-');
        favoriteName = favoriteName.replace('*', '_');
        favoriteName = favoriteName.replace('?', '_');
        favoriteName = favoriteName.replace('"', '_');
        favoriteName = favoriteName.replace('<', '_');
        favoriteName = favoriteName.replace('>', '_');
        favoriteName = favoriteName.replace('|', '_');
        favoriteName = favoriteName.replace(' ', '_');

        return favoriteName;
    }

    private String generateRfdDetailsCSVFileRow(SoundFrame soundF) {
        String aString;


        aString = soundF.getFrameNumber() + separator
                + soundF.getDyspE() + separator
                + soundF.getWindowE() + separator
                + soundF.getOptimalShift() + separator;
        return aString;
    }

    public String getFileName() {
        return fileName;
    }
}