(Java) Clase para manipulación de archivos

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/**
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 * To change this template, choose Tools | Templates
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 * and open the template in the editor.
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 */
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.io.RandomAccessFile;
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/**  *  * @author ALUMNOS  */
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public class fileManagement {
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    protected String filePath;
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    protected PrintWriter writer;
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    protected FileReader fReader;
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    protected BufferedReader bReader;
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    protected FileOutputStream fos;
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    protected FileInputStream fis;
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    protected RandomAccessFile ioFile;
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    public fileManagement(String pathName) throws FileNotFoundException {
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        this.setFilePath(pathName);
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        writer = new PrintWriter(filePath);
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        fReader = new FileReader(filePath);
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        bReader = new BufferedReader(fReader);
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        fos = new FileOutputStream(filePath);
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        fis = new FileInputStream(filePath);
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        ioFile = new RandomAccessFile(pathName, "rw");
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    }
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    public fileManagement(File f) throws FileNotFoundException {
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        writer = new PrintWriter(f);
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        fReader = new FileReader(f);
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        bReader = new BufferedReader(fReader);
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        fos = new FileOutputStream(f);
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        fis = new FileInputStream(f);
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        ioFile = new RandomAccessFile(f, "rw");
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    }
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    public void writeBytes(byte[] data, int off, int len) throws IOException {
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        ioFile.seek(off);
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        ioFile.write(data);
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    }
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    public byte[] readBytes(int off, int len) throws IOException {
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        byte[] b = new byte[len];
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        ioFile.seek(off);
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        ioFile.read(b);
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        return b;
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    }
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    public String readLine() throws IOException {
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        return bReader.readLine();
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    }
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    public void writeLine(String data) throws IOException {
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        writer.println(data);
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    }
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    public void setFilePath(String pathName) {
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        this.filePath = pathName;
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    }
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    public String getFilePath() {
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        return this.filePath;
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    }
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}