package javaapplication21;

import java.io.IOException;
import java.io.RandomAccessFile;

/**
 *
 * @author MDLejTeCole
 */
public class JavaApplication21
{
    public static void emerytura(String text) throws IOException
    {
        RandomAccessFile raw = null;
        String gw="";
        long wskaznik2;
        char plec;
        String imie ="";
        String nazwisko;
        int wiek;
        try
        {
            raw = new RandomAccessFile(text,"rw");
            raw.writeUTF("Mam");
            raw.writeUTF("Java");
            raw.writeChar('K');
            raw.writeInt(35);

            raw.writeUTF("Wak");
            raw.writeUTF("Paw");
            raw.writeChar('K');
            raw.writeInt(59);

            raw.writeUTF("Draw");
            raw.writeUTF("Ciach");
            raw.writeChar('M');
            raw.writeInt(59);

            raw.writeUTF("Mam");
            raw.writeUTF("Java");
            raw.writeChar('M');
            raw.writeInt(54);

            raw.writeUTF("Zaam");
            raw.writeUTF("Wa");
            raw.writeChar('K');
            raw.writeInt(38);

            //gw = raw.readLine();
            while(true)
            {
                //System.out.print("Siema");
                imie = raw.readUTF();
                nazwisko = raw.readUTF();
                plec = raw.readChar();
                wskaznik2 = raw.getFilePointer();
                wiek = raw.readInt();

                if(plec == 'K')
                {
                    raw.seek(wskaznik2);
                    wiek = 60 - wiek;
                }
                if(plec == 'M')
                {
                    raw.seek(wskaznik2);
                    wiek = 65 - wiek;
                }
                //gw = raw.readLine();
            }
        }
        catch(IOException ex)
        {
            System.out.print("bląd");
            ex.getStackTrace();
        }
        finally
        {
            if (raw != null)
            {
                raw.close();
            }
        }
    }
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException{
        emerytura("siemaa.txt");
        // TODO code application logic here
    }

}