Java.IO #2

package Advanced;

import java.io.*;
import java.util.Random;

public class MainIO {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        try {

            //1. feladat
            ObjectOutputStream IOExample11 = new ObjectOutputStream (new FileOutputStream ("d:/zimmgy/AIOex1.bin"));
            Random R = new Random();
            int[] Marks;
            String[] ListNames =  new String[]{"Zimmermann Gyula", "Graion Dilach", "Junichi Nakatsuru"};
            Tanulo[] ListTanulos = new Tanulo[ListNames.length];
            for (int j = 0; j<ListTanulos.length; j++){
                Marks = new int[4];
                for (int i = 0; i < 4; i++) {
                    do {
                        Marks[i] = (R.nextInt()%5)+1;
                    } while (Marks[i] < 1);
                }
                ListTanulos[j] = new Tanulo(ListNames[j], Marks);
                System.out.println(ListTanulos[j].toString());
                IOExample11.writeObject(ListTanulos[j]);
            }
            IOExample11.close();
            ObjectInputStream IOExample12 = new ObjectInputStream (new FileInputStream ("d:/zimmgy/AIOex1.bin"));

            for (int j = 0; j < ListTanulos.length; j++){
                System.out.println(((Tanulo)(IOExample12.readObject())).toString());
            }


            //2. feladat
            //todo- EOL hülye --'
            StreamTokenizer IOExample2 = new StreamTokenizer (new FileReader ("d:/zimmgy/AIOex1.bin"));
            int WordCount =0, NumberCount=0;
            int temp;
            while ((temp = IOExample2.nextToken()) != StreamTokenizer.TT_EOF){
                if(temp == StreamTokenizer.TT_WORD){
                    WordCount++;
                }else{
                    NumberCount++;
                }

            }

            System.out.println("Szavak száma: " + WordCount + ", számok száma : " + NumberCount);

            //3. feladat

            File Example = new File("d:/zimmgy");
            String[] StuffInIt = Example.list();
            for (int i=0; i<StuffInIt.length; i++){
                System.out.println(StuffInIt[i]);
            }

        }
        catch (Exception e){
            System.out.println ("Who cares, let's annihilate them!");
        }
    }

}


=============================================================================================

package Advanced;

import java.io.Serializable;

@SuppressWarnings("serial")
public class Tanulo implements Serializable{

    String Name;
    int[] Marks;

    Tanulo (String _Name, int[] _Marks){
        Name = _Name;
        Marks = _Marks;
        }

    public String toString(){
        return Name + ", jegyei: " + Marks[0] + ", " + Marks[1]
                + ", " + Marks[2] + ", " + Marks[3] + ", ";
    }

}