Labor2

package de.marvin.oopLabor2;

public class Main {

    public static void main(String[] args)
    {
        MyFrameA ersteFenster = new MyFrameA();
        ersteFenster.setTitle(1111);
        MyFrameB zweitesFenster = new MyFrameB();
        zweitesFenster.setTitle(2013);
        new MyFrameC("zahlen",300,100);
    }
}

//-------------------------------------------------------

package de.marvin.oopLabor2;

import javax.swing.JFrame;

public class MyFrameA extends JFrame {

    private static final long serialVersionUID = 1L;

    MyFrameA()
    {
        this.setSize(200,200);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setLocation(300,300);
        this.setResizable(false);
        this.setVisible(true);
    }

    protected void setTitle(int titel)
    {
        this.setTitle(Integer.toString(titel));
    }

}

//-------------------------------------------------------

package de.marvin.oopLabor2;

import javax.swing.JLabel;
import javax.swing.JPanel;

public class MyFrameB extends MyFrameA {

    private static final long serialVersionUID = 1L;

    MyFrameB()
    {
        this.setLocation(600,300);
        this.setLabels();
    }

    protected void setLabels()
    {
        JPanel FensterInFenster = new JPanel();
        FensterInFenster.add(new JLabel("Hallo Flensburg"));
        FensterInFenster.add(new JLabel("Hallo Deutschland"));
        FensterInFenster.add(new JLabel("Hallo Welt"));
        this.add(FensterInFenster);
    }

    protected void setTitle(int titel)
    {
        this.setTitle(Integer.toString(titel));
    }

}

//-------------------------------------------------------

package de.marvin.oopLabor2;

import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class MyFrameC extends MyFrameA {

    private static final long serialVersionUID = 1L;

    MyFrameC(String title,int groesse,int anzahlDerWerte)
    {
        this.setSize(groesse,groesse);
        this.setLocation(900,300);
        this.setTitle(title);
        this.setLayout(new FlowLayout());
        this.unsereLabels(anzahlDerWerte,this);
    }

    protected void unsereLabels(int anzahlDerWerte,JFrame meinFenster)
    {
        JLabel[] vieleFenster = new JLabel[anzahlDerWerte+1];

        for(int i =1;i < vieleFenster.length;i++)
        {
            if(i%2==0)
            {
                vieleFenster[i] = new JLabel(Integer.toString(i));
                meinFenster.add(vieleFenster[i]);
            }
        }
    }

    protected void setTitle(int titel)
    {
        this.setTitle(Integer.toString(titel));
    }

}