Java: Opgave 2 Miniproject

package Miniproject;
import javax.swing.*;

import java.awt.event.*;
import java.awt.*;
import javax.swing.RowFilter;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.Document;


import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JTextField;

public class Opgave2 extends JInternalFrame{
    static int openFrameCount = 0;
    static final int xOffset = 30, yOffset = 30;
    private Object gegevens1[][],gegevens2[][];
    private String[] kolomnamen,kolomnamen1,kolomnamen2;
    private Object[][] gegevens;
    private JButton knop1;
  private JTextField tf;
  final TableRowSorter<TableModel> sorter;


    public Opgave2() {
        super("Opgave 2." + (++openFrameCount),
              true, //resizable
              true, //closable
              true, //maximizable
              true);//iconifiable

        //...Create the GUI and put it in the window...


        //...Then set the window size or call pack...
        setSize(600,510);

        //Set the window's location.
        setLocation(xOffset*openFrameCount, yOffset*openFrameCount);

        setVisible(true);

        Connectie con1 = new Connectie("opgavea","uitslagcodes");
        Connectie con2 = new Connectie("opgavea","wedstrijden");

        con1.maakConnectie();
        con2.maakConnectie();

        gegevens1 = con1.haalGegevensOp();
        gegevens2 = con2.haalGegevensOp();
        kolomnamen1 = con1.haalKolomNamenOp();
        kolomnamen2 = con2.haalKolomNamenOp();

        kolomnamen = new String[kolomnamen1.length + kolomnamen2.length];
        System.out.println(kolomnamen1.length + kolomnamen2.length);


        for (int k = 0; k<kolomnamen.length;k++){
        	if(k<kolomnamen2.length)
        		kolomnamen[k]=kolomnamen2[k];
        	else
        		kolomnamen[k]=kolomnamen1[k-kolomnamen2.length];
        }




        gegevens = new Object[gegevens2.length+1][gegevens1[0].length+gegevens2[0].length];
        int lengte = gegevens1[0].length+gegevens2[0].length;


        for(int j = 0; j< (gegevens2.length);j++){


        for(int i = 0; i<lengte;i++){

        	if (i<gegevens2[0].length){


        	gegevens[j][i]=gegevens2[j][i];}

        	else
        	{ int ii = (i-(gegevens2[0].length));


        	int overeen = Integer.parseInt(gegevens2[j][4].toString());


        	gegevens[j][i]=gegevens1[overeen-1][ii];

        	}


        }
    }


       JTable tabel = new JTable(gegevens, kolomnamen);
       TableModel model = new DefaultTableModel(gegevens, kolomnamen);

       setLayout(new BorderLayout());
       add(tabel.getTableHeader(), BorderLayout.PAGE_START);
       add(tabel, BorderLayout.CENTER);


       DocumentListener documentListener = new DocumentListener() {
    	      public void changedUpdate(DocumentEvent documentEvent) {
    	    	  String text = tf.getText();
    	          if (text.length() == 0) {
    	            sorter.setRowFilter(null);
    	          } else {
    	            sorter.setRowFilter(RowFilter.regexFilter(text,0));
    	          }
    	      }
    	      public void insertUpdate(DocumentEvent documentEvent) {
    	    	  String text = tf.getText();
    	          if (text.length() == 0) {
    	            sorter.setRowFilter(null);
    	          } else {
    	            sorter.setRowFilter(RowFilter.regexFilter(text,0));
    	          }
    	      }
    	      public void removeUpdate(DocumentEvent documentEvent) {
    	    	  String text = tf.getText();
    	          if (text.length() == 0) {
    	            sorter.setRowFilter(null);
    	          } else {
    	            sorter.setRowFilter(RowFilter.regexFilter(text,0));
    	          }
    	      }

    	    };


       tf = new JTextField();
       tf.requestFocus();
       tf.getDocument().addDocumentListener(documentListener);


       JPanel panel = new JPanel();


       panel.setLayout(new GridLayout(1, 2, 4 ,6));





      Label lb = new Label("filter tekst");
      panel.add(lb);
       panel.add(tf);
       add(panel, BorderLayout.SOUTH);

       sorter = new TableRowSorter<TableModel>(model);
       tabel.setRowSorter(sorter);



    }











}