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package javaapplication2;

import java.util.ArrayList;
import javax.swing.*;
import javax.swing.table.*;
public class Test {
public static void main(String args[]) {
JFrame jf = new JFrame("Cell Combine Table");
JTable cTable = getTable2();
jf.getContentPane().add(new JScrollPane(cTable));
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setSize(500, 500);
jf.setVisible(true);
}
private static CombineTable getTable1() {
    String[][] datas = new String[10][6];
for (int i = 0; i < datas.length; i++) {
String[] data = datas[i];
for (int j = 0; j < data.length; j++) {
    data[j] = ""; }
data[0] = String.valueOf((int) (i / 3));
}
ArrayList<Integer> combineColumns = new ArrayList<Integer>();
combineColumns.add(0);
CombineData m = new CombineData(datas, combineColumns);
DefaultTableModel tm = new DefaultTableModel(datas, new String[]{"1", "2", "3", "4", "5"});
CombineTable cTable = new CombineTable(m, tm);
TableColumn column = cTable.getColumnModel().getColumn(0);
column.setCellRenderer(new CombineColumnRender());
column.setWidth(50);
column.setMaxWidth(50);
column.setMinWidth(50);
cTable.setCellSelectionEnabled(true);
return cTable;
}
private static CombineTable getTable2() {
    String[][] datas = new String[10][6];
for (int i = 0; i < datas.length; i++) {
String[] data = datas[i];
for (int j = 0; j < data.length; j++) {
    data[j] = ""; }
data[0] = String.valueOf((int) (i / 4));
data[1] = String.valueOf((int) (i / 2));
}
CombineData m = new CombineData(datas, 0, 1);
DefaultTableModel tm = new DefaultTableModel(datas, new String[]{"1", "2", "3", "4", "5"});
CombineTable cTable = new CombineTable(m, tm);
TableColumnModel columnModel = cTable.getColumnModel();
for (Integer integer : m.combineColumns) {
    TableColumn column = columnModel.getColumn(integer);
    column.setCellRenderer(new CombineColumnRender());
column.setWidth(50);
column.setMaxWidth(50);
column.setMinWidth(50);
}
cTable.setCellSelectionEnabled(true);
return cTable;
}
}