import java.util.*;
import java.io.*;
import org.apache.poi.poifs.filesystem.*;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.hssf.util.*;

public class MergedRegionTest {

  public static void main(String[] args) throws Exception {

    HSSFWorkbook wb = new HSSFWorkbook();
    HSSFSheet sheet = wb.createSheet();

    for (int y = 0; y < 5; y++) {
      HSSFRow row = sheet.createRow(y);
      for (short x = 0; x < 5; x++) {
	HSSFCell cell = row.createCell(x);
	cell.setCellValue(x + ":" + y);
	cell.setCellType(HSSFCell.CELL_TYPE_STRING);
      }
    }

    Region r1 = new Region(2, (short) 0, 2, (short) 4);
    sheet.addMergedRegion(r1);
    Region r2 = new Region(0, (short) 2, 4, (short) 2);
    sheet.addMergedRegion(r2);

    FileOutputStream out = new FileOutputStream("test.xls");
    wb.write(out);
    out.flush();
    out.close();
  }
}