package poi;import static org.junit.Assert.*;import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import java.util.Arrays;import java.util.Collection;import java.util.List;import org.apache.poi.ss.usermodel.Row;import org.apache.poi.ss.usermodel.Sheet;import org.apache.poi.ss.usermodel.Workbook;import org.apache.poi.xssf.usermodel.XSSFWorkbook;import org.junit.Test;import org.junit.runner.RunWith;import org.junit.runners.Parameterized;import org.junit.runners.Parameterized.Parameters;@RunWith(value=Parameterized.class)public class TestIterator {    public TestIterator(Integer times) {    }        @Parameters    public static Collection
     
       init(){        int times=200;        Integer[][] parameters=new Integer[times][1];        for (int i = 0; i < times; i++) {            parameters[i][0]=i;        }        return Arrays.asList(parameters);    }        @Test    public void  testItertor() throws IOException{        List
      
        expected=new ArrayList
       
        ();//rowNums.need to change according to demand        for (int i = 0; i <=1 ; i++) {            expected.add(i);        }        expected.add(3);        expected.add(4);        expected.add(6);                        List
        
          actual=new ArrayList
         
          ();                String filePath="/poi/test.xlsx";        InputStream is=this.getClass().getResourceAsStream(filePath);        Workbook wb=new XSSFWorkbook(is);        Sheet sheet=wb.getSheetAt(0);        for (Row row : sheet) {            actual.add(row.getRowNum());        }                assertEquals(expected, actual);    }}
         
        
       
      
     

private TreeMap
     
       _rows;
     

/**     * @return an iterator of the PHYSICAL rows.  Meaning the 3rd element may not     * be the third row if say for instance the second row is undefined.     * Call getRowNum() on each row if you care which one it is.     */    @SuppressWarnings("unchecked")    public Iterator
     
       rowIterator() {        return (Iterator
      
       )(Iterator
       ) _rows.values().iterator();    }    /**     * Alias for {
    @link #rowIterator()} to     *  allow foreach loops     */    public Iterator
       
         iterator() {        return rowIterator();    }