### Question:
StaxPoiSheet implements KSheet { @Override public KCell getCell( int colnr, int rownr ) { if ( rownr == 0 && colnr < headerRow.size() ) { return new StaxPoiCell( headerRow.get( colnr ), rownr ); } KCell[] row = getRow( rownr ); if ( row != null && rownr < row.length ) { return row[colnr]; } return null; } StaxPoiSheet( XSSFReader reader, String sheetName, String sheetID ); @Override KCell[] getRow( int rownr ); @Override String getName(); @Override int getRows(); @Override KCell getCell( int colnr, int rownr ); void close();  }### Answer:
@Test public void testReadCells() throws Exception { KSheet sheet = getSampleSheet(); KCell cell = sheet.getCell( 1, 2 ); assertEquals( "One", cell.getValue() ); assertEquals( KCellType.LABEL, cell.getType() ); cell = sheet.getCell( 2, 2 ); assertEquals( KCellType.DATE, cell.getType() ); assertEquals( new Date( 1283817600000L ), cell.getValue() ); cell = sheet.getCell( 1, 3 ); assertEquals( "Two", cell.getValue() ); assertEquals( KCellType.LABEL, cell.getType() ); }