Please let me help to solve the error........

[milan777 <mi...@gmail.com>]

import java.io.IOException;

import jxl.CellType;
import jxl.Cell;
import jxl.Sheet;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class CreateNewWorkBook {

public static void main(String args[]) throws IOException
{
XSSFWorkbook wb = new XSSFWorkbook();
   
   Sheet sheet = (Sheet) wb.getSheet("d:/test.xlsx"); 

 try{
	 for (int i = 0; i < sheet.getRows(); i++) {
 
		System.out.println("");
		for (int j = 0; j < sheet.getColumns(); j++) {

			Cell cell = sheet.getCell(j, i);
			CellType type = cell.getType();
			if (type == CellType.LABEL) {
				System.out.print("\t lable "
						+ cell.getContents().trim());
			}

			if (type == CellType.NUMBER) {
			System.out.print("\t number " +
			cell.getContents().trim()); }
			 

		}
	}
 } catch(Exception e){
	 e.printStackTrace();
 }
 
}
}

getting error like nullpointer exception :( :(



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