Core Java Programming Course- Writing MS Excel Data using POI

The video tutorial explains how to create an Excel file using Java, add a sheet, and input data. It covers setting up workbook and sheet objects, adding data to cells, and using loops to create a multiplication table. The tutorial also discusses saving the file and handling existing data.

What is the first step in creating an Excel file in Java?

• Add data to a cell

• Create a file output stream

• Close the workbook

• Instantiate a workbook object

Which method is used to add data to a cell in an Excel sheet?

• setCellValue

• addCellData

• writeCellValue

• setCellData

What is the purpose of a file output stream in this context?

• To delete an Excel file

• To read data from an Excel file

• To write data to an Excel file

• To create a new Excel file

How many iterations does the outer loop run to create rows for the multiplication table?

• 10

• 5

• 15

• 20

What is the role of the inner loop in creating the multiplication table?

• To add data to the workbook

• To close the file stream

• To create rows

• To create columns

When writing to an existing Excel file, what must be done if the target row does not exist?

• Create a new row

• Delete the existing file

• Close the workbook

• Overwrite the existing data

What should be done if you want to overwrite data in an existing cell?

• Create a new row

• Simply overwrite the data

• Delete the existing cell

• Create a new workbook