Check file extension in Java

Question

I have to import data from an Excel file to database and to do this, I would like to check the extension of the chosen file.

This is my code:

String          


        

Answer 1

You can use Apache Commons Api to check the file extension

String filename = file.getName();
if(!FilenameUtils.isExtension(filename,"xls")){
  JOptionPane.showMessageDialog(null, "Choose an excel file!");
}

http://commons.apache.org/io/api-release/index.html?org/apache/commons/io/package-summary.html