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Abhinav Mishra
Linking an Excel File with the Application tool
0 Answer(s)      3 years and 2 months ago
Posted in : Java Beginners


I have to link an excel file with a application software which I am developing.I have this code which is only able to open a Jpanel to select the file.After I select the file nothing is happening.I wanted to be able to generate a template based on the questions that are in the excel file like extracting the questions from the excel file and creating a template from it which I have to upload on the web later.could you please help me with this?

import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.filechooser.*;


public class SelectFile extends JFrame{


    public static void main(String[]args){
                    JFrame frame = new JFrame();
                    frame.setLayout(null);

                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    frame.setTitle("Select File for Linking");
                    frame.setSize(400, 100);
                    Container container = frame.getContentPane();
                    container.setLayout(new GridBagLayout());

                    final JTextField text=new JTextField(20);

                    JButton b=new JButton("Select File");
                    text.setBounds(20,20,120,20);
                    b.setBounds(150,20,80,20);

                   // b.setText("<html><font color='blue'><u>Select File</u></font></html>");
                    b.setHorizontalAlignment(SwingConstants.LEFT);
                    //b.setBorderPainted(false);
                    //b.setOpaque(false);
                   // b.setBackground(Color.lightGray);
                    b.addActionListener(new ActionListener() {
                      public void actionPerformed(ActionEvent e){
                                JFileChooser fc = new JFileChooser();
                                fc.addChoosableFileFilter(new OnlyExt());

                                int returnval = fc.showOpenDialog(null);
                                if (returnval == JFileChooser.APPROVE_OPTION) {
                                File file = fc.getSelectedFile();
                                text.setText(file.getPath());
                                } 
                            }
                    });
                    container.add(text);
                    container.add(b);
                    frame.setVisible(true);
            }
    }
        class OnlyExt extends javax.swing.filechooser.FileFilter{
            public boolean accept(File file) {
        if (file.isDirectory()) return false;
        String name = file.getName().toLowerCase();
        return (name.endsWith(".xls"));
        }
        public String getDescription() { return "Excel ( *.xls)"; }
        }

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