Save Any format file using JFileChooser in Swing

Question

I had open a file using JFileChooser . Now I also want to save that file in a computer directory by JFileChooser . How can I save it?

Currently my code is just providing UI but it doesn't have saving functionality.

package javaapplication1;

import java.awt.image.RenderedImage;
import java.io.File;
import javax.imageio.ImageIO;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileNameExtensionFilter;

/**
 *
 * @author KHAN
 */
public class NewJFrame extends javax.swing.JFrame {

    /**
     * Creates new form NewJFrame
     */
    public NewJFrame() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jTextField1 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jTextField2 = new javax.swing.JTextField();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jButton1.setText("Browse");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("Save to");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(55, 55, 55)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(jTextField2, javax.swing.GroupLayout.DEFAULT_SIZE, 191, Short.MAX_VALUE)
                    .addComponent(jTextField1))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 69, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(29, 29, 29)
                        .addComponent(jButton2)))
                .addContainerGap(56, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(87, 87, 87)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton1))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(29, 29, 29)
                        .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(44, 44, 44)
                        .addComponent(jButton2)))
                .addContainerGap(123, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>                        

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        JFileChooser chooser = new JFileChooser();

        if (JFileChooser.APPROVE_OPTION == chooser.showSaveDialog(null)) {
            File file = chooser.getSelectedFile();
            file.getAbsoluteFile();
        }

    }                                        

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        JFileChooser chooser=new JFileChooser();
        FileFilter filter=new FileNameExtensionFilter("JPEG file", "jpg" , "jpeg" , "pdf" , "txt" ,"png");
        chooser.showOpenDialog(null);
        File f=chooser.getSelectedFile();
        String filename=f.getAbsolutePath();
        jTextField1.setText(filename);
        jTextField2.setText(filename);

    }                                        

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
          NewJFrame sfc = new NewJFrame();
    sfc.setVisible(true);

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new NewJFrame().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    // End of variables declaration                   
}

 //Eddited private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { JFileChooser chooser = new JFileChooser(); if (JFileChooser.APPROVE_OPTION == chooser.showSaveDialog(null)) { File file = chooser.getSelectedFile(); file.getAbsoluteFile(); } } private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { JFileChooser chooser=new JFileChooser(); FileFilter filter=new FileNameExtensionFilter("JPEG file", "jpg" , "jpeg" , "pdf" , "txt" ,"png"); chooser.showOpenDialog(null); File f=chooser.getSelectedFile(); String filename=f.getAbsolutePath(); jTextField1.setText(filename); jTextField2.setText(filename); }

Answer 1

It seems you want to save an image. For that, use ImageIO.write(RenderedImage,String,File) :

Writes an image using an arbitrary ImageWriter that supports the given format to a File . If there is already a File present, its contents are discarded.

Answer 2

You have to write to it yourself. See FileOutputStream and Java NIO