Java JFileChooser selectAndSaveToFile(String content, Component parent)

Description

Show dialog for selecting a file and write file content to file

License

Open Source License

Parameter

Parameter	Description
content	Content which should be written to a file
parent	Reference to parent component (can be null)

Exception

Parameter	Description
IOException	Throws an IOException when file is not accessible or when anerror occurred during the write process

Declaration

public static void selectAndSaveToFile(String content, Component parent) throws IOException 

Method Source Code

//package com.java2s;
// License as published by the Free Software Foundation; either

import java.awt.Component;

import java.io.BufferedWriter;
import java.io.File;

import java.io.FileWriter;
import java.io.IOException;

import java.io.Writer;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

public class Main {
    /**//  w w w  .jav a  2  s . c  o m
     * Show dialog for selecting a file and write file content to file
     * 
     * @param content
     *            Content which should be written to a file
     * 
     * @param parent
     *            Reference to parent component (can be null)
     * 
     * @throws IOException
     *             Throws an IOException when file is not accessible or when an
     *             error occurred during the write process
     */
    public static void selectAndSaveToFile(String content, Component parent) throws IOException {
        // Create file save dialog
        @SuppressWarnings("serial")
        JFileChooser fileSaveDialog = new JFileChooser() {
            @Override
            public void approveSelection() {
                File f = getSelectedFile();
                if (f.exists() && getDialogType() == SAVE_DIALOG) {
                    int result = JOptionPane.showConfirmDialog(this, "File already exists, overwrite?",
                            "Existing file", JOptionPane.YES_NO_OPTION);
                    switch (result) {
                    case JOptionPane.YES_OPTION:
                        super.approveSelection();
                        return;
                    case JOptionPane.NO_OPTION:
                        return;
                    }
                }
                super.approveSelection();
            }
        };
        fileSaveDialog.setFileSelectionMode(JFileChooser.FILES_ONLY);

        // Show file save dialog and write content to file
        int dialogResult = fileSaveDialog.showSaveDialog(parent);
        if (dialogResult == JFileChooser.APPROVE_OPTION) {
            File file = fileSaveDialog.getSelectedFile();

            // Open file for writing and write content
            writeToFile(new FileWriter(file), content);
        }
    }

    /**
     * Directly writes content to a given writer object
     * 
     * @param writer
     *            A writer object
     * 
     * @param content
     *            Content which should be written
     * 
     * @throws IOException
     *             Throws an IOException when an error occurred during the write
     *             process
     */
    private static void writeToFile(Writer writer, String content) throws IOException {
        BufferedWriter bufferedWriter = new BufferedWriter(writer);

        // Write content and close steam
        bufferedWriter.write(content);
        bufferedWriter.close();
    }
}

Related

1. saveFile(String title, File currentDir, javax.swing.filechooser.FileFilter filter)
2. saveObject(final Object content, final String description, final String extension, final File file)
3. saveSystemFiles(Component owner)
4. saveToFile(Object obj)
5. select_file(Component parent, boolean show_save)
6. selectDirectory(Component component, String name, File pathToUse)
7. selectedFiles(JFileChooser chooser)
8. selectFile(boolean exitOnCancel)
9. selectFile(Component parent, boolean isOpen)