I want to make an "Open" and "Save" dialog in java. An example of what I want is in the images below:
Open:
Save:
How would I go about doing this?
- 20The question is valid; don't downvote just because someone is not a native English speaker. Instead post a comment how to improve the question.Aaron Digulla– Aaron Digulla2010-08-23 13:48:31 +00:00Commented Aug 23, 2010 at 13:48
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6 Answers
You want to use a JFileChooser object. It will open and be modal, and block in the thread that opened it until you choose a file.
Open:
JFileChooser fileChooser = new JFileChooser(); if (fileChooser.showOpenDialog(modalToComponent) == JFileChooser.APPROVE_OPTION) { File file = fileChooser.getSelectedFile(); // load from file } Save:
JFileChooser fileChooser = new JFileChooser(); if (fileChooser.showSaveDialog(modalToComponent) == JFileChooser.APPROVE_OPTION) { File file = fileChooser.getSelectedFile(); // save to file } There are more options you can set to set the file name extension filter, or the current directory. See the API for the javax.swing.JFileChooser for details. There is also a page for "How to Use File Choosers" on Oracle's site:
http://download.oracle.com/javase/tutorial/uiswing/components/filechooser.html
2 Comments
Erick Robertson
Whatever component you want it to be modal to goes there.
AO_
@Arnold: Or just replace
modalToComponent to nullI would suggest looking into javax.swing.JFileChooser
Here is a site with some examples in using as both 'Open' and 'Save'. http://www.java2s.com/Code/Java/Swing-JFC/DemonstrationofFiledialogboxes.htm
This will be much less work than implementing for yourself.
Comments
Maybe you could take a look at JFileChooser, which allow you to use native dialogs in one line of code.
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You can find an introduction to file dialogs in the Java Tutorials. Java2s also has some example code.
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First off, you'll want to go through Oracle's tutorial to learn how to do basic I/O in Java.
After that, you will want to look at the tutorial on how to use a file chooser.
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You may also want to consider the possibility of using SWT (another Java GUI library). Pros and cons of each are listed at:
