Method write

src/org/opensourcephysics/tools/DataTool.java:2276–2316

Writes text to a file with the specified name. @param text the text @param fileName the file name @return the path of the saved document or null if failed

(String text, String fileName)

	 * @return the path of the saved document or null if failed
	 */
	protected static String write(String text, String fileName) {
		int n = fileName.lastIndexOf("/"); //$NON-NLS-1$
		if (n < 0) {
			n = fileName.lastIndexOf("\\"); //$NON-NLS-1$
		}
		if (n > 0) {
			String dir = fileName.substring(0, n + 1);
			File file = new File(dir);
			if (!file.exists() && !file.mkdir()) {
				return null;
			}
		}
		try {
			File file = new File(fileName);
			// check to see if file already exists
			if (file.exists()) {
				if (!file.canWrite()) {
					JOptionPane.showMessageDialog(null, ControlsRes.getString("Dialog.ReadOnly.Message"), //$NON-NLS-1$
							ControlsRes.getString("Dialog.ReadOnly.Title"), //$NON-NLS-1$
							JOptionPane.PLAIN_MESSAGE);
					return null;
				}
				int selected = JOptionPane.showConfirmDialog(null,
						ToolsRes.getString("Tool.Dialog.ReplaceFile.Message") + " " + file.getName() + "?", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
						ToolsRes.getString("Tool.Dialog.ReplaceFile.Title"), //$NON-NLS-1$
						JOptionPane.YES_NO_CANCEL_OPTION);
				if (selected != JOptionPane.YES_OPTION) {
					return null;
				}
			}
			FileOutputStream stream = new FileOutputStream(file);
			java.nio.charset.Charset charset = java.nio.charset.Charset.forName("UTF-8"); //$NON-NLS-1$
			write(text, new OutputStreamWriter(stream, charset));
			if (file.exists()) {
				return file.getAbsolutePath();
			}
		} catch (IOException ex) {
			ex.printStackTrace();
		}
		return null;
	}

	/**
	 * Writes text to a Writer.