Method readFirstLine

src/org/opensourcephysics/tools/DataTool.java:1459–1482

(Reader in)

	// ______________________________ protected methods ________________________
	protected String readFirstLine(Reader in) {
		BufferedReader input = null;
		if (in instanceof BufferedReader) {
			input = (BufferedReader) in;
		} else {
			input = new BufferedReader(in);
		}
		String openingLine;
		try {
			openingLine = input.readLine();
			while ((openingLine == null) || openingLine.equals("")) { //$NON-NLS-1$
				openingLine = input.readLine();
			}
		} catch (IOException e) {
			e.printStackTrace();
			return null;
		}
		try {
			input.close();
		} catch (IOException ex) {
			ex.printStackTrace();
		}
		return openingLine;
	}

	protected void setupDelimiterMenu(JMenu menu) {
		Action setDelimiterAction = new AbstractAction() {