怎么把变化的数据直观显示出来？

Question

文本中数据不断再变化，java程序取出数据，用曲线显示
问题
一、怎么自动循环取数据？二、用Swing怎么显示数据？谁有这样相似的代码给参考下，谢谢

Answer 1

swing 不是有2D 么？ 直接画图就行了，哈哈

Answer 2

private static JFreeChart createChart(XYDataset dataset) {        JFreeChart chart = ChartFactory.createTimeSeriesChart(//.createStackedXYAreaChart(
                dirName + Strname + "数据性能", // title
                "时间 " + MonthandDay, // x-axis label
                "百分比", // y-axis label
                dataset, // data
                //    PlotOrientation.VERTICAL,
                true, // create legend?
                true, // generate tooltips?
                false               // generate URLs?
        );
        MonthandDay = "";
        XYPlot plot = (XYPlot) chart.getPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);
        plot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));        plot.setDomainCrosshairVisible(true);
        plot.setRangeCrosshairVisible(true);
        ValueAxis rangeAxis = plot.getRangeAxis();
        rangeAxis.setRange(new Range(0, 100));    //设置y轴
        plot.setRangeAxis(rangeAxis);
        XYItemRenderer r = plot.getRenderer();
        if (r instanceof XYLineAndShapeRenderer) {
            XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r;
            renderer.setDrawOutlines(true);
            renderer.setDefaultShapesVisible(false);
            renderer.setSeriesStroke(0, new BasicStroke(1.5F, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
            renderer.setSeriesStroke(1, new BasicStroke(1.5F, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER));
            renderer.setSeriesStroke(2, new BasicStroke(1.5F, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_ROUND));
            plot.setRenderer(renderer);        }
        DateAxis axis = (DateAxis) plot.getDomainAxis();
        axis.setDateFormatOverride(new SimpleDateFormat("HH:mm"));
        return chart;