使用来自输入流的字符串在XYLineChart(JFreeChart)上设置X轴

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.ui.ApplicationFrame;

import java.awt.*;

public class XYLineChartExample extends ApplicationFrame {

    public XYLineChartExample(String title) {
        super(title);

        // 创建数据集
        TimeSeries series = new TimeSeries("Data");
        series.add(new Day(1, 1, 2022), 100);
        series.add(new Day(2, 1, 2022), 150);
        series.add(new Day(3, 1, 2022), 200);
        TimeSeriesCollection dataset = new TimeSeriesCollection();
        dataset.addSeries(series);

        // 创建X轴
        DateAxis xAxis = new DateAxis("Date");

        // 创建绘图区域
        XYPlot plot = new XYPlot(dataset, xAxis, null, null);

        // 创建图表
        JFreeChart chart = new JFreeChart("XY Line Chart", JFreeChart.DEFAULT_TITLE_FONT, plot, true);

        // 设置背景颜色
        chart.setBackgroundPaint(Color.white);

        // 创建图表面板
        ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new Dimension(500, 300));

        // 将图表面板添加到GUI界面中
        setContentPane(chartPanel);
    }

    public static void main(String[] args) {
        XYLineChartExample example = new XYLineChartExample("XY Line Chart Example");
        example.pack();
        example.setVisible(true);
    }
}