Creating a time series with jfreechart

Right now I want to create a time series graph in jfreechart. However the examples online only have charts using classes like "Day", "Month", and so on. So I want to essentially create a XY line chart. However the problem I'm having is that Jfreechart doesn't connect the data points in the order in which they were added. Also it doesn't co开发者_开发知识库nnect the points in the order of the "X Values". So basically I get a "Z" in my jfreechart.

So my question is, is there a way to change the setting for the jfreechart so that it connects the data points based on the "X values"?

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You might have a look at org.jfree.chart.demo.TimeSeriesChartDemo1, and the associated API documentation. A typical command to run the demo might look like this:

java -cp lib/jfreechart-1.0.13.jar:lib/jcommon-1.0.16.jar \
org.jfree.chart.demo.TimeSeriesChartDemo1

The example uses org.jfree.data.time.Month to represent monthly data, but other units are available in org.jfree.data.time. See also the approach shown in this related example, which is based on TimeSeriesChartDemo1.