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1、JFreechart完整柱狀圖importjava.io.IOException;publicclassAttendanceMain{publicstaticvoidmain(String[]args)throwsIOException{double[][]data=newdouble[][]{{100,96,98,95,99,100,92,93,91,94,96},{97,96,98,95,99,100,92,93,91,94,96},{97,96,98,95,99,100,92,93,91,94,96},{97,96,98,95,99,100,92,93,91,94,96}};Strin
2、g[]columnKeys={"測(cè)控1班","測(cè)控2班","信號(hào)1班","信號(hào)2班","信號(hào)3班","計(jì)通1班","計(jì)通2班","城軌1班","城軌2班","計(jì)應(yīng)1班","計(jì)應(yīng)2班"};String[]rowKeys={"2009級(jí)","2010級(jí)","2011級(jí)","2012級(jí)"};newAttendance(data,rowKeys,columnKeys);//at.setSubstring("第八周");}}importjava.awt.Color;importjava.awt.Font;importjava.awt.RenderingHints;importjava.io.FileO
3、utputStream;importjava.io.IOException;importorg.jfree.chart.ChartFactory;importorg.jfree.chart.ChartUtilities;importorg.jfree.chart.JFreeChart;importorg.jfree.chart.axis.AxisLocation;importorg.jfree.chart.axis.CategoryAxis;importorg.jfree.chart.axis.CategoryLabelPositions;importorg.jfree.chart.axis
4、.ValueAxis;importorg.jfree.chart.labels.StandardCategoryItemLabelGenerator;importorg.jfree.chart.plot.CategoryPlot;importorg.jfree.chart.plot.PlotOrientation;importorg.jfree.chart.renderer.category.BarRenderer;importorg.jfree.chart.title.TextTitle;importorg.jfree.data.category.CategoryDataset;impor
5、torg.jfree.data.general.DatasetUtilities;publicclassAttendance{/*privateStringsubtitle;publicvoidsetSubstring(Stringsub){subtitle=sub;}*/publicAttendance(double[][]data,String[]rowKeys,String[]columnKeys)throwsIOException{CategoryDatasetdataset=DatasetUtilities.createCategoryDataset(rowKeys,columnK
6、eys,data);JFreeChartchart=ChartFactory.createBarChart("計(jì)算機(jī)與通信工程系各班出勤率",//圖表標(biāo)題"班級(jí)",//目錄軸的顯示標(biāo)簽"出勤率(%)",//數(shù)值軸的顯示標(biāo)簽dataset,//數(shù)據(jù)集PlotOrientation.VERTICAL,//圖表方向：水平//PlotOrientation.HORIZONTAL,//圖表方向：垂直true,false,false);//設(shè)置背景顏色chart.setBackgroundPaint(Color.cyan);CategoryPlotplot=chart.getCategoryPlot()
7、;BarRendererrender=(BarRenderer)plot.getRenderer();render.setBaseOutlinePaint(Color.red);//設(shè)置詳細(xì)圖表的顯示細(xì)節(jié)部分的背景顏色plot.setBackgroundPaint(Color.lightGray);//設(shè)置垂直網(wǎng)格線顏色plot.setDomainGridlinePaint(Color.black);//設(shè)置
