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import org.jfree.data.general.DatasetUtilities;
 
final double[][] data = new double[][] {
                {1.0, 43.0, 35.0, 58.0, 54.0, 77.0, 71.0, 89.0},
                {54.0, 75.0, 63.0, 83.0, 43.0, 46.0, 27.0, 13.0},
                {41.0, 33.0, 22.0, 34.0, 62.0, 32.0, 42.0, 34.0}
        };
 
final org.jfree.data.category.CategoryDataset dataset =  DatasetUtilities.createCategoryDataset("Series ", "Factor ", data);
 
try{
JFreeChart barChart = ChartFactory.createBarChart(this.nom_vue+".png","","",dataset,PlotOrientation.VERTICAL,true,true,true);
 
BufferedImage bi = barChart.createBufferedImage(1000,1000);
} //... | 
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