JFreeChart Java chart library that makes it easy for developers to display professional quality charts in their applications. In this example we will see how to create a simple vertical bar chart using JFreeChart.
Example
package com.pretech;import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartFrame;import org.jfree.chart.JFreeChart;import org.jfree.chart.plot.PlotOrientation;import org.jfree.data.category.DefaultCategoryDataset;public class JavaVerticalBarExample {public static void main(String[] args) {DefaultCategoryDataset dataset = new DefaultCategoryDataset();dataset.setValue(40, "Phone", "Apple");dataset.setValue(45, "Phone", "Samsung");dataset.setValue(38, "Phone", "Sony");dataset.setValue(17, "Phone", "Nokia");dataset.setValue(12, "Phone", "LG");JFreeChart chart = ChartFactory.createBarChart("Phone Sales chart","Phone", "Sales", dataset, PlotOrientation.VERTICAL, false,true, false);ChartFrame chartFrame = new ChartFrame("Pretech shop Phone Sales chart", chart);chartFrame.setVisible(true);chartFrame.setSize(500, 400);}}
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