BarChartRacer.java

/* *****************************************************************************
 *  Name:              Ada Lovelace
 *  Coursera User ID:  123456
 *  Last modified:     October 16, 1842
 **************************************************************************** */

import java.util.Arrays;
public class BarChartRacer {
    public static void main(String[] args) {
        In fileName = new In(args[0]);
        int noOfbars = Integer.parseInt(args[1]);
        String title = fileName.readLine();
        String xAxisLabel = fileName.readLine();
        String source = fileName.readLine();
        BarChart chart = new BarChart(title, xAxisLabel, source);

        StdDraw.setCanvasSize(1000, 700);
        StdDraw.enableDoubleBuffering();

        while (fileName.hasNextLine()) {
            String readSpace = fileName.readLine();
            String n = fileName.readLine();
            int noOfEntries = Integer.parseInt(n);
            Bar[] bars = new Bar[noOfEntries];
            for (int i = 0; i < noOfEntries; i++) {
                String line = fileName.readLine();
                int c = 0;
                int[] indexOfCommas = new int[4];
                for (int j = 0; j < line.length(); j++) {
                    if (line.charAt(j) == ',') {
                        indexOfCommas[c++] = j;
                    }
                }
                String caption = line.substring(0, indexOfCommas[0]);
                String barName = line.substring(indexOfCommas[0] + 1, indexOfCommas[1]);
                String barNameInfo = line.substring(indexOfCommas[1] + 1,
                                                    indexOfCommas[2]);
                String value = line.substring(indexOfCommas[2] + 1, indexOfCommas[3]);
                String category = line.substring(indexOfCommas[3] + 1);
                bars[i] = new Bar(barName, Integer.parseInt(value), category);
                chart.setCaption(caption);
            }
            Arrays.sort(bars);
            for (int i = 0; i < Math.min(noOfbars, noOfEntries); i++) {
                int k = noOfEntries - 1 - i;
                chart.add(bars[k].getName(), bars[k].getValue(), bars[k].getCategory());
            }
            chart.draw();
            StdDraw.show();
            StdDraw.pause(100);
            StdDraw.clear();
            chart.reset();
        }
    }
}