C#

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
       {
         e.Graphics.DrawImage(PrintImage, 0, 0, PrintImage.Width, PrintImage.Height);
       }

int numvalues = 20 ;<br />
          int [] values = { -3, 2, -2, 4, 5, 4, 2, 5, 4, 5, -1, 2, 3, 4, 7, 4, 2, 0, 7, -3 } ;<br />
<br />
          int i = 0, j =0 ;<br />
          int maxval = 0 ;<br />
          for (i = 0; i < numvalues; i++)<br />
          {<br />
            if (values[i] > maxval) maxval = values[i] ;<br />
           }<br />
            int minval = maxval ;<br />
            for (i = 0 ; i < numvalues ; i++) {<br />
            if (values[i] < minval) minval = values[i] ;<br />
            }<br />
            int freqsize = maxval - minval + 1 ;<br />
            int[] frequency = new int[freqsize];<br />
            for (i = 0 ; i < freqsize ; i++) {<br />
            frequency[i] = 0 ;<br />
            }<br />
<br />
            for (i = 0 ; i < numvalues ; i++) {<br />
            int index = values[i] - minval ;<br />
            frequency[index]++ ;<br />
            }<br />
            <br />
            for (i = 1 ; i <= freqsize ; i++) {<br />
            label1.Text= i + minval.ToString();<br />
            for(j = 0; j < frequency[i] ; j++) {<br />
                label1.Text = "*";<br />
            }<br />
           label1.Text = ("\n");<br />
            }<br />