import java.awt.*;
import java.applet.*;

public class Bars extends Applet {

    int[] data = {12, 30, 45, 5, 60, 20, 10};

    public void paint(Graphics g) {
        displayBars(data, g);
    }

    public void displayBars( int[] data, Graphics g) {
        int largest;
        int[] scaledData = new int[data.length];

        int yHeight = 200;
        int yStart = 20;
        int width = 30;
        int gap = 10;
        int xStart = 20;

        largest = findLargest(data);
        scaledData = scaleValues(data, largest, yHeight);

        int x = xStart;
        for (int count = 0; count < scaledData.length; count++) {
            g.fillRect(x, yStart + yHeight - scaledData[count],
               width, scaledData[count]);
            x = x + width + gap;
        }
    }

    private int findLargest( int[] data) {
        int largest = data[0];
        for (int count = 0; count < data.length; count++) {
            if (data[count] > largest)
                largest = data[count];
        }
    return largest;
    }

    private int[] scaleValues(int[] data, int largest, int yHeight) {
        int[] newArray = new int[data.length];
        for (int count = 0; count < data.length; count++) {
            newArray[count] = data[count] * yHeight / largest;
        }
    return newArray;
    }
}