brick.java

现在在国外大学里最流行的java学习软件,同时还有大量的example,在名为project的文件里.安装好后用bluej打开peoject的例子,可以进行你想要的任何变化.同时可以了解大量的源码

/**
 * Brick models a simple brick.
 * 
 * @author: Michael Kolling and David J. Barnes
 * @version 2006.03.30
 */
public class Brick
{
    // Constant.
    private static final int WEIGHT_PER_CM3 = 2;  // weight per cubic cm in grams

    private int height;
    private int width;
    private int depth;

    /**
     * Create a Brick given edge lengths in centimeters.
     * @param height The brick's height.
     * @param width The brick's width.
     * @param depth The brick's depth.
     */
    public Brick(int height, int width, int depth)
    {
        this.height = height;
        this.width = width;
        this.depth = depth;
    }

    /**
     * @return The surface area of this brick in square centimeters.
     */
    public double getSurfaceArea()
    {
        double side1 = width * height;
        double side2 = width * depth;
        double side3 = depth * height;
        double total = (side1 + side1 + side3) * 2;

        return total;
    }

    /**
     * @return The weight of this brick in kg.
     */
    public double getWeight()
    {
        return (getVolume() * WEIGHT_PER_CM3) / 1000;
    }

    /**
     * @return The volume of this brick in cubic centimeters.
     */
    public int getVolume()
    {
        return width * height * depth;
    }

    /**
     * @return The height of this brick in centimeters.
     */
    public double getHeight()
    {
        return height;
    }
}