求助一个JAVA作业题啊。。。各位大哥大姐帮帮忙~~~

[limeng199012]

设计并实现一个代表大楼的Building类，利用传递给该类构造方法的参数指定大楼的宽度与高度。每幢大楼均为黑色，上面有一些黄颜色的小窗户，窗户数量为随机数。创建一个程序，绘制多幢大楼（大楼个数也为随机数）！！！

[Tassdars]

import java.util.*;
import java.awt.Point;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.*;

class Building {
	private int width;
	private int height;
	private Color color = Color.BLACK;
	private List<Window> windows = new ArrayList<Window>();
	
	public int getWidth() {
		return width;
	}
	
	public int getHeight() {
		return height;
	}
	
	public Color getColor() {
		return color;
	}
	
	public List<Window> getWindows() {
		return windows;
	}
	
	public Building (int width, int height) {
		this.width = width;
		this.height = height;
		int windowCount = new Random().nextInt(5) + 1;
		for (int i = 0; i < windowCount; i++) {
			windows.add(new Window());
		}
	}
}

class Window {
	private Color color = Color.YELLOW;
	
	public Color getColor() {
		return color;
	}
}

public class Test {
	public static void main(String[] args) {
		final Random r = new Random();
		int count = r.nextInt(10) + 1;
		int width = 800;
		int height = 600;
		final List<Building> buildings = new ArrayList<Building>(count);
		final List<Point> points = new ArrayList<Point>();
		for (int i = 0; i < count; i++) {
			Building building = new Building(r.nextInt(100) + 50, r.nextInt(100) + 50);
			buildings.add(building);
			Point point = new Point(r.nextInt(width - building.getWidth()), r.nextInt(height - building.getHeight()));
			points.add(point);
		}
		JFrame frame = new JFrame();
		frame.setSize(width, height);
		frame.add(new JPanel() {
			@Override
			public void paintComponent(Graphics g) {
				super.paintComponent(g);
				for (int i = 0; i < buildings.size(); i++) {
					Building building = buildings.get(i);
					Point point = points.get(i);
					g.setColor(building.getColor());
					g.fillRect(point.x, point.y, building.getWidth(), building.getHeight());
					List<Window> windows = building.getWindows();
					for (Window window : windows) {
						g.setColor(window.getColor());
						int w = 5;
						int h = 5;
						g.fillRect(point.x + r.nextInt(building.getWidth() - w), point.y + r.nextInt(building.getHeight() - h), w, h);
					}
				}	
			}
		});
		
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
}

写得复杂了点，也不是完全用好了面向对象的思想，主要是题目的局限，很多时候抛开题目的限制自己去规划更好一些。大楼、窗户之间会重叠，这是一个BUG，解决比较费劲，就不解决了，留给楼主做思考题。

[Tassdars]

import java.util.*;
import java.awt.Point;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.*;

class Building {
	private int width;
	private int height;
	private Color color = Color.BLACK;
	private List<Window> windows = new ArrayList<Window>();
	
	public int getWidth() {
		return width;
	}
	
	public int getHeight() {
		return height;
	}
	
	public Color getColor() {
		return color;
	}
	
	public List<Window> getWindows() {
		return windows;
	}
	
	public Building (int width, int height) {
		this.width = width;
		this.height = height;
		int windowCount = new Random().nextInt(5) + 1;
		for (int i = 0; i < windowCount; i++) {
			windows.add(new Window());
		}
	}
}

class Window {
	private Color color = Color.YELLOW;
	
	public Color getColor() {
		return color;
	}
}

public class Test extends JApplet {
	private List<Building> buildings = new ArrayList<Building>();
	private List<Point> points = new ArrayList<Point>();
	private Random r = new Random();
	public static final int WIDTH = 800;
	public static final int HEIGHT = 600;
	
	public Test() {
		initParam(WIDTH, HEIGHT);
	}
	
	public static void main(String[] args) {
		JFrame frame = new JFrame();
		frame.setSize(WIDTH, HEIGHT);
		frame.add(new Test());
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
	
	@Override
	public void paint(Graphics g) {
		super.paint(g);
		paintBuilding(g);
	}
	
	private void initParam(int width, int height) {
		int count = r.nextInt(10) + 1;
		for (int i = 0; i < count; i++) {
			Building building = new Building(r.nextInt(100) + 50, r.nextInt(100) + 50);
			buildings.add(building);
			Point point = new Point(r.nextInt(width - building.getWidth()), r.nextInt(height - building.getHeight()));
			points.add(point);
		}
	}
	
	private void paintBuilding(Graphics g) {
		for (int i = 0; i < buildings.size(); i++) {
			Building building = buildings.get(i);
			Point point = points.get(i);
			g.setColor(building.getColor());
			g.fillRect(point.x, point.y, building.getWidth(), building.getHeight());
			List<Window> windows = building.getWindows();
			for (Window window : windows) {
				g.setColor(window.getColor());
				int w = 5;
				int h = 5;
				g.fillRect(point.x + r.nextInt(building.getWidth() - w), point.y + r.nextInt(building.getHeight() - h), w, h);
			}
		}
	}
}

Applet和Application都能运行，顺便带上Test.html代码：

<html>
	<head>
		<title>测试</title>
	</head>
	<body>
		<applet width="800" height="600" code="Test.class">
		</applet>
	</body>
</html>

[ksn52588a]

顶楼上的

[zlllyk110]

拒绝回答作业题。学技术就是自己做，依赖别人你永远也学不会。

[小灰狼]

[Quote=引用 6 楼 zlllyk110 的回复:]
拒绝回答作业题。学技术就是自己做，依赖别人你永远也学不会。
[/Quote]

顶一个

[clariones]

[Quote=引用 7 楼 hemowolf 的回复:]

引用 6 楼 zlllyk110 的回复:
拒绝回答作业题。学技术就是自己做，依赖别人你永远也学不会。


顶一个
[/Quote]
同意！ 用这种帖子拿分，其实不是帮别人。

[limeng199012]

[Quote=引用 1 楼 tassdars 的回复:]
Java code
import java.util.*;
import java.awt.Point;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.*;

class Building {
private int width;
private int height;
……
[/Quote]

用JAVA小程序运行，怎么改啊。。。。。。

[sainer]

又是作业题，~~

[Jay_xiaolei]

[Quote=引用 8 楼 clariones 的回复:]
引用 7 楼 hemowolf 的回复:

引用 6 楼 zlllyk110 的回复:
拒绝回答作业题。学技术就是自己做，依赖别人你永远也学不会。


顶一个

同意！ 用这种帖子拿分，其实不是帮别人。
[/Quote]
up

[Tassdars]

很多人反感做作业题，但是却普遍忽略了一件事——自助者他助，既然别人为了完成作业想交差了事，我就一定要帮他？

其实只要是这种拿分帖，目的就已经不纯粹了，我本身也没有想过要帮或者不帮楼主，如果楼主可以研究一下我的代码，甚至比我做得好，这属于自助，我也间接帮到了别人，自己还拿了分，何乐不为？如果楼主只是交差而已，那是他不愿意自助，我也就没帮到他。有没帮到，全在楼主自己，不在我，我也没有义务必须手把手地教楼主。

对于我来说，目的当然非常明确，挣点分，锻炼一下将描述转化为代码的面向对象能力，就这么简单，这是自私的东西，也没什么不好意思说的。

最后说一下，作业题解不解答，只是个主观意愿问题，大家都有说要与说不的权利。

[limeng199012]

这个只是借鉴一下。。。。。。我自己写出来一个简单一点的啦！！！和这个不一样哦。。。感谢各位~~~~

[sheng55555]

我喜欢做题 那来试试，谢谢喽