利用反射加載配置文件中的類動態生成集合

/**
 * 
 */
package com.franky.hashcode;

import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Collection;
import java.util.Properties;

/**
 * @描述  利用反射，生成集合添加對象元素
 * @作者 franky
 * @日期 2014-12-30 下午10:50:09
 * 
 */
public class CollectionByReflet {

	/**
	 * @param args
	 * @throws Exception 
	 */
	public static void main(String[] args) throws Exception {
		//得到配置文件的輸入流
		InputStream is = new FileInputStream("f://tools.properties");
		Properties p = new Properties();
		p.load(is);
		//得到配置的類名
		String className = (String) p.get("className");
		Class clazz = Class.forName(className);
		//通過反射的Class對象實例化
		Collection collection = (Collection) clazz.newInstance();
		
		Point p1 = new Point(3, 3);
		Point p2 = new Point(5, 5);
		Point p3 = new Point(3, 3);

		//添加對象元素
		collection.add(p1);
		collection.add(p2);
		collection.add(p3);
		collection.add(p1);
		
		System.out.println(collection.size());
	}

}

class Points{
	private int x;
	private int y;


	public int getX() {
		return x;
	}

	public void setX(int x) {
		this.x = x;
	}

	public int getY() {
		return y;
	}

	public void setY(int y) {
		this.y = y;
	}

	public Points(int x, int y) {
		super();
		this.x = x;
		this.y = y;
	}
	
}