fixedsizelist.java

来自「疯狂Java讲义_源码(含Java设计模式CHM」· Java 代码 · 共 29 行

import java.util.*;
/**
 * Description:
 * <br/>Copyright (C), 2005-2008, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [e-mail]
 * @version  1.0
 */
public class FixedSizeList
{
	public static void main(String[] args) 
	{
		List fixedList = Arrays.asList("Struts2权威指南" , "ROR敏捷开发最佳实践");
		//获取fixedList的实现类，将输出Arrays$ArrayList
		System.out.println(fixedList.getClass());
		//遍历fixedList的集合元素
		for (int i = 0; i < fixedList.size() ; i++)
		{
			System.out.println(fixedList.get(i));
		}
		//试图增加、删除元素都将引发UnsupportedOperationException异常
		fixedList.add("ROR敏捷开发最佳实践");
		fixedList.remove("Struts2权威指南");
	}
}