autoarraylist.java

很好的j2ee系统 很好的j2ee系统

package org.perfect.struts.util;

import java.util.ArrayList;

public class AutoArrayList extends ArrayList {
	
	private Class itemClass;
	
	public AutoArrayList(Class itemClass){
		this.itemClass = itemClass;
	}
	public Object get(int index){
		
		try {
			while(index >= super.size()){
				super.add(itemClass.newInstance());
			}
		} catch (InstantiationException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		}
		return super.get(index);
	}
}