Java 给ArrayList中的元素去重且顺序不变

[url]http://my.oschina.net/isxiaoge/blog/492801[/url]

import java.util.ArrayList;
import java.util.LinkedHashSet;
public class MainClass
{
    public static void main(String[] args)
    {
        //Constructing An ArrayList
ArrayList listWithDuplicateElements = new ArrayList();
listWithDuplicateElements.add("JAVA");
listWithDuplicateElements.add("J2EE");
listWithDuplicateElements.add("JSP");
listWithDuplicateElements.add("SERVLETS");
listWithDuplicateElements.add("JAVA");
listWithDuplicateElements.add("STRUTS");
listWithDuplicateElements.add("JSP");

LinkedHashSet set = new LinkedHashSet(listWithDuplicateElements);

ArrayList listWithoutDuplicateElements = new ArrayList(set);

System.out.print("ArrayList After Removing Duplicate Elements :");
System.out.println(listWithoutDuplicateElements);
    }
}