ListUtil.java

package com.threeH.MyExhibition.tools;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

public class ListUtil {
    /**
     * 数组去除重复元素
     */
    public static List<String> removeDuplicateWithOrder(List<String> list) {
        Set<String> set = new HashSet<String>();
        List<String> newList = new ArrayList<String>();
        for (Iterator<String> iter = list.iterator(); iter.hasNext(); ) {
            String element = iter.next();
            if (set.add(element))
                newList.add(element);
        }
        list.clear();
        return newList;
    }
}