List查询重复值的个数，并根据重复的数目从多到少排列

package ttt;

import java.nio.MappedByteBuffer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;

public class list查重 {

    public static void main(String[] args) {

        List <String> wordList = new ArrayList<>();
        wordList.add("age");
        wordList.add("age");
        wordList.add("age");
        wordList.add("egg");
        wordList.add("dog");
        wordList.add("copy");
        wordList.add("copy");
        wordList.add("dog");
        wordList.add("dog");
        wordList.add("copy");
        wordList.add("battle");
        wordList.add("battle");
        wordList.add("battle");
        wordList.add("battle");
        wordList.add("battle");
        wordList.add("battle");
        wordList.add("age");
        
        rangeWords(wordList);
    }

    private static void rangeWords(List<String> wordList) {
        Set<String> uniqueSet = new HashSet<>(wordList);
        Map<String,Integer> maap= new HashMap<>();
        for (String temp : uniqueSet) {
            int num = Collections.frequency(wordList, temp);
            maap.put(temp, num);
        }
        List<Entry<String,Integer>> list = new ArrayList<>(maap.entrySet());
        Collections.sort(list, new Comparator<Map.Entry<String,Integer>>() {
            @Override
            public int compare(Map.Entry<String,Integer> cmap,Map.Entry<String,Integer> cmap2){
                return cmap2.getValue()-cmap.getValue();
            }
        });
        
        printMap(list);
    }

    private static void printMap(List<Entry<String, Integer>> list) {
        for (Map.Entry entry : list) {
            System.out.println(entry.getKey()+"  "+entry.getValue());
        }
    }

}