Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;

import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

public class Main {
    @SuppressWarnings({ "unchecked", "rawtypes" })
    public static HashMap<?, ?> sortByValue(HashMap<?, ?> map, final int flag) {
        // flag = 0 decreasing order otherwise increasing
        List<Map.Entry<?, ?>> list = new LinkedList<Map.Entry<?, ?>>(map.entrySet());
        Collections.sort(list, new Comparator() {
            public int compare(Object o1, Object o2) {
                if (flag == 0)
                    return ((Comparable) ((Map.Entry) (o2)).getValue()).compareTo(((Map.Entry) (o1)).getValue());
                else
                    return ((Comparable) ((Map.Entry) (o1)).getValue()).compareTo(((Map.Entry) (o2)).getValue());
            }
        });

        HashMap result = new LinkedHashMap();
        for (Iterator it = list.iterator(); it.hasNext();) {
            Map.Entry entry = (Map.Entry) it.next();
            result.put(entry.getKey(), entry.getValue());
        }
        return result;
    }
}