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at February 16, 2010 05:47 by zxeem
Initial Code
/**
* A helper method that sorts the map sent, based on sorting its values
* using the comparator passed with it
*
* @param input The map to be sorted
* @param comparator the comparator to be used to sort the map values
*
* @return A new Sorted HashMap that holds the values
*
* @author DKasem
* @since Feb 15, 2010
* @version 0.4.2
*/
public static <T,E> Map<T, E> sortMap(final Map<T, E> input,Comparator<E> comparator){
Map<T, E> tempMap = new HashMap<T, E>();
for (T wsState : input.keySet()){
tempMap.put(wsState,input.get(wsState));
}
List<T> mapKeys = new ArrayList<T>(tempMap.keySet());
List<E> mapValues = new ArrayList<E>(tempMap.values());
// Resultant map
HashMap<T, E> sortedMap = new LinkedHashMap<T, E>();
List<E> sortedList = new ArrayList<E>(mapValues);
Collections.sort(sortedList,comparator);
for (int i=0; i<sortedList.size(); i++){
sortedMap.put(mapKeys.get(mapValues.indexOf(sortedList.get(i))),(E)sortedList.get(i));
}
return sortedMap;
}
Initial URL
Initial Description
Initial Title
Java Map Sorter Method Based on Map Values and Comparator
Initial Tags
sort, java
Initial Language
Java