Reverse sorted keys in a TreeMap

It is possible to display the keys of a TreeMap in descending order but how do you sort them?

There are two solutions:

Copy TreeMap to a new TreeMap

This method consists of copying TreeMap to a new TreeMap so that you can pull the keys in descending order using descendingKeySet, you don't need to create a new TreeMap.

 private static void printReverseTreeMap(TreeMap treeMap){
 for(String key : treeMap.descendingKeySet()){
 System.out.println("value of " + key + " is " + treeMap.get(key)); 
 }
}

Create a new TreeMap in descending order

 NavigableMap reveresedTreeMap = treeMap.descendingMap(); 

References:

https://stackoverflow.com/questions/9338209/how-to-print-treemap-in-reverse-order