Implementing comparator interface in HashMap sorting in Java

• Java

1. By observing collections The source code of sort() is as follows:

 void sort(List
  
  
  
   
   
    list,Comparator c) {
        Object[] a = list.toArray();
        Arrays
   .sort(a,(Comparator)c);
        ListIterator i = list.listIterator();
        for (int j=0; j

The results are sorted according to the number from more to less. When the number is the same, they are sorted according to the order of the first occurrence of the input.

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