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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.util.stream.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		Map<String,Integer> map = new HashMap<String,Integer>();
  14. 		map.put("eggs",1500); 
  15.         map.put("echo",150); 
  16.         map.put("foo",320); 
  17.         map.put("smt",50);
  18.  
  19.  
  20. 	List<Map.Entry<String,Integer>> sortedList = new ArrayList<Map.Entry<String,Integer>>(
  21. 		map
  22. 		    .entrySet() 
  23.             .stream() 
  24.             .sorted((o1, o2) -> (o2.getValue()).compareTo( o1.getValue()))
  25.             .collect(Collectors.toList())
  26.     );
  27. 	List<String> word_used = new ArrayList<String>(
  28. 		sortedList
  29. 		    .stream()
  30.             .map(Map.Entry<String,Integer>::getKey)
  31.             .collect(Collectors.toList())
  32.     );
  33. 	List<Integer> ints_used = new ArrayList<Integer>(
  34. 		sortedList
  35. 		    .stream()
  36.             .map(Map.Entry<String,Integer>::getValue)
  37.             .collect(Collectors.toList())
  38.     );
  39.  
  40.     for (String s : word_used) {
  41.     	System.out.println(s);
  42.     }
  43.     for (Integer i : ints_used) {
  44.     	System.out.println(i);
  45.     }
  46. 	}
  47. }
Success #stdin #stdout 0.21s 320832KB
comments (?)
stdin 
Standard input is empty
stdout 
eggs
foo
echo
smt
1500
320
150
50
https://ideone.com/9UnJdu
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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