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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.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 		int[] arr = {1,2,3,4,4,5,5,5};
  14. 		HashMap<Integer, Integer> mpp = new HashMap<>();
  15. 		for(int i=0;i<arr.length;i++){
  16. 			mpp.put(arr[i],mpp.getOrDefault(arr[i],0)+1);
  17. 		}
  18. 		int maxiFreq = Integer.MIN_VALUE, maxiElement = arr[0];
  19.         int miniFreq = Integer.MAX_VALUE, miniElement = arr[0];
  20. 		for(Map.Entry<Integer, Integer> e: mpp.entrySet()){
  21.             if (e.getValue() >= maxiFreq){
  22.                 maxiFreq = e.getValue();
  23.                 maxiElement = e.getKey();
  24.             }
  25.             if (e.getValue() <= miniFreq){
  26.                 miniFreq = e.getValue();
  27.                 miniElement = e.getKey();
  28.             }
  29. 		}
  30. 		System.out.println("Max frequency element: " + maxiElement + " with frequency: " + maxiFreq);
  31.         System.out.println("Min frequency element: " + miniElement + " with frequency: " + miniFreq);
  32. 	}
  33. }
Success #stdin #stdout 0.18s 55500KB
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Standard input is empty
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Max frequency element: 5 with frequency: 3
Min frequency element: 3 with frequency: 1
https://ideone.com/JIkaAq
language:
Java (HotSpot 12)
created:
193 days ago
visibility:
public

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