Question

How to check if array contains only distinct (non-repeating) elements in Java

Answer 1

import java.util.HashSet;
import java.util.Arrays;
import java.util.Set;
  
public class MyClass {
    public static boolean isDistinctArray(Integer[] arr) {
        Set set = new HashSet(Arrays.asList(arr));
 
        return arr.length == set.size();
    }
    public static void main(String args[]) {
        Integer[] arr = {1, 4, 6, 8, 2, 9, 0, 5};
        
        if (isDistinctArray(arr))
            System.out.println("Yes");
        else
            System.out.println("No");
     }
}
  
  
  
     
/*
run:
            
Yes
            
*/

 

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