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check if all objects in array are different java

Yoni Malka answered on August 13, 2022 Popularity 3/10 Helpfulness 1/10

answer check if all objects in array are different java

check if all objects in array are different java

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// Java program to check if all array elements are
// distinct or not.
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
 
public class DistinctElements {
    public static boolean areDistinct(Integer arr[])
    {
        // Put all array elements in a HashSet
        Set<Integer> s =
           new HashSet<Integer>(Arrays.asList(arr));
 
        // If all elements are distinct, size of
        // HashSet should be same array.
        return (s.size() == arr.length);
    }
 
    // Driver code
    public static void main(String[] args)
    {
        Integer[] arr = { 1, 2, 3, 2 };
        if (areDistinct(arr))
            System.out.println("All Elements are Distinct");
        else
            System.out.println("Not all Elements are Distinct");
    }
}

Popularity 3/10 Helpfulness 1/10 Language java

Source: www.geeksforgeeks.org

Tags: java

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