There are many approaches to remove duplicate elements from the array. The one of the easiest way to remove duplicate elements from the array is using HashSet, which automatically remove duplicate elements.
Example :
import java.util.*;
public class RemoveDuplicates{
//Function to remove duplicate elements from array
public static void removedup(int[] a) {
LinkedHashSet<Integer> hs= new LinkedHashSet<Integer> ();
//Adding elements to LinkedHashSet
for(int i=0;i <a.length;i++){
hs.add(a[i]);
}
System.out.print(hs);
}
public static void main(String args[]) {
int a[ ] = { 3,5,7,9,13,5,17,3};
removedup(a);
}
}
OUTPUT :
[ 3,5,7,9,13,17 ]