“cara menghapus elemen duplkat dari arraylist” Kode Jawaban

cara menghapus elemen duplkat dari arraylist

// Java program to remove duplicates from ArrayList
  
import java.util.*;
  
public class GFG {
  
    // Function to remove duplicates from an ArrayList
    public static <T> ArrayList<T> removeDuplicates(ArrayList<T> list)
    {
  
        // Create a new ArrayList
        ArrayList<T> newList = new ArrayList<T>();
  
        // Traverse through the first list
        for (T element : list) {
  
            // If this element is not present in newList
            // then add it
            if (!newList.contains(element)) {
  
                newList.add(element);
            }
        }
  
        // return the new list
        return newList;
    }
  
    // Driver code
    public static void main(String args[])
    {
  
        // Get the ArrayList with duplicate values
        ArrayList<Integer>
            list = new ArrayList<>(
                Arrays
                    .asList(1, 10, 1, 2, 2, 3, 3, 10, 3, 4, 5, 5));
  
        // Print the Arraylist
        System.out.println("ArrayList with duplicates: "
                           + list);
  
        // Remove duplicates
        ArrayList<Integer>
            newList = removeDuplicates(list);
  
        // Print the ArrayList with duplicates removed
        System.out.println("ArrayList with duplicates removed: "
                           + newList);
    }
}