How To Removed Elements From The Array At Random?

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Who has removed elements from the array at random?​

I want to know how to remove each element of an array in Java at random, one by one. What I have written is the program shown below:

//randomly remove elements from an array

import java.util.Random;

public class Main {

public static void main(String[] args) {
    int size = 5;

    Random r = new Random();
    int result = r.nextInt(size);

    String[] arr1 = {"1", "2", "3", "4", "5", "6"};

        for (int i = 0; i < size; i++) {
               arr1[i] = arr1[size];
            }
            System.out.println(arr1);
        }  
    }

I need assistance with both the logic for deleting the elements and publishing the result to make sure it is empty (it might need to be a String).