Randomly remove elements from array

[aitía]

I would like to learn how to randomly remove the elements from an array in Java, one at a time. The below program is what I have written:

//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 am looking for help with printing the result to check that it is empty (might need toString) and also the logic for removing the elements.

 

[VBService]

Try use: Arrays.toString(Arrays.copyOfRange(arr1, 0, size)))

[ Working code on-line ]

import java.util.Random;
import java.util.Arrays;

public class Main {

    public static void main(String[] args) {
        // Define initial array
        String[] arr1 = {"a", "b", "c", "d", "e", "f"};
        int size = arr1.length; // Current size of the array
        
        // Create an instance of Random
        Random r = new Random();

        // Pick a random index to remove
        int indexToRemove = r.nextInt(size);
        System.out.println("Element to remove: " + arr1[indexToRemove]);

        // Print the array before removing the element
        System.out.println("Before removal: " + Arrays.toString(Arrays.copyOfRange(arr1, 0, size)));

        // Remove the element at the random index by shifting elements
        for (int i = indexToRemove; i < size - 1; i++) {
            arr1[i] = arr1[i + 1]; // Shift elements to the left
        }
            
        // Reduce the size of the array
        size--;

        // Print the array after removing the element
        System.out.println(" After removal: " + Arrays.toString(Arrays.copyOfRange(arr1, 0, size)));
    }

}