Interfaces for Custom Array Manipulation in Java

Create a Java program to demonstrate the use of an interface for custom array manipulation

An array of integers numbers is defined.
An instance of ArrayProcessor named doubler is created using a lambda expression. This instance doubles each element of the array passed to it.
The processArray method of the ArrayProcessor instance doubler is called with the numbers array as the argument.
Finally, the doubled array is printed using Arrays.toString() method.

Source Code

import java.util.Arrays;
interface ArrayProcessor 
{
	void processArray(int[] array);
}
 
public class Main
{
	public static void main(String[] args)
	{
		int[] numbers = {1, 2, 3, 4, 5};
		ArrayProcessor doubler = array -> {
			for (int i = 0; i < array.length; i++)
			{
				array[i] *= 2;
			}
		};
 
		doubler.processArray(numbers);
		System.out.println("Doubled Array : " + Arrays.toString(numbers));
	}
}

Output

Doubled Array : [2, 4, 6, 8, 10]

Interfaces for Custom Array Manipulation in Java

Source Code

Output

Example Programs

Interface Programs in Java