How would you use a constructor to initialize an array

How would you use a constructor to initialize an array

How would you use a constructor to initialize an array?

A constructor can be used to initialize an array in a class. For instance, consider a class ‘ArrayClass’ with an integer array as its member. The constructor of this class could take an array as parameter and copy the elements into the member array.

Here’s a simple example in Java:

public class ArrayClass {
    private int[] arr;
    public ArrayClass(int[] inputArr) {
        this.arr = new int[inputArr.length];
        for (int i = 0; i < inputArr.length; i++) {
            this.arr[i] = inputArr[i];
        }
    }
}
In this code, ArrayClass has a constructor that takes an integer array as argument. It initializes the member array arr with the same length as inputArr, then copies each element from inputArr to arr.