public void insertAtEnd(int val) {
		if(numElements == length) { //if the length is equal to the numElements.
			length = 2 * length; //Double the length.
			int B[] = new int[length]; //Create a new array of with the updated length.
			for(int i=0; i<numElements; i++) { //For loop which runs numElements of times.
				B[i] = A[i]; //Transfer the elements of A[] into B[]
			}
			A = B;
		}
		A[numElements++] = val; //Set the value at the end of the array while incrementing numElements.
	}