In Julia, the element of an array can be accessed by its index. The first element of an array can be accessed by using index 1.
Here's an example:
# Defining an array
arr = [5, 10, 15, 20]
# Accessing the first element of the array
first_element = arr[1]
# Printing the first element
println("The first element of the array is: ", first_element)
Output:
The first element of the array is: 5
In this example, we first define an array arr with values [5, 10, 15, 20]. We then access the first element of the array using its index 1 and store it in the variable first_element. Finally, we print the value of the first_element variable to the console.