In Groovy, you can get the size of an array using the .size() or .length methods. Here are some examples:
1. Using .size() method:
def array = [1, 2, 3, 4, 5]
def size = array.size()
println size // Output: 5
2. Using .length property:
def array = [1, 2, 3, 4, 5]
def length = array.length
println length // Output: 5
In both examples, we defined an array and used the .size() and .length methods to obtain its size. The result is printed using the println statement.