In Groovy, you can initialize a method or function at runtime using closures. A closure is a code block that can be stored as a variable, passed as an argument to a method or function, and executed later on.
Here is an example of initializing a method using a closure in Groovy:
def greet = { name -> "Hello, $name!" }
println greet("John") // prints "Hello, John!"
println greet("Mary") // prints "Hello, Mary!"
In this code, greet is a closure that takes a name parameter and returns a greeting message that includes the name. We can call greet multiple times with different name values and get different output each time.
Here is an example of initializing a function using a closure in Groovy:
def calculate = { x, y -> x + y }
println calculate(2, 3) // prints 5
println calculate(5, 7) // prints 12
In this code, calculate is a closure that takes two parameters (x and y) and returns their sum. We can call calculate multiple times with different parameter values and get different output each time.
In summary, initializing a method or function at runtime in Groovy is straightforward using closures. You can define a closure that implements the desired logic and then store it as a variable or pass it as an argument to a method or function to be executed later on.