What do you mean by closures?

A closure is a short and anonymous block of code which is just used to span a few lines of code. This block of code can even be entered as a parameter in the method. Closures are anonymous in nature. Formal parameters can also be contained in closures so that it can be more useful just like methods in groovy. Closures can also refer to a variable at the time when a closure is defined. Closures can be a type of parameter for a method. Few methods provided by closure itself are listed below:

• find()
• findAll()
• any() and every()
• Collect (), etc.