You have already seen some examples of closures in previous chapters. The concept of closures is new to most Java developers, and closures might seem a bit foreign when you see them for the first time. By working your way through the examples in this chapter, you will get a much better understanding of closures, how they work, and how to use them efficiently. Closures are important in Groovy; almost any real-life example in Groovy will use closures, and a good understanding of them is essential if you want to get the most out of the language.
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