A closure is a function object (a function that behaves like an object) that remembers values in enclosing scopes even if they are not present in memory.When a function is available inside another function then closure is created. The inner function will have access to variables and parameters...
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Does Java need closures? The question might seem best left to Java theorists, but the final decision could redefine the way you work in Java code. Learn what you need to know about the three proposals for closures in Java 7 and how they differ.