What is the actual parameter of big data Zhong Xing's participation?

Xiaobian to share with you what is the participation parameter in big data, I hope you have something to gain after reading this article, let's discuss it together!

Parameters are divided into actual parameters and parameters. Parameters when defining methods are called parameters, and parameters when invoking methods are called actual parameters. When calling a method, you pass arguments to parameters by value, and you actually use parameters inside the method.

Value passing refers to passing the value of a parameter when the parameter is a primitive data type; passing the value of an object when the parameter is an object, that is, the memory address of the object.

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