The value is passed on java and passed by reference (that is, address transfer)

Explain the concept:

1. Value is passed, pass a value change occurs in the function parameter does not affect the argument.
2. Passed by reference, pass object references, changes in the function parameter arguments occurring impact.

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1. For the basic data types, variable is worth referring to the copy;

2. For objects (or package basic types String, Integer, etc.), refers to a copy target address, that is the value passed is the address of the object;