java Java中参数保证的执行顺序？
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Order of execution of parameters guarantees in Java?
提问by tpdi
Given the following function call in C:
鉴于以下函数调用C：
fooFunc( barFunc(), bazFunc() );
The order of execution of barFuncand BazFuncis not specified, so barFunc()may be called before bazFunc()or bazFunc()before barFunc()in C.
barFunc和的执行顺序BazFunc没有指定，因此barFunc()可以在in之前bazFunc()或bazFunc()之前调用。barFunc()C
Does Javaspecify an order of execution of function argument expressions or like Cis that unspecified?
是否Java指定函数参数表达式的执行顺序或类似C的未指定？
回答by Michael Easter
From the Java Language Specification(on Expressions):
来自Java 语言规范（关于表达式）：
15.7.4 Argument Lists are Evaluated Left-to-Right
In a method or constructor invocation or class instance creation expression, argument expressions may appear within the parentheses, separated by commas. Each argument expression appears to be fully evaluated before any part of any argument expression to its right.
15.7.4 从左到右评估参数列表
在方法或构造函数调用或类实例创建表达式中，参数表达式可能出现在括号内，用逗号分隔。每个参数表达式似乎在其右侧的任何参数表达式的任何部分之前完全计算。
