java中的常量变量和最终变量有什么区别?
请帮助我理解 Java 中常量变量和 final 变量之间的区别.我有点困惑.
Please help me understand the difference between constant variables and final variables in Java. I am a bit confused with it.
推荐答案
Constant是概念，是变量的属性.
Constant is the concept, the property of the variable.
final 是声明常量变量的java关键字.
final is the java keyword to declare a constant variable.
正如其他人指出的那样，从语义/语言的角度来看，表达式 constant variable 是矛盾的，因此，我们可以争论它的正确性.
As other people pointed out, from a semantic/linguistic point of view the expression constant variable is an oxymoron and, as such, we could argue about its correctness.
引用规范，无论如何，我们可以阅读
Quoting the specification, anyway, we can read
原始类型的变量 [...] 是 final 并使用编译时常量表达式(第 15.28 节)进行初始化，称为常量变量.
A variable of primitive type [...], that is final and initialized with a compile-time constant expression (§15.28), is called a constant variable.
因此，我想我们可以接受(并认为是正确的)这个二项式来达到我们的目的.
I suppose, hence, that we can accept (and consider correct) this binomial for our purpose.
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