是否有任何称为“恒定折叠"的概念?在java中? [英] is there any concept called "Constant Folding" in java?

问题描述

在Java中是否有称为恒定折叠"的概念?如果是，那是什么?

is there any concept called "Constant Folding" in java? if yes what is it?

推荐答案

常量折叠是在编译时简化常量表达式的过程.常量表达式中的术语通常是简单的文字，例如整数2，但也可以是永远不会修改其值的变量，也可以是明确标记为常量的变量

Constant folding is the process of simplifying constant expressions at compile time. Terms in constant expressions are typically simple literals, such as the integer 2, but can also be variables whose values are never modified, or variables explicitly marked as constant

是的，它存在于Java中:编译器优化

Yes, it's exists on Java: Compiler optimizations

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