java - Java中的变量默认值

Question

Java 中的每个类型在声明时都有一个原始值。文章 Primitive Data Types 包含原始数据类型的描述。知道了这一点，为什么 Eclipse 会显示错误，告诉我变量可能尚未初始化？

如果我有，例如，

int x;
x++;

Answer 1

来自引用:

Local variables are slightly different; the compiler never assigns a default value to an uninitialized local variable. If you cannot initialize your local variable where it is declared, make sure to assign it a value before you attempt to use it. Accessing an uninitialized local variable will result in a compile-time error.