Java public / private和static修饰符如何影响在一行中声明的多个变量？(How do Java public/private and static modifiers affe

Java public / private和static修饰符如何影响在一行中声明的多个变量？(How do Java public/private and static modifiers affect multiple variables declared on one line?)

以下是否相同？

private static boolean readAllFiles = false,readAllDirs = false; private static boolean readAllFiles = false; private static boolean readAllDirs = false;

如果是这样，他们是否仍然有不同值的修饰符？

private static boolean readAllFiles = false,readAllDirs = true;

Are the following equivalent?

private static boolean readAllFiles = false,readAllDirs = false; private static boolean readAllFiles = false; private static boolean readAllDirs = false;

And if so, do they still have the same modifiers with different values?

private static boolean readAllFiles = false,readAllDirs = true;

最满意答案

是的，无论其初始值如何，它们都是等价的。

这里是一些测试代码来演示：

public class TestClass { private static boolean readAllFiles = false,readAllDirs = true; public static void main(String[] args) { //these two would result in COMPILE error if both vars were not static System.out.println("readAllFiles: " + readAllFiles); System.out.println("readAllDirs: " + readAllDirs); } }

---

public final class TestClass2 { public static void main(String[] args) { //these two DO result in COMPILE error, because both vars are private System.out.println("TestClass.readAllFiles: " + TestClass.readAllFiles); System.out.println("TestClass.readAllDirs: " + TestClass.readAllDirs); } }

Yes, they are equivalent, regardless of their initial values.

Here is some test code to demonstrate:

public class TestClass { private static boolean readAllFiles = false,readAllDirs = true; public static void main(String[] args) { //these two would result in COMPILE error if both vars were not static System.out.println("readAllFiles: " + readAllFiles); System.out.println("readAllDirs: " + readAllDirs); } }

---

public final class TestClass2 { public static void main(String[] args) { //these two DO result in COMPILE error, because both vars are private System.out.println("TestClass.readAllFiles: " + TestClass.readAllFiles); System.out.println("TestClass.readAllDirs: " + TestClass.readAllDirs); } }