使用不同的访问修饰符、return 类型和参数重载方法是否仍被视为重载？

Question

这可能只是语义问题，可能是个愚蠢的问题，但我很好奇以下内容是否会被视为重载：

public String name = "name";

public void printName() {
    System.out.println(name);
}

protected String printName(String extra) {
    System.out.println(name + extra);
    return name + extra;
}

我读过的所有内容都说必须更改参数才能发生重载，并且只要参数不同，更改访问修饰符和 return 类型就不会导致编译错误，但是我不知道后者是否仍会被视为超载。

Answer 1

如有疑问，JLS will help：

If two methods of a class (whether both declared in the same class, or both inherited by a class, or one declared and one inherited) have the same name but signatures that are not override-equivalent, then the method name is said to be overloaded.

所以这不是“改变参数”，而是关于不覆盖等效。要找出那是什么，你去 to another chapter，上面写着：

Two method signatures m1 and m2 are override-equivalent iff either m1 is a subsignature of m2 or m2 is a subsignature of m1.

同一章解释了 subsignature 是什么：

The signature of a method m1 is a subsignature of the signature of a method m2 if either:

m2 与 m1 具有相同的签名，或者
m1的签名与m2签名的擦除（§4.6）相同

您如何解释上述方法是留给您的练习。

使用不同的访问修饰符、return 类型和参数重载方法是否仍被视为重载？

Is overloading a method with different access modifier, return type, and parameters still considered overloading?

java

oop

overloading