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Java???????????

??????????Java???????????????????????????????Java???????????????

??public??????

??:

public??????????????public???????????????????

????:

????:

public class PublicClass {
    public int value = 10; // ??????????????
    public void method() { // ??????????????
        System.out.println("Public method called");
    }
}

??protected???????

??:

protected??????????????????protected??????????????????????????????????

????:

????:

protected class ProtectedClass extends PublicClass {
    protected void protectedMethod() {
        System.out.println("Protected method called");
    }
}

??friendly??????

??:

friendly???????????????????friendly????????????????

????:

????:

class FriendlyClass {
    friendly void friendlyMethod() {
        System.out.println("Friendly method called");
    }
}

??private??????

??:

private??????????private???????????????

????:

????:

private class PrivateClass {
    private int privateKey = 123; // ????????PrivateClass???
    private void privateKeyMethod() {
        System.out.println("Private method called");
    }
}

?????????????

public > protected > friendly > private

?????????

?????????????????????????????????????

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