| Wiki Markup |
|---|
When a class declares a static method _m_, the declaration of _m_ hides any method _m'_, where the signature of _m_ is a subsignature of the signature of _m'_ and the declaration of _m'_ is both in the superclasses and superinterfaces of the declaring class and also would otherwise be accessible to code in the declaring class \[[JLS 2005|AA. Bibliography#JLS 05]\] ["8.4.8.2 Hiding (by Class Methods)"|http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.4.8.2]. |
...
| Code Block | ||
|---|---|---|
| ||
class GrantAccess {
public void displayAccountStatus() {
System.out.print("Account details for admin: XX");
}
}
class GrantUserAccess extends GrantAccess {
@Override
public void displayAccountStatus() {
System.out.print("Account details for user: XX");
}
}
public class StatMethod {
public static void choose(String username) {
GrantAccess admin = new GrantAccess();
GrantAccess user = new GrantUserAccess();
if (username.equals("admin")) {
admin.displayAccountStatus();
} else {
user.displayAccountStatus();
}
}
public static void main(String[] args) {
choose("user");
}
}
|
...
| Wiki Markup |
|---|
\[[Bloch 2005|AA. Bibliography#Bloch 05]\] Puzzle 48: All I Get Is Static \[[JLS 2005|AA. Bibliography#JLS 05]\] ["8.4.8.2 Hiding (by Class Methods)"|http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.4.8.2] \[[Tutorials 2008|AA. Bibliography#Tutorials 08]\] [Overriding and Hiding Methods|http://java.sun.com/docs/books/tutorial/java/IandI/override.html] |
...
MET10MET07-J. For methods that return an array or collection prefer returning an empty array or collection over a null valueDo not invoke overridable methods in clone() 05. Methods (MET) MET12-J. Ensure objects that are equated are equatable