I have a Set class (This is J2ME, so I have limited access to the standard API; just to explain my apparent wheel-reinvention). I am using my set class to create ... |
I dont quite understand why Static methods can be inherited in Java ?
Inheritance is like inheriting from the base class AND Static belongs to the Class and not Object.
So if ... |
I was told that static methods in java didn't have Inheritance but when I try the following test
package test1;
public class Main {
/**
* ...
|
I've just read this article here: http://hamletdarcy.blogspot.com/2008/04/10-best-idea-inspections-youre-not.html, and the last bit in particular got me thinking about my code, specifically the advice:
What in the world is a ... |
I want to do the following: I have a bunch of classes that read Properties XML files at load-time, in their static section. Some files even share a Properties file, so ... |
Why does the below code print "Main"?
public class Main
{
public static void method()
{
System.out.println("Main");
...
|
We just refactored several implementations of ThreadFactory into a single class. I'd like to set up a build which will report if new implementations of ThreadFactory get checked in.
|
|
My application has a utility class with static methods which are responsible for showing notifications and optionally sending emails when something bad happens:
public static void sendEvent(final String description, final String name) ...
|
I am working on a project which contains a couple of modules. I want to provide the ability in every module to have a custom exception that statically populates internal structure, ... |
Hi All, I have read in few articles that the static methods cannot be inherited. To prove to myself about what i have read, I created a Parent Class with a static method say MethodA() then i Created a Child Class inheriting the Parent Class But It was a surprise for me when I saw that, I was able to inherit ... |
|
I would look this up in a book but I don't think I'll quite find the answer I'm looking for. My question is about overriding a static method. My base class is the following... package com.mycompany; public class MyUtilitlyClass { public static final FactoryClass factoryObject; static { try { factoryObject = createFactory(); } catch(FactoryException fe){ //handle exception } } protected static ... |
Hi Frnds, static methods won't participate in inheritance since its belongs to its class only and we can't override this method. This is my understanding abt static method. But the following code shows compiler error when I change the return type in Subclass. here is the code : ------------------------------------------------------- class Parent{ static String display(){ return("Baseclass"); } public class Child extends Parent{ ... |
Folks, i've typed in a program used to illustrate some concepts used in inheritance, from a book. The thing is, there are 2 errors , and I think they are related to the fact that i'm referring to two non-static variables, within a static method:- public static void main (String args[]) { BoxWeight mybox1 = new BoxWeight (10,20,15,34.3); BoxWeight mybox2 = ... |
They are inherited in the sense that they are in the scope of the subclass -- i.e., a static method Parent.method() can also be called as Child.method(), or just as method() withing the Child class. Variables can not be "overridden," so your second question applies only to methods. Static methods can't be overridden for the simple reason that they're not called ... |
Just to clarify: You can't override them, but you can shadow them. This means that which method is called is determined not a run-time, but at compile time. Consider the following (rather contrived) code: class HelloWorld{ public static void helloWorld(){ System.out.println("Hello, World"); } } public class BonjourMonde extends HelloWorld{ public static void helloWorld(){ System.out.println("Bonjour, Monde"); } public static void main(String argv[]) ... |
Hello I am preparing for SCJP 5.0 from K&B and I got on doubt regarding static methods and inheritance. My doubt is does a sub class inherit Super class static methods? If yes then why can't we override static methods in subclass? Why we do not see polymorphic behavior when we assign a sub class object to a super class reference ... |
|
|
Please read the code : class Parent { static String bar = ""; public void bar(String b){bar += b;} } class Child extends Parent { static String bar = ""; } class StaticInheritance2 { public static void main(String args[ ]) { Parent p = new Parent( ); Child c = new Child( ); p.bar("PARENT !!! "); c.bar("CHILD !!! "); System.out.println("the static ... |
|
I have three classes. Two of these classes are a child and parent. I would like to inherit static methods from the parent to the child class. I would like to use a String called diamonds in the method in the Diamonds class, and a String called clubs in the Clubs class. Also, could someone please tell me if my access ... |
Hello all I have a question regarding the combination of inheritance and static methods. My endgoal is to create a user friendly way of writing programs using code I'm writing. Therefor I wish to have static methods so that the user can write code like this: public static void main () { SearchTable.doubleClick(); ListTable.doubleClick(); } Since the way you perform a ... |
Performance-wise, no there is no drawback. But it's just a bad design to force a class to 'inherit' from another just to get convenient shortcuts to invoking utility methods. A relationship between class inheritance should only be formed if the relationship really exists, not just made up like what you're trying to do. |
And finally, no, what I said previously is correct, and has nothing to do with when stuff gets resolved. Since B does not override tryNonStat(), we will invoke the inherited tryNonStat() in A, which only knows about A's variables, not B's, and hence, 1 is printed, not 5. In the future, you might want to actually test your claims before posting ... |