Design Scenario: Smartphone class and will have derived classes like IPhone,AndroidPhone,WindowsMobilePhone can be even

Design Scenario: Smartphone class and will have derived classes like IPhone,AndroidPhone,WindowsMobilePhone can be even

Content Index :

Design Scenario: Smartphone class and will have derived classes like IPhone,AndroidPhone,WindowsMobilePhone can be even
Tag : java , By : Peter Leung
Date : November 27 2020, 01:01 AM

No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

In terms of OO design, can two-d and the three-d point classes be derived from single base class?

Tag : development , By : agjimenez
Date : March 29 2020, 07:55 AM
this will help I don't see any reason not to. But if the only difference between Shapes is in the type of Points they contain, why not make the Shape class itself a template, or a "generic" in Java parlance?

What design pattern to use when I want only some derived classes to have access to a method in base class?

Tag : chash , By : bdurbin
Date : March 29 2020, 07:55 AM
I hope this helps . It sounds as though you're missing another abstract class (SpecialChild for want of a better name) that inherits from Parent but from which Child2 and Child3 are derived.
Child1            SpecialChild   Child4    Child5
      Child2                 Child3

Object model design; base class awareness of derived classes

Tag : php , By : Theo
Date : March 29 2020, 07:55 AM
like below fixes the issue Preamble: Is it bad design for a base class to be aware of and make interactions using derived types? I'm assuming not, so what approach should I consider for the following? , You should be able to generalize it:
public function get_ancestor($type){
    if($this->_parent instanceof $type){
        return $this->_parent;
    if(null !== $this->_parent){
        return $this->_parent->get_ancestor($type);
    return null;

When using a virtual base class in a multiple inheritance scenario, is it necessary for all derived classes to reference

Tag : cpp , By : John Studdert
Date : March 29 2020, 07:55 AM
wish helps you It semantically identical, since each derived class will have exactly one virtual base of type A. Mentio­ning the virtual base explicitly is quite nice, because the most-derived class constructs the virtual base (unlike what happens for non-virtual bases), and the construction order is important to keep in mind when writing the constructors of the derived classes.
I don't have a technical answer for (2). You don't have to do it, but it would be nice if you did. Like calling your parents, I suppose. As with many things, C++ doesn't force you to be reasonable.

Good design for a reusable class with many derived classes

Tag : cpp , By : mgaspar
Date : March 29 2020, 07:55 AM
I wish this helpful for you
Does this design seem good or are there some glaring holes I haven't accounted for? Or are there other common patterns used in situations like this?
Related Posts Related QUESTIONS :
  • Spring Boot application with a jar dependency does not run after maven build
  • Spring Data JPA query , filter ? search engine ? JPQL?
  • Why LiveData returns null in ViewModel?
  • what this line of code mean....new URLClassLoader(new URL[0],getClass().getClassLoader());
  • Why do need to use new Random() instead of just Random Randomnum?
  • I want to access zk components from the java file
  • How do I cast FieldValue.serverTimestamp() to Kotlin/Java Date Class
  • Insertion Sort Double Array with User Input - JAVA
  • Creating 2 dimesional array with user input and find sum of specific columns
  • can not get Advertising ID Provider in android
  • Convert list of Objects to map of properties
  • How to represent an undirected weighted graph in java
  • Return values as array from collection
  • ByteBuddy generic method return cast to concrete type
  • ImageView hides the round corners of the parent
  • Is there a way to find setter method by its getter method or vice versa in a class?
  • Get aggregated list of properties from list of Objects(Java 8)
  • Unable to find a document in Mongodb where exact date match in java
  • UsernamePasswordAuthenticationFilter skips success handler
  • Use Java filter on stream with in a stream filter
  • Default Login not successful in spring boot 2.1.7
  • Adding key value pairs from a file to a Hashmap
  • Rub regex: matching a char except when after by another char
  • Convert Base64 String to String Array
  • Escape Unicode Character 'POPCORN' to HTML Entity
  • An empty JSON field which is a boolean/nullable field in Java model, is getting converted as null
  • Mongo java driver cannot find public constructor for interface
  • How to unit test writing a file to AWS Lambda output stream?
  • How to make a GitHub GraphQL API Call from Java
  • What's the difference between @ComponentScan and @Bean in a context configuration?
  • Expected class or package adding a view using a class
  • can be delete of a element in a static array be O(1)?
  • Instance variable heap or stack ? ( with specific example)
  • Assert progress of ProgressBar in Espresso test
  • How to detect if gson.fromjson() has excess elements
  • I cant generate the proper code to select the a specific filter on a BI dashboard I am working on
  • How to Inject Dependencies into a Servlet Filter with Spring Boot Filter Registration Bean?
  • Thrift types as a Generic
  • Effective algorithm to random 4 unique integers less than a big max such as 100_000
  • Combining or and negation in Java regex?
  • Unable to instantiate default tuplizer Exception
  • Multi-tenant migration to work with quarkus
  • Ignite persisting a Set: Cannot find metadata for object with compact footer
  • Maven cannot resolve Jacob dependency using eclipse
  • testcontainers oracle database container starts before database user is created
  • Launching two spring boot apps in integration test
  • Is there a way to add a HashMap's value that is a integer array into a ArrayList?
  • Is there any way that I can get a parameter in paintComponent?
  • Empty stack with one recursive method and one iterative method
  • What's the behavior of onBackpressureBuffer in RxJava2
  • Java regex can only use 1 quantifier in a lookback (need 2)
  • How to fix error in native query : it is showing syntax error near or at
  • How to retrieve nested object from a document and display it in FirestoreRecyclerOptions?
  • Why not use ListIterator for full LinkedList Operation?
  • Android Webview EvaluateJavascript sometimes does not return a response
  • Matcher java doesn't work but regex seems to be good
  • Finding dimensions of a .gif file
  • Java Number format how to change +/- sign to custom text
  • Entity partially saved when using JOINED inheritance strategy and setting spring.jpa.properties.hibernate.jdbc.batch_siz
  • Stored Procedure in Java Spring Boot Project returns null as Output
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com