gof | development framework with golang | Web Framework library

The Gang of Four book states the following:

[...] The main relationships in MVC are given by the Observer, Composite and Strategy design patterns.

The best example of this I could find was this github repo, which shows the following class diagram:

I'm particularly interested in the Strategy part of the MVC, where the following holds:

Regarding the relationship between View and Controller, The book Head First Design Patterns states the following:

The controller may also ask the view to change. When the controller receives an action from the view, it may need to tell the view to change as a result. For example, the controller could enable or disable certain buttons or menu items in the interface

It also shows an example where the ConcreteController equivalent BeatController) defines an additional association with the ConcreteView equivalent (DJView):

I am trying to use Matlab to generate a line graph, but the line terminates at the last point, and doesn't go all the way to the origin. Is there any way to make it so that the line goes beyond the points in code?

I've attached the code that I'm currently using, along with pictures of what the graph looks like right now and how I want it to look.

I am trying to upgrade my springboot version from 2.3.4 to 2.6.1. I use query dsl with jpa and apt-maven-plugin. My issue is that I can't no more generate the QClasses when I run maven compile. I noticed that I am no more able to use an older version of querydsl (previous one 4.4.0 and apt-maven-plugin 1.1.3). Now when I try to use the 4.4.0 I have an error :

Non-resolvable import POM: com.querydsl:querydsl-bom:pom:4.4.0 was not found in https://repo.maven.apache.org/maven2

And then when I switch to the 5.0.0 version I have an other error :

[INFO] --- apt-maven-plugin:1.1.3:process (default) @ gof-referentiel-backend --- [WARNING] The artifact org.apache.commons:commons-io:jar:1.3.2 has been relocated to commons-io:commons-io:jar:1.3.2: https://issues.sonatype.org/browse/MVNCENTRAL-244 /home/ezek/Documents/projects/gof-referentiel-backend/src/main/java/fr/ubordeaux/gof/referentiel/common/persistence/dao/impl/ContactDAOImpl.java:12: error: cannot find symbol import fr.ubordeaux.gof.referentiel.common.persistence.entity.QContactEntity; ^ symbol: class QContactEntity location: package fr.ubordeaux.gof.referentiel.common.persistence.entity /home/ezek/Documents/projects/gof-referentiel-backend/src/main/java/fr/ubordeaux/gof/referentiel/common/persistence/dao/impl/ContactDAOImpl.java:29: error: cannot find symbol private static final QContactEntity qContactEntity = QContactEntity.contactEntity;

I get this error for all the classes that use entities. And nothing is generated.

Here is are the relevant values of my pom.xml :

...

I'm trying to make a PCoA plot and after running cmdscale, I want to create a dataframe of the X and Y points for later use and plotting purposes. Below is my code and the error I get:

How can you remove gof rows from a texreg table? In my specific case, I'd like to remove the R², Adj. R², and F statistic rows.

I'm using texreg version 1.37.5 and R version 4.1.1. The default table rows I get from texreg in addition to headings and coefficients are R², Adj. R², Num. obs., and RMSE.

The answer here (R texreg: How can I select the gof statistics to be displayed?) is implemented in the code below but does not work. Possibly the package changed in the last few years since this response was posted.

A look at the texreg documentation here, under the omit.coef section, indicates that you can remove gof rows using extract but the link is broken.

SSCCE:

Im reading the book of GoF. Could you please explain the following Advantage:

It limits subclassing. A mediator localizes behavior that otherwise would be distributed among several objects. Changing this behavior requires subclassing Mediator only; Colleague classes can be reused as is.

Is it meant that we should subclass the Mediator or the ConcreteMediator? Can we have more than one ConcreteMediators that inherit form the same Mediator?

I am trying to get the second last value in each row of a data frame, meaning the first job a person has had. (Job1_latest is the most recent job and people had a different number of jobs in the past and I want to get the first one). I managed to get the last value per row with the code below:

first_job <- function(x) tail(x[!is.na(x)], 1)

first_job <- apply(data, 1, first_job)

I'm learning Java design patterns by "Patterns in Java", volume 1 by Mark Grand (Factory Method specifically). My point is to highlight difference between closest patterns for myself. There are good answers that clarify the difference between Factory Method and Abstract Factory (Design Patterns: Factory vs Factory method vs Abstract Factory, What is the basic difference between the Factory and Abstract Factory Design Patterns?). But I noticed that most of authors mean some other interpretation of Factory Method compared to one I have read in "Patterns in Java". The interpretation from the answers is closer to Factory Method from GoF book.

GoF interpretation:

Grand's interpretation:

To be specific I will describe what in my opinion is a key difference between Grand's and GoF interpretations. The source of polymorphism in GoF interpretation is inheritance: different implementations of Creator create different types of Products. The source of polymorphism in Mark Grand interpretations apparently is "data-driven class determination" (example from book):

Don't angry with me. I am new in c++ and qt I have used singleton calss following the example from Gof But get Error