kandi X-RAY | BookApp Summary
kandi X-RAY | BookApp Summary
BookApp
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QUESTION
Do forgive my poor question drafting skill, please help me understand the error shown in logcat which I believe is the reason why my app stopping
My Main Activity File
...ANSWER
Answered 2021-May-27 at 15:29Error says
This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.
You need to change your code in themes.xml.
It should have line like this.
QUESTION
i am trying to create multiple appoinments for a user and anytime i do it i get this error.
...ANSWER
Answered 2020-Aug-11 at 22:42appointment,created = cls.objects.get_or_create(patient=patient,hospital=hospital) the line returns 2 objects while the get wait for only 1 object. You should sure an Appointment instance has unique with patient, hospital (together). If you can't sure with that which means multiple instances can have the same patient and hospital then you can not use the get method.
QUESTION
My assignment asks us to make the following variables private as shown: private String title; private double price; --------these variables can be found on the file Book.java.
My code isn't able to retrieve these variables because they are not visible for the file Textbook.java. How can I keep these variables private, but still get the output desired when I run the TextbookApp.java file. Here is the desired output:
Here is the output I'm getting right now:
Book.java
...ANSWER
Answered 2020-Jun-24 at 14:20You can solve the error by calling the appropriate superclass constructor or method in Book from your Textbook subclass:
QUESTION
Hi im trying to do bookstore simple app from book Vishal Layka Learn Java for Web Development. I have a problem in client of data access layer BookAPP.java which should use BookDAO interface. I have included BookAPP, BookDAO, BookDAOImpl codes.
Errors: cannot-make-a-static-reference-to-the-non-static-method from the type bookDAO List books = BookDAO.findAllBooks(); List books = BookDAO.searchBooksByKeyWord(keyWord);
...ANSWER
Answered 2020-Feb-23 at 15:09findAllBooks() and searchBooksByKeyWord() methods are non-static so you need to create an instance to use them.
BookDAO is an interface with abstract methods having no implementation. BookDAOImpl has the implementations. It is already present in your code: BookDAO bookDao = new BookDAOImpl();
So it should be bookDAO instead of BookDAO:
QUESTION
I am making a Class called Book that represents books that have a title, an author and a year, when they won the award.
I have a method getList which should read in the data from a csv file and if a line doesn’t follow the pattern title,author,year then a message should be written to the standard error stream. I am having trouble determine how to specify the error message.
I can read in the file using BufferedReader
However, when it comes verifying all 3 values are there (title, author, year) I am not sure where to start. I imagine I need 3 variables which would check if (year, author, etc) is missing in one of the lines of the csv. I'm new to buffered reader and not sure how to go about this. any help is appreciated
I have looked on the internet and haven't found exactly what I'm looking for
...ANSWER
Answered 2019-Aug-26 at 20:31Heey you can use the following code to parse and validate the books:
QUESTION
I am exploring the istio service mesh on my k8s cluster hosted on EKS(Amazon).
I tried deploying istio-1.2.2 on a new k8s cluster with the demo.yml file used for bookapp demonstration and most of the use cases I understand properly.
Then, I deployed istio using helm default profile(recommended for production) on my existing dev cluster with 100s of microservices running and what I noticed is my services can can call http endpoints but not able to call external secure endpoints(https://www.google.com, etc.)
I am getting :
curl: (35) error:1400410B:SSL routines:CONNECT_CR_SRVR_HELLO:wrong version number
Though I am able to call external https endpoints from my testing cluster.
To verify, I check the egress policy and it is mode: ALLOW_ANY in both the clusters.
Now, I removed the the istio completely from my dev cluster and install the demo.yml to test but now this is also not working.
I try to relate my issue with this but didn't get any success.
I don't understand what I am missing or what I am doing wrong.
Note: I am referring to this setup: https://istio.io/docs/setup/kubernetes/install/helm/
...ANSWER
Answered 2019-Aug-24 at 19:47This is most likely a bug in Istio (see for example istio/istio#14520): if you have any Kubernetes Service object, anywhere in your cluster, that listens on port 443 but whose name starts with http (not https), it will break all outbound HTTPS connections.
The instance of this I've hit involves configuring an AWS load balancer to do TLS termination. The Kubernetes Service needs to expose port 443 to configure the load balancer, but it receives plain unencrypted HTTP.
QUESTION
I made my first Java Servlet application with JSPs to create a record about books and display them. The index.html page loads well but the other pages in the project don't work when deployed on GoogleAppEngine. The same project works well when run locally on App Engine through eclipse. I have also enabled sessions in the "appengine-web.xml" but the problem persists. The application works perfectly fine when run locally. Running through the app engine I get the error -
...ANSWER
Answered 2019-Mar-12 at 21:42As you're using Java8 (java8) and as per Google App engine specification try implementing this way :
QUESTION
I have TabView with 3 Tab in MainActivity.I have set data on Tab1 using RecyclerView. Recyclerview is in SwipeRefreshView.When I pull to refresh recyclerview and at same time within second I changed tab the data in RecyclerView at Tab1 get double,triple.How to resolve this to avoid data duplication on Pull to refresh.
This is code to Pull to refresh
ANSWER
Answered 2018-Dec-29 at 11:40Call arraylist.clear() method and recyclerView will not repeat its content after refresh.
Basically arraylist.clear() removes all the elements from arraylist.
QUESTION
In the window for creating and editing records, I have a combobox type field
...ANSWER
Answered 2018-Sep-10 at 06:43So i have two solutions, one to prevent selecting the combo item(but it will remain visible) and the other to hide the values you don't want to be selected(using store filters).
QUESTION
I'm newbie to Spring Cloud. Following the example of Start Guide. I'm stuck at Zuul example.
With a request to zuul, my client app not receive any request from zuul and get 405(Method not allowed) to my browser.
But test without zuul, the client app can response success.
Simple code as this:
Zuul Server:
ANSWER
Answered 2018-Nov-09 at 03:36I downloaded your code and run locally and it worked as expected.
Your Zuul application.properties
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