I’m populating an arraylist in Java, and I’m wondering if it’s possible to cuts some lines by doing the following (except complete): myArraylist.add(new objectname varname (constructor things)); instead of: objectname varname = new objectname(constructor things); myArrayList.add(varname); An…
Tag: java
Accessors not printing out the correct output
I’m trying to get my program to print each of the 4 variables (wholeNumber, decimalPart, positive, currencySymbol) defined in the program below using an accessor for each, however when I go to run the program instead of getting this Expected Output: I instead get this. Could someone explain what error i…
Stop receiving again and again messages in consumer of the queue when an exception occurs in Spring JMS
I send a message from the sender application as below. And in the receiver application, I receive the message as below. The main problem is when the validateEventRequest(event); has called. Because in this method, I have several services and scenarios that might raise an exception. I don’t want if an ex…
problems at splitting strings in java
I’m new to java and I want to know how to splits strings with values. I had an array like this : and I want to divide each string into 3 values, the name (String) the x-value (double), and the y-value (double) firstly I thought of cutting at every space, but for the cities like San Francisco, it wonR…
Should the volatile modifier be added to the object wake-up condition variable?
Please check the sample code below: The above code can run normally, which is very easy to understand, but why the following code can also run normally? I think that in a multi-threaded execution environment, each thread copies the fActiveTestDeathCount variable. If there is no additional volatile modifier, t…
how do I split array element into more element [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed last year. Improve this question this is…
inApp Update, download but not installed
I have a problem with inapp update. A new version window appears, when you press the “Update now” button, unfortunately nothing happens, the application downloads in the background, but nothing happens app is not updated. I would like to add that I am testing it on the “Open Test” in p…
Spring Boot – @Slf4j Logging Behavior differs in Test and in real Application
I have a sample class like this, I have written a test case like this, When I run this test the below items gets printed to console. But when I run the printLogLevel() from application like this, The below lines gets printed to console. Below are the dependencies I have used for this testing. and this is the …
Request had insufficient authentication scopes error when creating teacher through Google Classroom API
I’m trying to create assignments for students through the google classroom api. However, I’ve learned admins can not do that, only teachers. So in our code, after creating a new course we’re then setting the teacher’s email, which is the same as for the admin. However, the code fails w…
jooq multiset jsonb column fails with Cannot construct instance of `org.jooq.JSONB`
i’m having my first hands on experience with jooqs new multiset feature. There is a product table, each product can be assigned a variable number of storages. Each storage may have a storage_coordinate_instance, whereas a storage_coordinate_instance has a column hierarchy which holds the resolved recurs…