I have the following piece of code: Could you please help me simplify the above by means of the functional programming? I would like to use something similar to Answer Collectors.joining will only insert a delimiter if there are 2 or more elements. In your case, that’s when both are non-empty. If both a…
Tag: java
Adding a String into a scanner
//I wanted to insert a decimal number to console (like 1.85) to the String groesse and I also wanted it to be in the equation of bmi. How do i do that? } Answer How do i do that? OK, so you want to read user input from the console. To do so, instead of … use The same applies
Is it possible to generate Openapi spec file from the another spec with slight modifications?
Suppose I have Openapi specification file (api-docs.yml). I need to create a copy of it with: different servers block filtered paths by tag (with removing unnecessary schemas) Do any solutions exist to make such things, or it’s only possible to write your own parser? I’m using Java so Java-based s…
AnyLogic memory error: how to know how much the threshold is exceeded?
I have a lot of road traffic and markup elements, charts, nodes and arcs within my Main agent. When running the simulation it throws the following error: Description: The code of method _createPersistentElementsBP4_xjal() is exceeding the 65535 bytes limit. I read this article: https://noorjax.com/2018/10/17/…
Out of order BufferInfo.presentationTimeUs timestamps in mediacodec decoder
I am getting irregular newBufferInfo.presentationTimeUs because of which if I put Thread.sleep to slow down the playback, a lot of frames are dropped. Actually, with Surface the frames timestamps are synchronized automatically with system timestamp without sleep, however it does not work with giving output to…
Why am I getting an error when I try to create the Scoreboard object with an array?
The last line in this is giving me an error and I’m not sure why because those are the parameters for the Scoreboard class. Answer Short answer Change to: Longer answer Consider the code: You are not doing the incorrect So as you know, there is no necessity to pass the variable type as well as the value…
Pulsar client thread balance
I’m trying to implement a Pulsar client with multiple producers that distributes the load among the threads, but regardless the value passed on ioThreads() and on listenerThreads(), it is always overloading the first thread (> 65% cpu while the other threads are completely idle) I have tried a few th…
Java: reading objects from file into different derived classes
I have class Employee, and two derived classes Hourly and Salary. Instantiations of those derived classes are placed in the same Array List called employeeList. When I read these objects from file using ois.readObject() how can I ensure the data ends up in the appropriate derived class? Thank you! Answer Note…
Intellij not recognizing wrong return type
I have this method: Now my IDE complains (as expected, and which is correct) about this line, because the return type is supposed to be CacheResult What I currently dont understand, is that the IDE (IntelliJ) is not complaining about this: Which is actually wrong. What am I missing here? Answer This works bec…
How to check if the type is instanceof an interface in java?
I have a class (CreateAccountRequest) that implement an interface(Iloggable), the interface has no method, Just for marking purpose. In my custom RequestBodyAdviceAdapter class, trying to check if the request is an instance of Iloggable, to proceed or ignore the request (for instance do the logging or not ) I…