I’m trying to run an async bash command from a java file and wait for it to finish before I continue the java code execution. At this moment I’ve tried using Callable like so: and I call it like so: Thanks!!! Answer An easier way is to use Java 9+ .onExit(): If you want to block anyway, use .waitF…
How to count the number of a user entered character in an array?
I have a Java assignment where I need to read in a Character and then count the number of times that character appears in the array. This is what I have so far. Answer Here you go:
Boolean failing to return the correct value
I have four classes Customer, Store and Item and Online. I am using ‘LinkedList’ to move around classes. I added items at the Customer class. When I want to check whether the item under exists or not under Online class. Because you cannot check at the Customer. I use the hasItem().It’s faili…
Read OGG as stream of samples for LWJGL 3 OpenAL
I’m making a game with LWJGL 3, and for the first time I’m learning about the OpenAL library. I’m going to have to include long audio files, and I have decided that OGG will be used for the audio, since music would otherwise take up a lot of space. What I don’t know, though, is anythin…
How to create pointcut to feign client that supports interface inheritance?
In a Spring Boot project I have a simple feign client I need to intercept all calls and for this and I’m creating a common library that can be used in different projects. To achieve it I try to use Spring AOP. I created an aspect that wraps all public methods of the object annotated with MyAnnotation It…
How to properly access a secured Spring Data REST Repository in a ApplicationRunner?
I followed the documentation on how to secure REST repositories with @PreAuthorize. However, the following repository needs to be accessed by an ApplicationRunner to perform some initial setup tasks after application startup. Since there’s no security context active when this runner is executed the appl…
javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted:
I’m getting the following error while trying to run on devices below android lollipop and it is working really well for version above lollipop. this is my method to register the user: My volley singleton looks like this: and my app config file looks like this: Can anyone help me solve this issue? Error:…
Getters and setters not working as it should
I need help im working on an assignment and getters and setters are not working. so im using an action listener when add amount is clicked it should add the amount that was entered to deposit amount …
Calculate the percentage of value using Collection framework
I have List of TrainingRequest where each and every element has List of Feedback. I need to get all given result of Q1,Q2 and calculate percentage of each value. To flat all the feedback To calculate each value of Q1 and Q2, I’m grouping it and getting the count. I need to get the percentage of each Q1,…
Executor Service – InvokeAll: How to Map response?
I am working on parallel execution of 5 Tasks with Executor service, all the 5 tasks returns back with different object results-set depending upon the task. I am using executor service for parallel execution of tasks : But how do we map the result set back with the task(s) ? It may not return back the respons…