I am using Java’s Logger class. I want to pass ex.printStackTrace() into Logger.log(loglevel, String), but printStackTrace() returns void. So I am not able to pass and print the stack trace of the exception. Is there any way that I can convert void into String, or are there any other methods to print th…
Tag: java
After upgrading to Apache HttpClient 4.4 it does not send cookies with requests
I am using the Apache HttpClient to send requests to our internal API servers. The servers require authentication and need a cookie to be set with an auth token. Up to HttpClient 4.3.6 this has been working fine, but on 4.4 and above it has stopped sending the cookies on requests. My cookie domain is set to .…
Java – Check Not Null/Empty else assign default value
I am trying to simplify the following code. The basic steps that the code should carry out are as follows: Assign String a default value Run a method If the method returns a null/empty string leave the String as default If the method returns a valid string set the String to this result A Simple example would …
Edit the cell value at a dynamic TableView?
Is it possible to edit a cell value in a dynamic TableView (dynamic rows and dynamic columns)? All I found on the internet was some editable TextFields over the cells. However, I want to edit the value in the table and then update my List with the new data. I’m using IntelliJ IDEA 13.1.4 , JavaFX Scene …
How to disable button while AlphaAnimation running
I want to disable click on button when the animation running. the code is below: So i want to cant click the button until animation done. Answer I normally accomplish something like this is using an AnimationListener. It allows you to run code at various stages of the animation. This code is untested, but the…
How to assert inside a RecyclerView in Espresso?
I am using espresso-contrib to perform actions on a RecyclerView, and it works as it should, ex: and I need to perform assertions on it. Something like this: but, because RecyclerViewActions is, of course, expecting an action, it says wrong 2nd argument type. There’s no RecyclerViewAssertions on espress…
Properties File multi-line values using PropertiesConfiguration
So far, I have this project where I read in a properties file using PropertiesConfiguration (from Apache), edit the values I would like to edit, and then save change to the file. It keeps the comments and formatting and such, but one thing it does change is taking the multi-line values formatted like this: an…
Trying to print top view of a tree using two if statements
Problem Statement You are given a pointer to the root of a binary tree. Print the top view of the binary tree. You only have to complete the function. My Code: The two if statements are executed every time the function is called, but I need only one of them to execute. I tried switch but its giving constant e…
Implement Cartesian product of several collections by Java Stream
Right now I can only implement the Cartesian product of two collections, here is the code: This code works fine in IntelliJ, but not in Eclipse. Both with compiler compliance level of 1.8: Here is Pair.java: How to fix this error? Is there an elegant way to implement the Cartesian product of several collectio…
How to load an external property file to Spring Boot in Wildfly
I wonder how can I load an external property of my application running inside Wildfly 9 as WAR, I tried to add a java parameter to Wildfly execution but it seems the application did not recognize the properties. Is there any way how Spring Boot could read the external property file? I am trying to load and ru…