Let’s assume I have StartCommandHandler which has responsibility to create some file with required files. But for doing this I have to give him a set of sub-responsibilities, like: Checks whether file exists in the FTP If Not downloads files from multiple sources to the temp folder Then executes some sc…
Dynamically add chips to chipgroup
I’m trying to add several chips to the chip group dynamically. The first one appears fine but others do not appear properly. But when I do it using XML it works fine. activity_main.xml In MainActivity.java style.xml standalone_chip.xml Answer In your main activity you are doing like this. Notice you are…
SpringBoot DTO Validation
I am new to spring-boot I’m trying to add validation to my DTO class like below. Below is my REST endpoint to save employee. I create a Validation class like below to validate the DTO fields. expected output is { “firstName”:”Employee first name is required”, “employeeNum&#…
“Unable to load Maven meta-data” error from ForgeGradle on Mac OSX?
I am attempting to set up Eclipse and Minecraft Forge with Gradle on Mac OS X so I can try my hand at modding. Whenever I run either of the following commands, Gradle returns the same error: Error: I’ve found a number of issues on the web that seem similar to this, namely this one, but I don’t rea…
how to achieve resizability in javafx?
I have an AncharPane in which all components are placed/designed using Fxml but the problem is, when the frame resize all components are stick with its current position.
Creating a sorted link list out of a normal linked list
As I’ve just started programming a few months back a lot of new information is coming and I’m having trouble catching up.So here I have created what I thought was a sorted linked list.Turns out it is not sorted The method works,it inserts the persons,but they arent sorted like they should be.What …
How to make a program show a toast instead of crashing?
I am working on an app. Here’s a small fragment which converts the entered string to a fraction: This works pretty well, provided you enter the number in the correct format. However, if we mess up the format, example, inserted 2 spaces or ‘/’, the app crashes and closes. I want that if the p…
how to throw an exception to the main method consist of arraylist? [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 2 years ago. Improve this question /Create a method namely callMethod in which display all countries from the arraylist,If more…
How to create a self registering factory in Java?
Factory pattern violates the OCP principle because it uses if() statements, which implies that if any class is added then the factory class has to change, being against SOLID principles. Self registering classes are supposed to address this problem according to this resource: http://www.jkfill.com/2010/12/29/…
Detecting last character
Im trying to detect whether the last character of a string contains an operator using an array checker that was previously used for integers. For some reason the code will always display “Not In” Even …