Loading data from realm file
I like to load the integer from my json using the getter as followed, and it didn’t work. Did I do something wrong int position; Setting setting = new Setting(); position = setting.getRadioPosition();...
View ArticleMaven dependency is not found when that dependency is open in a project in...
The title was a bit difficult to form given the issue. Here is a better explanation. I have 2 projects in an Eclipse workspace, Project A and Project B. Project A is a maven project that compiles to a...
View ArticleConverting pojos to generic records in confluent.io to send through a...
I am completely new to Kafka and avro and trying to use the confluent package. We have existing POJOs we use for JPA and I’d like to be able to simply produce an instance of my POJOs without having to...
View ArticleJunit expect assertion called [duplicate]
This question already has an answer here: How do you assert that a certain exception is thrown in JUnit 4 tests? 18 answers In Junit is there a way to make sure the code makes it past a certain point?...
View ArticleScala: "No Type Args" type constraint
Suppose I have a Java class: public class Foo { public static <T> T doSomething(Class<T>) { ... } public static <T> T doSomething(TypeToken<T>) { ... } } And now I wish to...
View ArticleCreating an Atomic RingBuffer in Java
I was thinking of how I would go about implementing a thread-safe RingBuffer in Java and Android (as for some reason there is none, even after all these years, not even a circular queue. So, no...
View Articlewhy is FileReader not a class in NetBeans?
So I just switched to NetBeans today because my eclipse had been crashing for a bizillion times. However when I am learning something on reading files, I can’t seem to import the class for FileReader....
View ArticleOne method called in several methods
I have a class that looks like this: class A { public void method1(){ iniCall(); // Do something finalCall(); } public void method2(){ iniCall(); // Do something different finalCall(); } // ... more...
View ArticlePassing List of Exception Types as type parameter to generic method
I’m trying to write a generic helper method that’d call methods and handle exceptions if any. The method should be able to accept a List of acceptable Exception types, and handle them in a specific...
View ArticleHow do I take the result of something and use it
I’m trying to take the answer of my multiply code and then store it in a local variable called result public int multiply(int x, int y) { return (x*y); } is what I have so far. After testing it, I get...
View ArticleForeach over certain part of a loop
Let’s say I have the following int array. String[] arr = {"Index0", "Index1", "Index2", "Index3",..."Index n"}; I can iterate over the entire array using: for (String eachIndex : arr){ //Do something }...
View ArticleDateTime Filter AngularJS not Giving Correct Date?
I am using backend as Tomcat which gives me timestamp as follows :- 1448966450000 If I use the website to convert this time to datetime it gives me something like below :- 1448966450000 -> Wed, 02...
View ArticleReading from a file without using Scanner
I’m reading from a pretty simple file that displays items and how much they cost. It looks like this: Shoes 10.00 Jersey 20.00 Cookies 15.00 Light Bulbs 2.00 Paper 5.00 I want to map every item to how...
View ArticleonBackPressed() can’t make MainActivity to reload
I am trying to reload my MainActivity after I do something in my SettingsActivity. My Up button in SettingsActivity works great and reloads MainActivity when returned from SettingsActivity. But back...
View ArticleBoolean "!" Java
I need some clarification. So if someone does: boolean something = false; and then they do: while(!something){ } what exactly is that ‘!’ telling the while to do? also what is the if statement...
View ArticleWCF timeouts only when using binary serialization
We have a .NET 4.0 WPF client application that uses WCF to communicate to a server component (hosted in IIS). Most of the communication is done using basicHttpBinding and SOAP (Content-Type: text/xml);...
View ArticleCleanly wrap a legacy class with lots of overloads behind an asp.net webapi?
I have a class which I need to expose via a WebAPI. However, the class has around ten overloads of the same method, ranging from four parameters up to around 12! I’m not in a position to change this...
View ArticleLearn Java Technologies [on hold]
Sorry for my English. I could be wrong and write unintelligible sentence. But I want to learn English and Java. Please understand )) I learn JavaSE and something from JavaEE in courses. We will go to...
View ArticleHow to stop execution of a called method in java and continue execution of...
Consider the following code snipett: public String testMethod1(int i, int j) { //do something testmethod2(i,j); return "some string"; } public String testMethod2(int i, int j) { //do something if(some...
View ArticleJPA Joined inheritance query
I’m new to inheritance in JPA. I dont know how to query something like this: Let’s suppose a joined inheritance mapping where A is an entity with ‘id’ and ‘name’. And there are entities A1 and A2...
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