Data dodania Pytanie
2017-04-15 07:04 Java android regex groups return with null »
So when I use regex replace in pc Java it works fine. But when I do it with Android Java all responses that are null return with null. How can I re...
(0) odpowiedzi
2017-04-15 04:04 CSRF filter blocking AJAX Post request. How to set httprequest parameter for AJAX request »
I am currently trying to send an AJAX post request, however I am unable to do so, because of my CSRF Filter. I have tried a bunch of things, but the f...
(0) odpowiedzi
2017-04-15 02:04 Struggling with understanding <? extends T> wildcard in Java »
I have a very basic question. The code below doesn't compile (assume Apple Extends Fruit): List<? extends Fruit> numbers = new ArrayList&l...
(2) odpowiedzi
2017-04-14 18:04 Java - Why declare an array as a type of Interface? »
This is from Professor Mark Weiss in his book Data Structures and Algorithm Analysis in Java public class BinaryHeap<AnyType extends Comparable&lt...
(1) odpowiedzi
2017-04-14 18:04 How to suitably compose Predicate and Function in a Java function? »
The purpose is to create a new Predicate usable in a stream filter : myCollectionOfElement .stream() .filter( MyStaticHelperClass.compose(MyStati...
(0) odpowiedzi
2017-04-14 12:04 How to check if date is between interval in java? »
I have six int variables: currentMonth, currentDay, monthFrom, dayFrom, monthUntil and dayUntil. I need to check if todays month and day falls within ...
(4) odpowiedzi
2017-04-14 11:04 How does one properly initialize a JTextPane StyleSheet, so no other HTML enabled component is affected by the style? »
I'm trying to use a JTextPane to render some HTML and apply a CSS stylesheet to it. This means I'm using HTMLEditorKit and StyleSheet classes. I know ...
(1) odpowiedzi
2017-04-14 08:04 Fastest way to compare millions of rows in one table with millions of rows in another »
I want to compare two tables with million of records in each table and get match data from the comparison. To get the match data from both the tables...
(2) odpowiedzi
2017-04-14 04:04 How to handle OutOfMemoryError while working with HashMap<String, Integer> »
Before starting to explain my problem, I should mention that I am not looking for a way to increase Java heap memory. I should strictly store these ob...
(2) odpowiedzi
2017-04-13 20:04 java weird assignment rules »
short s = 'a'; // valid Short ss = 'a'; // valid int i = 'a'; // valid Integer ii = 'a'; // invalid Why Integer ii = 'a' inval...
(1) odpowiedzi
2017-04-13 17:04 Inner lambda reference Outer lambda variable »
There is a Outer lambda that contains inner lambda whis tries to reference var in Outer lambda, how does it possible? Im try to understand what this e...
(2) odpowiedzi
2017-04-13 17:04 Microservices UI Frontend with ReactJS »
My current design is to have clients connect to my Web API Gateway using a browser, the Web API Gateway will call each microservice to get their (Reac...
(1) odpowiedzi
2017-04-13 16:04 Java: Many-object variable ( static ) »
I am new to object oriented coding and I have the following problem. (note that this solution is part of my problem) I need a variable that many ob...
(2) odpowiedzi
2017-04-13 16:04 About causing too many open files with java? »
When review colleague's code , found below code BufferedReader br = new BufferedReader(new FileReader(PATH + fileName)); //... just read a ...
(3) odpowiedzi
2017-04-13 11:04 facebook Auth using restapi:Getting java.lang.IllegalArgumentException »
i am using the following code to login with facebook callback url got invoked and i got the access code but when i try to get the access token followi...
(0) odpowiedzi
2017-04-12 22:04 Exception handling practices of multiple exception throwing functions »
If I have multiple functions in a function which are throwing exceptions what's the best way of handling them if they depend on each other? With depe...
(2) odpowiedzi
2017-04-12 21:04 How to shutdown jshell at the end of the script? »
How to instruct jshell to terminate at the end of the script similarly to interpreters of other languages like for example python3 or node? Following...
(1) odpowiedzi
2017-04-12 21:04 Java 8 stream min is not returning expected value »
I am looking to get minimum value from a list of maps in java. I am using combination of flatmap,stream and min to do so and not getting expected resu...
(2) odpowiedzi
2017-04-12 13:04 How to extend the following Java class in Scala: class A<T extends Comparable<? super T>> »
I need to extend a Java class (from a library) of the following type: public class A<T extends Comparable<? super T>> { } I tried to im...
(3) odpowiedzi
2017-04-12 12:04 Converting Thread/Runnable implementation from Java to Kotlin »
I have an existing Java class ThreadUtils with a method every that looks like: public class ThreadUtil { public static Thread every(int seconds,...
(1) odpowiedzi
2017-04-12 10:04 How to reduce list to map with Java functional API »
I want to transform a string of text to a dictionary, which contains all the unique words as a key, and translation as a value. I know how to transfo...
(3) odpowiedzi
2017-04-12 04:04 Removing all fraction symbols like “¼” and “½” from a string »
I need to modify strings similar to "¼ cups of sugar" to "cups of sugar", meaning replacing all fraction symbols with "". I have referred to this po...
(2) odpowiedzi
2017-04-11 22:04 Java: Executor Service with multiple queues »
Requirement: I have messages grouped into different types e.g Type1, Type2 ... Type100. I want to execute different types of messages in parallel. L...
(3) odpowiedzi
2017-04-11 19:04 Add record="RECORD_FROM_RINGING" attribute to TwilioML XML using Java in ColdFusion »
We are using ColdFusion and Java to generate the Twilio Markup / XML necessary for handling Twilio calls in our webhook. Currently, everything works...
(1) odpowiedzi
2017-04-11 15:04 Does static modifier change the access level of a class member in java? »
I am reading the book of OCA & OCP for java 7 certification and I am trying the exercises of the book with java 8 and I noticed something wired. ...
(2) odpowiedzi
2017-04-11 11:04 How to check if a key exists in Json Object and get its value »
Let say this is my JSON Object { "LabelData": { "slogan": "AWAKEN YOUR SENSES", "jobsearch": "JOB SEARCH", "contact": "CONTACT", "v...
(8) odpowiedzi
2017-04-11 10:04 cmd.exe is hanging unexpectedly depending on where the file I use is located »
This has got to be one of the strangest things I have ever observed. Consider the following Java program: import java.io.IOException; public class S...
(2) odpowiedzi
2017-04-10 17:04 Finding the sum of common elements between n number of arrays in java »
I have a program that sums the common elements of two arrays. For that I used two for loops and if I have three then I could use three for loops. But ...
(3) odpowiedzi
2017-04-10 15:04 Esper display context partitions using EPContextPartitionAdmin (JRuby) »
I have a working Esper instance running using JRuby. I have have created a context, some EPL statements and got the events flowing, everything is work...
(0) odpowiedzi
2017-04-10 14:04 Boolean return of set.add() in if conditional? »
The add operator of the set class returns a boolean which indicates whether the added element already existed in the set. Is writing if (set.add(entr...
(1) odpowiedzi
2017-04-10 10:04 RGB colors in java Vs VB.net »
I'm no native English speaker, so please excuses any translation errors. I'm not really having a coding problem. It's more of a conceptual question. ...
(0) odpowiedzi
2017-04-10 06:04 Java : Creating chunks of List for processing »
I have a list with a large number of elements. While processing this list, in some cases I want the list to be partitioned into smaller sub-lists and ...
(3) odpowiedzi
2017-04-10 01:04 Java Streams: filter().count() vs anyMatch() »
I want to find if a stream of strings has at least one occurrence of another String in a Set<String>. I came up with two solutions. Performance...
(2) odpowiedzi
2017-04-09 20:04 Java: Defining a generic method inside an anonymous class »
The following java code works fine. public static void main(String[] arg){ JPanel p = (new JPanel()); p.add( new Object(){ JButton f(...
(2) odpowiedzi
2017-04-09 18:04 Invalid conversion requested, oracle.jdbc.driver.T4CVarcharAccessor.StringToNUMBER »
I am using oracle 12c with hibernate-core 5.0.1.Final. Table sturcture as follows create table tracer ( id number(10,0) generated as identity, cr...
(0) odpowiedzi