Data dodania Pytanie
2017-04-22 18:04 How to synchronize Play Services Real Time Multiplayer »
I am developing an online version of the popular game Pong using Libgdx. I've started using Google's Realtime Multiplayer service to send the game dat...
(1) odpowiedzi
2017-04-22 18:04 Building TAR file with USTAR header in Coldfusion »
I am building a TAR archive in ColdFusion. Someone was nice enough to help me figure out how to do that with JAVA, but the system I'm submitting the T...
(0) odpowiedzi
2017-04-22 12:04 Correct way to use VarHandle in Java 9? »
I have been spending much time investigating some of Java 9's new features, but I didn't find any useful and practical examples. Consider next code s...
(1) odpowiedzi
2017-04-22 11:04 Java - how does Lock guarantee happens-before relationship? »
Let's consider the following standard synchronization in Java: public class Job { private Lock lock = new ReentrantLock(); public void work() ...
(2) odpowiedzi
2017-04-22 11:04 JSON format using Gson »
I am returning a dataset from database in List and converting them into a JSON as below. List<DensityGroup> dg = pdao.getProductPropListData("D...
(1) odpowiedzi
2017-04-22 07:04 how to set values from sql database to java textbox? »
When I try to access data from SQL Server, the data column is of type varchar. But I try to set it into textbox, I got these type of exception Conver...
(2) odpowiedzi
2017-04-22 00:04 Coming from C, I need some help figuring out, how to best generate Chess-Bitmaps from an input-string »
I'm attempting to generate some Bitmaps from an input-string for the chess-variant "Anti-King Chess". Unfortunately I have to do it in Java, which I'm...
(3) odpowiedzi
2017-04-21 16:04 How to overcome org.springframework.dao.RecoverableDataAccessException? »
Dear StackOverFlow Community, I keep receiving connectivity issues when connecting my Spring project to a MySQL server. I have tried various tricks ...
(0) odpowiedzi
2017-04-21 13:04 combining multiple SQL tables »
I'm trying to create a friends list when a user logs into my java applications. I have 3 tables, USERS, FRIENDS and SONGS. The user table: ID| USERN...
(2) odpowiedzi
2017-04-21 12:04 Obtain a string from the compressed data and vice versa in java »
I want to compress a string(an XML Document) in Java and store it in Cassandra db as varchar. I should be able to decompress it while reading from db....
(2) odpowiedzi
2017-04-21 10:04 Why does Array elements have to be of the same type »
Array DS requires all its members to have the same time. Java throws ArrayStoreException when an attempt has been made to store the wrong type of obje...
(3) odpowiedzi
2017-04-21 09:04 Looping through RegEx matches and replace the current match »
Consider the following string: He ordered a pizza with anchovies. Unfortunately, it wasn't the thing he wanted. Besides, pizza with mushroom, pepp...
(1) odpowiedzi
2017-04-21 08:04 Cleaner way around repeated if statements / null checks in Java »
I've got piece of code where fk variable is setting. There is view way to set value for this variable, but i've to check everytime if fk variable is ...
(0) odpowiedzi
2017-04-21 04:04 How can angularjs ui-router controller read parameter from a java backend redirect? »
Route definition as follow: .state('about', { url: '/about', controller: 'AboutCtrl', templateUrl: 'views/about...
(1) odpowiedzi
2017-04-21 03:04 Java Convention to Return List of Own Instances? »
I have a question about Java Coding Style. I coded: public class Pattern { public Pattern(...) { ... } public static List<Pattern> ge...
(1) odpowiedzi
2017-04-20 23:04 Storing sql queries in enum. Is it good practice ? »
Is is a good practice to use an enum to store sql queries as constants ? I already have more than 20 private static final queries in my class, so I...
(0) odpowiedzi
2017-04-20 20:04 how can i implement specific method from two different abstract class? »
I want to access all the methods(non-abstract+abstract) from Class A. So i extended Class A, but here in Class B i want to access all non-abstract me...
(1) odpowiedzi
2017-04-20 17:04 Why does this method reference assignment compile? »
I'm struggling to see why the following code compiles: public class MethodRefs { public static void main(String[] args) { Function<Me...
(5) odpowiedzi
2017-04-20 09:04 RxJava2 dispose() doesn't work if called on the object returned by doOnSubscribe() »
I've got a problem with understanding why the following code doesn't work. Am I doing something wrong or is it some kind of bug in RxJava2 implementat...
(1) odpowiedzi
2017-04-20 02:04 Retrofit says auth token exists when logged out »
When I log into my account in my app, I save an auth token in my SharedPreferences, like this: PreferenceUtils.setAuthToken(LoginActivity.this, authT...
(2) odpowiedzi
2017-04-19 23:04 What is lub(null, Double)? »
Table 15.25-B in JLS version 8 says that the type of a conditional expression true ? null : 0.0 is lub(null,Double), where lub appears to be some c...
(2) odpowiedzi
2017-04-19 21:04 How to change action bar button in android »
I want to make the back button in the action bar to look like this "<" and not arrow like "<-". Please let me know how to do it. ...
(2) odpowiedzi
2017-04-19 21:04 Java8 Stream of files, how to control the closing of files? »
Suppose I have a Java8 Stream<FileReader> and that I use that stream to map and such, how can I control the closing of the FileReaders used in t...
(4) odpowiedzi
2017-04-19 17:04 Does this function call itself or call the overload? »
Consider two overloads: public void add(Integer value) { add(value == null ? null : value.doubleValue()); } and public void add(Double...
(3) odpowiedzi
2017-04-19 07:04 Saving nested JSON data into a MySQL database using Hibernate »
I am strucked with this issue. I have created a POJO for nested JSON and I am getting data in MarketPrice object where marketPrices is an ArrayList wh...
(2) odpowiedzi
2017-04-18 14:04 Convert List of key - value Object pairs to simple Multimap using Java 8 API »
Having list of key - values: public class KeyValue { private Long key; private Long value; public KeyValue(long key, long value) { ...
(1) odpowiedzi
2017-04-18 14:04 How to extract a method across files? »
In all my java files of my project, I want to replace occurrences of this: myObject.getName() == null With that: myObject.hasName() Is there any...
(3) odpowiedzi
2017-04-18 14:04 why is java taking long time initializing two dimensional arrays starting with the first dimension having a big size number? »
I have noticed that initializing 2D array like this case 1 :- int ar [] [] = new int [10000001][10] ; taking more time than initializing it like...
(1) odpowiedzi
2017-04-18 13:04 How to include a War file instead of Jar file »
First of all I am a ColdFusion developer and do not really know how Java works. I have a situation whereby we need to integrate a Java client file in...
(0) odpowiedzi
2017-04-18 03:04 How to check if a message has a combined character in it? »
Example: กิิิิิิิิิิิิิิิิิิิิ ก้้้้้้้้้้้้้้้้้้้้ ก็็็
(1) odpowiedzi
2017-04-17 21:04 How to migrate Spring Boot JMS from ActiveMQ to Oracle Advanced Queueing »
I'm studying the Spring Boot and JMS example and yes, I'm rather new on this Since we work with Oracle, I would like to migrate the Spring Boot &...
(1) odpowiedzi
2017-04-17 17:04 Initializing an ArrayList whose type is specified by the user »
I'd like to initialize an array whose type is specified by the user via command line. That is, if user enters "int", I'd like to do: ArrayList<Int...
(1) odpowiedzi
2017-04-17 16:04 Is calling equals() on the same instance faster than on changing instances? »
Is there any reason that: public void test(Object object) { for (Object other : otherObjects) { object.equals(other); } } could be ...
(3) odpowiedzi
2017-04-17 14:04 When to use multi-catch and when to use rethrow? »
I'm very uncertain about this two topics. I know that i should use multi-catch for exceptions which need to handle the same way. But for what purpose ...
(3) odpowiedzi
2017-04-17 13:04 Spring. How to add same property to multiple beans? »
Consider I have something like this in beans.xml: <bean id="emails" class="org.some.package.SomeClass"> <property name="emailList"> &...
(1) odpowiedzi