Recent questions tagged JAVA

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java - Bottom Navigation Bar: Text size is increasing on pressing?

I am using the Bottom Navigation Bar in Android. By default when I select an item the text size of the ... 'tournaments' stays the same size? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do i compare values of BigInteger to be used as a condition in a loop?

I am trying to compare if the value of one BigInteger(base) is > the value of another BigInteger(prime) and if the ... != one){ break; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to add Properties to an Application Context

I have a Standalone Application, this application calculates a value (Property) and then starts a Spring Context. ... Spring 3.0 Application. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Recompile with -Xlint:deprecation for details

I need to know how to fix these error notes: Note: Summer.java uses or overrides a deprecated API. Note: Recompile with ... June 21st" ); } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to find out if JMS Connection is there?

In JMS it is easy to find out if a connection is lost, a exception happens. But how do I find ... which would facilitate such information. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JVM -XX:+StringCache argument?

I was recently reading about all the JVM arguments available in JRE 6 [Java VM Options] and saw this : -XX:+ ... if this argument works at all. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why can't add element in a upper bound generics List?

I have a list with upper bound generics. List<? extends Number> l = new ArrayList<>(); l.add(new ... because Integer and Double extend Number. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Parsing array of JSON arrays in Groovy

I have the following string from a REST JSON response: [ { "uid":10512213, "name":"Bob" }, { "uid": ... of libraries. (I dont have maven) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Add listener to ArrayList

I have an ArrayList which I add some Objects to it dynamically, and I have a JButton. The ArrayList is empty when ... . How can I achieve this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I tell visualvm where to find my source code?

I'm running VisualVM to profile a simple Java application. When I double-click on a method in the profiling ... tell VisualVM where to look? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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497 views

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java - Create a compareTo to a Generic Class that Implements Comparable

I have a Generic Class with two type variables, which implements java.lang.Comparable. public class DoubleKey<K,J> ... ? Thanks for the help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Hibernate collection is not associated with any session

I have found several questions and answers with regard to this issue on SO, but they all ... :342) at org.springframework.security.web.authentication.AbstractAuthenticationProcess...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to verify that an exception was not thrown

In my unit test using Mockito I want to verify that NullPointerException was not thrown. public void testNPENotThrown{ ... the the test method. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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162 views

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java - @NamedNativeQuery - How can I bind it to a repository method?

I am using Spring + Hibernate and I have a particular case where I need to obtain (a list ... found for type AdDailyDataEntity! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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320 views

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java - JTable Clickable Column Sorting: Sorting sorts content of cells, but doesn't update cell formatting?

I have a sortable JTable set up to use a custom extension of the AbstractTableModel. However, some behavior of this table ... ); return c; } }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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396 views

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java - let Gson throw exceptions on wrong types

I use Gson inside my projects to deserialize JSON-Strings to Java-Objects. If I do a request, I expect a well ... , and throws me an Exception? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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243 views

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java - How can I add files to a Jar file?

I want to add a series of files previously extracted from other files(already done) to a jar. These files will be ... it to be fast. Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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212 views

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java - How to ignore new fields for an object model with Firebase 1.0.2

I'm using the last version at the moment of Firebase dependency, which is 1.0.2 and I'm having problems ... would be changing the mayor version. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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376 views

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java - why from index is inclusive but end index is exclusive?

In Java API methods like: String.substring(int beginIndex, int endIndex) String.subSequence(int beginIndex, int ... designed both inclusive? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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232 views

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java - How do I solve Multiple artifacts of the module X are retrieved to the same file in Apache Ivy?

I was using ANT to deploy my stuff to Tomcat. But I had trouble with missing dependencies and I wanted to add ... solid to me. Any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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240 views

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java - ant junit build error inside eclipse

I am hoping there are some people who have seen and have a solution for the problem that I am having right now ... used, but I might be wrong. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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264 views

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java - Advantage of using 0x01 instead of 1 for an integer variable?

Recently I came across a line like this public final static int DELETION_MASK = 0x01; why is it not like ... just a constant representing 1. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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231 views

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java - Convert a double array to Double ArrayList

When I try to convert a double array to a Double arrayList I got the following error: Exception in thread "main ... the reason for this error. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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394 views

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java - What does 'result' in ExecutorService.submit(Runnable task, T result) do?

Looking at the javadocs it just says <T> Future<T> submit(Runnable task, T result) Submits a Runnable task for ... the type of Future<T>? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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611 views

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java - How to use greater than or equal in a switch statement

What is the best way to check if variable is bigger than some number using switch statement? Or you reccomend ... equal" in switch statements? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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181 views

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java - Android Spinner using ArrayList<String>

I have been using values of spinner from XML string-arrays so far like: Spinner karant_sp; karant_sp = ( ... which works using ArrayList-string. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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java - How to test if a remote system is reachable

I want to test whether a remote system is reachable using Java or in other words "send a ping" using Java. This ... could I do this? Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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305 views

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java - ValueEventListener vs ChildEventListener for RecyclerView in Android

Firebase Database users know that there are two basic listeners for listening Data: ValueEventListener and ChildEventListener ... here is proof. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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