Recent questions tagged java

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java - Auto Log Off once the session expires

Our application logs off after 30 min and gets redirected to login page,i am specifying session timeout ... any methods trigger automatically? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Decoding qr code from image stored on the phone with Zxing (on Android phone)

I have an app that receives qr code from the server. I want to decode it (not with intent and camera) and ... image stored on the phone? Tnx. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Using javamail to send from hotmail?

I've got gmail and yahoo working, but not hotmail. Here's what I have, what am I doing wrong? private String ... errors... So whats the problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - an unsafe implementation of the interface X509TrustManager from google

I hava an app in Google Play, I received a mail from Google saying that: Your app(s) listed at the end of ... all about? How to solve it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to pass data from Recyclerview to Fragment

I have a recyclerView populated in a Fragment and I want to Launch a new Fragment and pass data from ... from recyclerview Adapter to fragmentB See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Lazy/Eager loading strategies in remoting cases (JPA)

I'm running into LazyLoading exceptions like the most people who try remoting with an ORM. In most cases ... cglib proxy behaviour there)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JNA/ByteBuffer not getting freed and causing C heap to run out of memory

Let me start by saying that my understanding of how JNA and Java direct native memory allocations is ... images approximately 3000x2000... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Using GSSManager to validate a Kerberos ticket

I have the following code: public static void main(String args[]) ... == See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring PropertyPlaceholderConfigurer load from DB

Is it possible to load properties from DB with Custom Spring PropertyPlaceholderConfigurer? and is it also ... properties file as fallback See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to map a ResultSet with unknown amount of columns to a List and display it in a HTML table?

I have created a Database Application using Netbeans, GlassFish and JavaDB. Now my controller Servlet code executes some ... me about this ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How can I return value from function onResponse of Retrofit?

I'm trying to return a value that i get from onResponse method in retrofit call request, is there a way that i can ... i can't give it a value. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Play Framework 2.1: Use play.api.Configuration in Build.scala

In the top answer to Play Framework 2: Read the application version defined in Build.scala it's suggested that the ... I had enough rep points) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Hibernate Criteria and multiple join

is possible with Hibernate criteria do it? select A.something, B.something, C.something, D.something from A JOIN B on A ... D ON C.id = D.id_fk; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Hibernate naming strategy changing table names

I'm a little bit confused by hibernates (version 5.1) naming strategy - namely it changes my table name and I ... validator 5.2.4 javassist 3.20 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to implement custom job listener/tracker in Spark?

I have a class like below, and when i run this through command line i want to see progress status. some thing like, ... ; } System.exit(0); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java calling a method from another class

I am working on a problem and I am very stuck because I am just starting to learn java. Any help I can get to ... .println (words[i]); } } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - configure Maven Shade minimizeJar to include class files

I am trying to minimize the UberJar's size by using Maven Shade Plugin's minimizeJar. It looks like minimizeJar ... > </executions> </plugin> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android - activity_main cannot be resolved or is not a field

Previous people have had the same error message, but the solution has always been to remove or modify some ... .NativeStart.main(Native Method) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to accurately determine mime data from a file?

I'm adding some functionality to a program so that I can accurately determine the files type by reading ... any incorrect format exceptions. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Array of abstract class

Why can I not instantiate an abstract class but make an array of the abstract class? public abstract class Game{ ... ... Game[10]; //No Error See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Volatile variables and other variables

The following is from classical Concurency in Practice: When thread A writes to a volatile variable and subsequently ... not grasp. Any help? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Stack overflow when using Retrofit rxjava concatWith

I want to handle pagination in Retrofit using rxjava Observable. I followed the advice from another question. I ... with retrofit and rxjava? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to use spring @Lookup annotation?

I need to get prototype class from singleton. I found that method injection is the way to go, but I don't ... I do that with @Lookup annotation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Apache POI - How to protect sheet with options?

I'm using the Apache POI to generate an Excel File (2007). What I want is to protect the sheet, but with some ... ". Thank you very much! :D See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I find all the Points in a Path in Android?

Awhile back I asked a question to see if I was able to find a pair of specific points in a path ... . I appreciate any helpful responses See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - write newline into a file

considering the following function private static void GetText(String nodeValue) throws IOException { if(!file3.exists()) ... as: i am mostafa See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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144 views

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java - How to create an object pool to be able to borrow and return objects

I wanted to know that, is it possible to create a pool of objects? So that I can take an object from the pool ... I can put it into the pool. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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216 views

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java - Should your class implement ActionListener or use an object of an anonymous ActionListener class

What's the best way for implementing the java.awt.event.ActionListener interface? Have your class implement ActionListener and ... } }); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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