Recent questions tagged java

0 votes

245 views

1 answer

java - Tomcat 7: How to set initial heap size correctly?

I was trying to adjust initial heap size of a tomcat 7 (CentOS, java -version: 1.6.0_25-b06) instance by ... What is wrong with these options? See Question&Answers more detail:os...

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

0 votes

393 views

1 answer

java - JSON Jackson parse different keys into same field

I have a POJO which has a field: public class Media { private Asset asset; } Everything works perfectly when ... appear in the same response. See Question&Answers more detail:os...

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

0 votes

311 views

1 answer

java - Why do I get "must override a superclass method" with @Override?

The following code generates this error message at the public void onClick line. Multiple markers at this line - implements ... ; } } }); } See Question&Answers more detail:os...

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

0 votes

215 views

1 answer

java - Limiting the number of characters in a string, and chopping off the rest

I need to create a summary table at the end of a log with some values that are obtained inside a class ... that exceed the maximum length. See Question&Answers more detail:os...

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

0 votes

308 views

1 answer

java - Organize Imports Automatically

When using Eclipse, I find myself typing Ctrl+Shift+O several times, to organize imports (usually imports which are no ... time I save a file? See Question&Answers more detail:os...

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

0 votes

274 views

1 answer

java - Android X: tools:replace specified at line: for attribute, but no new value specified

I have tried many solutions on this website but still, the problem is not solved. The issue is ... ,HardcodedDebugMode"> ... See Question&Answers more detail:os...

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

0 votes

134 views

1 answer

java - Where are all the standard Android icon resources?

I have just started writing my first ever Java/Android application, so forgive the total n00b question. How do you ... could then find the icon. See Question&Answers more detail:os...

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

0 votes

129 views

1 answer

java - how do I get file size of temp file in android?

if I use openFileOutput() to create and write to a temp file how do I get filesize after I'm done writing to it? See Question&Answers more detail:os...

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

0 votes

578 views

1 answer

java - spring data jpa @query and pageable

I'm using Spring Data JPA, and when I use @Query to to define a query WITHOUT Pageable, it works: public ... String text, Pageable pageable); } See Question&Answers more detail:os...

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

0 votes

115 views

1 answer

java - XML Diff and Merge

I think i have a rather unique problem to solve. Well, i cant find enough information using Google. So here it ... . ?) I appreciate your time. See Question&Answers more detail:os...

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

0 votes

178 views

1 answer

java - How do I write a restful web service that accepts a binary file (pdf)

I'm trying to write a restful web service in java that will take a few string params and a binary file ( ... .toByteArray(); return byteArray; } See Question&Answers more detail:os...

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

0 votes

272 views

1 answer

java - How to resolve javax.mail.AuthenticationFailedException issue?

I am doing a sendMail Servlet with JavaMail. I have javax.mail.AuthenticationFailedException on my output. Can ... useEhlo true, useAuth true See Question&Answers more detail:os...

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

0 votes

187 views

1 answer

java - How HashTable and HashMap key-value are stored in the memory?

I understand there is a hashing technique is applied to a key to store its value in the memory address. But I don ... a memory space? Is it MD5? See Question&Answers more detail:os...

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

0 votes

338 views

1 answer

java - Make a certain part of a android-textview align to the right

I have this TextView. Some parts of it is supposed to be aligned to the left and some parts to the right. How ... none of them seems to work. See Question&Answers more detail:os...

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

0 votes

157 views

1 answer

java - is it possible to overload a final method

In java we cannot override a final method but is it possible to overload ? See Question&Answers more detail:os...

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

0 votes

257 views

1 answer

java - JVM Process vs JVM Heap memory usage

I have read through this Process Memory Vs Heap -- JVM and i have the same problem. The jvm process memory ... process is using more than 900m. See Question&Answers more detail:os...

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

0 votes

302 views

1 answer

java - How to add a widget to the Android home screen from my app?

I'm writing an application which should be able to add widgets (just text boxes) to the home screen of the ... widget but how about adding more? See Question&Answers more detail:os...

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

0 votes

163 views

1 answer

java - How to compose Observables to avoid the given nested and dependent callbacks?

In this blog, he gives this (copy/pasted the following code) example for the callback hell. However, there is no ... void call(T value); } } See Question&Answers more detail:os...

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

0 votes

479 views

1 answer

java - Breaking down RSA/ECB/OAEPWithSHA-256AndMGF1Padding

Java has a mode called RSA/ECB/OAEPWithSHA-256AndMGF1Padding. What does that even mean? RFC3447, Public-Key Cryptography ... I'm just guessing.. See Question&Answers more detail:os...

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

0 votes

130 views

1 answer

java - AWS Lambda connecting to Internet

TL;TR I am trying to connect to internet from AWS Lambda, I have a private subnet with a NAT Gateway but still the ... If I don't select my VPC See Question&Answers more detail:os...

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

0 votes

162 views

1 answer

java - JAX-WS Password Type PasswordText

I've got a simple command line Java JAX-WS app to test a SOAP request, but the server is expecting the ... type would be appreciated. Thanks. See Question&Answers more detail:os...

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

0 votes

402 views

1 answer

java - How can I use OpenOffice in server mode as a multithreaded service?

What is the experience of working with OpenOffice in server mode? I know OpenOffice is not multithreaded and now I ... problem? I'm using Java. See Question&Answers more detail:os...

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

0 votes

370 views

1 answer

java - Spring MVC 3: Returning XML through @ResponseBody

Pardon me for posting this noob question, but I have been debugging this problem for quite awhile now. I'm ... get this working? Thanks much. See Question&Answers more detail:os...

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

0 votes

232 views

1 answer

java - Spring JPA and persistence.xml

I'm trying to set up a Spring JPA Hibernate simple example WAR for deployment to Glassfish. I see some examples ... "em" in to StudentService? See Question&Answers more detail:os...

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

0 votes

383 views

1 answer

java - Best way for allowing subdomain session cookies using Tomcat

By default tomcat will create a session cookie for the current domain. If you are on www.example.com, ... definitive solution to this problem. See Question&Answers more detail:os...

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

0 votes

154 views

1 answer

java - Can I run from command line program created by Eclipse?

Using Eclipse I have created a SWT Hello World program. I was able to run this program from Eclipse and it ... you in advance for any help. See Question&Answers more detail:os...

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

0 votes

264 views

1 answer

java - Is doFilter() executed before or after the Servlet's work is done?

The javax.servlet.Filter object can be used both for authentication (where the Filter needs to catch the ... get executed before BarFilter? See Question&Answers more detail:os...

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

0 votes

224 views

1 answer

java - What is the difference between synchronized(this) and synchronized method

Lets say we have these 2 sample code : public synchronized void getSomething(){ this.hello = "hello World"; } ... me what's the difference now? See Question&Answers more detail:os...

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

Categories

Just Browsing Browsing

Most popular tags