Recent questions tagged java

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java - GWT to create utility javascript library

I need to create javascript library which will be called from other javascript code. Is it possible to create ... convertion tool is wellcome. 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 - Could not find property 'compile' on org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler_Decorated@397740e0

I was working through a lecture using the parse.com starter program for two days with no issue. I went ... ; uploadSymbols true } */ 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 - What is the buffer size in BufferedReader?

What is the sense of buffer size in the constructor? BufferedReader(Reader in, int size) As i have written the ... . but it was not that. 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 - Get access to USB mass storage device in android

So I have this little cable that you plug into your phone that has a USB port on the other side where you can ... drive? Thanks in advance! :) 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 - Occasional InterruptedException when quitting a Swing application

I recently updated my computer to a more powerful one, with a quad-core hyperthreading processor (i7), thus plenty of ... to a console or log. 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 ignore server cert error in javamail

when i connect to my imap server using imaps,it failes. can you tell me how to ignore server cert error ... ("INBOX").getMessageCount()); 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 - Double subtraction precision issue

My coworker did this experiment: public class DoubleDemo { public static void main(String[] args) { double a = 1. ... work, what should I use? 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 - Jersey exception only thrown when depencencies assembled into a single jar

I'm writing a server that embeds Jetty w/ Jersey. When I execute from Eclipse, everything is great. However, ... > </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 - Socket send and receive byte array

In server, I have send a byte array to client through Java socket byte[] message = ... ; DataOutputStream ... this byte array from client? 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 good is Oracle Universal Connection Pool (UCP)

Does anybody have experience with using Oracle UCP under real production load? Does it handle database reconnects well? ... C3P0 or Apache DBCP? 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 - Find difference between two Strings

Suppose I have two long strings. They are almost same. String a = "this is a example" String b = "this ... check which are those two character? 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 add Tomcat Server in eclipse

I just installed Java EE plugin in plain eclipse and I am trying to add tomcat server. I opened add new ... add tomcat server? Eclipse: Indigo. 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 @Enumerated mapping

Hibernate provides @Enumerated annotation which supports two types of Enum mapping either using ORDINAL or STRING. ... column? Thanks. 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 - What is 'JNI Global reference'

I am using jProfiler to find memory leaks in a Java swing application. I have identified instances of a JFrame ... each instance of the frame? 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 - Similarity Score - Levenshtein

I implemented the Levenshtein algorithm in Java and am now getting the corrections made by the algorithm, a.k.a. the ... people do it and why. 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 syntax: "synchronized (this)"

can you please explain to me this piece of java code? I cannot understand this syntax. synchronized (this) { try { ... catch (Exception e) { } } 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 - What is viewstate in JSF, and how is it used?

In JSF, there is a viewstate associated with each page, which is passed back and forth with submits etc. I know ... idea would be nice. Thanks. 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 - Is there clean syntax for checking if multiple variables all have the same value?

We have n variables X = {x1,x2,...xn} they are not in any structures whatsoever. In python for example I can ... name and lot of them) Thanks. 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 - is it possible to use Gson.fromJson() to get ArrayList<ArrayList<String>>?

let's say i have a json array of arrays String jsonString = [["John","25"],["Peter","37"]]; i would like ... is there a better way to do 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 to set current date and time using prepared statement?

I have a column in database having datatype DATETIME. I want to set this column value to current date and time using ... . How do I do that? 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 - Eclipse can't find / load main class

My Eclipse (Indigo) was running just fine. I created a simple class Hello. It is placed in package cont in ... classes still run under Eclipse? 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 - Specifying order of annotation processors

I'm trying to run Dagger 2 as well as Lombok on my Java project. Lombok has to run first, of course, ... that Lombok seems to run after Dagger. 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 set MimeBodyPart ContentType to "text/html"?

The program below shows an unexpected return value for HTML multipart MIME type. Why does this program print ... activation.jar:mail.jar Main 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 - I have to click the button twice for it to work

So I have a button in my app and an edittext. When I click the button and write something in the edittext, a textview ... } break; } } }); } 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 - Invalid or corrupt JAR File built by Maven shade plugin

After adding the Maven jFree dependency to my existing application, I'm not able to execute the created jar. ... <groupId>org.seleniumhq.selenium</groupId> <artifactId>selenium-fir...

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

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java - (how) can I download an image using JSoup?

I already know where the image is, but for simplicity's sake I wanted to download the image using JSoup itself. ... contents are. out.close(); 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 read BufferedReader faster

I want to optimize this code: InputStream is = rp.getEntity().getContent(); BufferedReader reader = new ... as possible. Thank you 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 - I/O Error: SSO Failed: Native SSPI library not loaded

I am trying to run the following bit of code: import java.sql.DriverManager; public class Connect { public ... Can you spot anything wrong? See Question&Answers more detail:os...

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

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