Recent questions tagged Java

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java - Selenium IEServerDriver not finding new windows for IE9

I am working with Selenium WebDriver to automate my companies site. At one point, the web application opens a ... running on Windows 7 64bit. 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 use ESC () character in XML?

I'm trying this: <root> text:  </root> But parser says: org.xml.sax.SAXParseException; lineNumber: 2; ... 121) How to use it there? 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 - Convert String to/from byte array without encoding

I have a byte array read over a network connection that I need to transform into a String without any encoding, ... way that I have missed? 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 check if the field exists in firestore?

I am checking whether the Boolean field called attending exists, however I am not sure how to do that. Is there a function ... "); } } } }); 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 move contents of one ArrayList to another?

Is there a way to move the entire contents of an ArrayList to another instance of ArrayList in O(1)? I ... the (now encapsulated) ArrayList. 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 automatically populate a 2d array with numbers

Hi i am trying to auto populate a 2d array based on user input. The user will enter 1 number, this number will ... } System.out.println(); } } 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 - eclipse 3.4 (ganymede) package collision with type

We have a package that ends with exception e.g. package a.b.c.exception; Our code base had no issues ... some setting to rectify this behavior? 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 - Spring Boot - Multipart - Unsupported Media Type

I want to send a file and a json model at one post request. My Request Mapping looks like that: ... add(new ResourceHttpMessageConverter()); } 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 - Different behavior of overriding methods and fields

I just noticed that overriding methods does behave different than overriding fields. Considering the following snippet: ... difference? Thanks. 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 - Jsoup selector on RSS <link> tag returns empty string with .text() method

I'm using jsoup to parse an rss feed using java. I'm having problems getting a result when trying to select ... //www.the.blog/category</link> 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 - RegEx to extract text between a HTML tag

I'm looking a regular expression which must extract text between HTML tag of different types. For ex: <span>Span ... this one is not working. 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 - gradle Jigsaw module not found

I try to run a very simple gradle project which uses java 9 modules, but i receive the following error. /home/vadim/ ... do i fix it? 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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java - Checking an array for descending order

I am writing code to check if my array is in ascending or descending order. If the boolean 'ascending' is ... check for descending order } } 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 print an String variable as italicized text

I have the following statements inside my class: String myName = "Joe"; System.out.println("My name is " + ... to be printed as italic text. 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 - JSF - session scoped bean shared by browsers on different machines

We have a search form where the filter is bound to a property on a managed bean (session scope). It's not ... issue already? Any clues? Thanks! See Question&Answers more detail:os...

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

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567 views

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java - Number at f(93) in fibonacci series has negative value, how?

I am trying to printout fibonacci series upto 'N' numbers. All works as per expectation till f(92) but when I am ... range [0..10,000,000]. 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 - Using JDBC when server name contains a backslash (localhostTESTDATA)

thanks for taking the time to read this. I'm completely stumped by what is probably a simple thing. I am ... master;user=sa;password="; Thanks 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 - Strange behavior in regexes

There was a question about regex and trying to answer I found another strange things. String x = "X"; System.out. ... only "nothing"s and not X? 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 create JAXB bindings for docbook

When I run xjc against docbook.xsd, I get a lot of errors: parsing a schema... [ERROR] Property " ... pointers would be apreciated. Thanks. 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 take the union of sets?

Is there any optimal way to get all union of n sets? This is what I have done, but it is very ... intersection of all combinations of n sets See Question&Answers more detail:os...

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

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507 views

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java - getResourceAsStream() returning null in jar but fine in eclipse

I have a program in Java using LWJGL. It runs fine in Eclipse, but when I try to compile it as a jar ... .txt res/testImg.png res/testTiles.png 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 - 'android.annotation.NonNull' is not public in 'android.annotation'. Cannot be accessed from outside package

I get this warning when I try to list data. Does anyone know why? 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 - Spring Boot JPA Lazy Fetch is not working

I have following two domain objects Suggestion and UserProfile They are mapped with each other in one to many ... am I missing here? 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 get the JAR file for sun.misc.BASE64Encoder class?

I have some code in my Activity class that uses sun.misc.BASE64Encoder class. But it is showing java.lang. ... can I download it from? 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 - Junit4 and TestNG in one project with Maven

To run them together there are few options available but I have chosen using different profiles for Junit and ... them and compiling again ? See Question&Answers more detail:os...

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

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607 views

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java - Spark NullPointerException with saveAsTextFile

I'm getting a NPE when trying to coalesce and save out an RDD. Code works locally, and works ... Growable$class.$plus$plus$eq(Growable.scala:48) 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 - Cannot insert non latin symbols in MySQL

I'm writing web-app using MySQL version 5.1.45, Tomcat 5.5.28 and Hibernate 3 When I'm trying to ... doesn't resolve problem Thanks for 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 - Replace multiple characters in String with multiple different characters

I am working on a code that will convert binary digits to its corresponding value in words. For example, I ... Any help is appreciated, thanks! See Question&Answers more detail:os...

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

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