Recent questions tagged java

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java - How to use SendKeys(webdriver) command in Rich Text editor that is located in iframe

I'm facing the following problem.I can not type text in iframe in which there is a text editor:Here is ... .defaultContent(); 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 - Convert Drawable to BLOB Datatype

public Drawable icon; \ Some value in this field I am creating a database in SQLite Manager. I want to store icon ... { sampleDB.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 - Firebase Storage "retrieves a long lived download URL" using getDownloadUrl() now deprecated

This getDownloadUrl() method showed deprecated after updating to 'com.google.firebase:firebase-storage:15.0.2' Nothing on the ... () : null; } } 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 hit highlighter in lucene

I have two questions regarding hit highlighter provided with apache lucene: see this function could you explain ... using FuzzyQuery matching. 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 equivalent of Oracle’s REF CURSOR in MySQL when using JDBC?

In Oracle I can declare a reference cursor... TYPE t_spool IS REF CURSOR RETURN spool%ROWTYPE; ...and use it ... is the equivalent in MySQL? 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 Dependency Injection into JPA entity listener

I need to have a Spring dependency injected into a JPA entity listener. I know I can solve this using @Configurable ... what I'm trying to do? 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 - Implementing Optimistic Locking in Oracle

I am confused about the subject of locking in Oracle. As far as my research has lead me, you can use ... Any clarification 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 - Change background and text color of JMenuBar and JMenu objects inside it

How can I set custom background color for JMenuBar and JMenu objects inside it? I tried .setBackgroundColor and it does not work! 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 Showcase View how to use?

Well For Showcase View I using this: https://github.com/amlcurran/ShowcaseView After importing files it gives error. this ... . it is not clear. 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 packages: cannot find symbol

I'm having a strange error. I have 2 classes in the same package but they can't find each other. From ... both classes then they compile fine. 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 - validate a table's cell using editors

I have a Password field editor for my JTable. I want to display an error message if the text length is less ... ); return this.m_passWord; } } 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 - Why setting setPreferredSize() on JFrame is bad?

Is setting preferred size of JFrame using setPreferredSize() considered bad? If it is bad, what is good way to change JFrame ... ); } }); } } 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 show alert in a jsp from a servlet and then redirect to another jsp?

I tried this but does not display the message only redirects login.jsp <form method="post" action="Login_Servlet" > < ... if so I'm doing 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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106 views

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java - Facebook friend picker SDK sample not working Android

Please help me to get the facebook friends from my profile using 3.14 SDK. ... .setOnDoneButtonClickedListener(new PickerFragment.OnDoneButtonClickedListener() { @Overr...

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

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636 views

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java - Convert the Base64(String or Byte array) to mat(image) in c++(opencv)

Base-64 to Mat conversion opencv: Need: I need to convert base-64 string to Mat ... SjtTm3KmlK8mSo0pSjKVOMpQtytrazbVvR6rtd76t/ntRRRXsGgUUUUAf//Z See Question&Answers more detail:os...

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

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596 views

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java - Log4j2: Dynamic creation of log files for multiple logs

I am currently creating a system that can have modules (think of them as plugins), where each one of them ... the slightest clue is welcome :) 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 - Jackson - Modify an attribute at runtime without annotation

Let's say I have a bean: public class Msg { private int code; private Object data; ... Getter/setters... ... approach I'll take it. 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 - How to work with swing with multiple classes

I just want to know some thing about the swing 1) How to use MVC model in swing? 2)Say i Have an Main ... be the best method to integrate 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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196 views

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java - Can a Kafka consumer(0.8.2.2) read messages in batch

As per my understanding Kafka consumer reads messages from an assigned partition sequentially... We are planning to ... any better solution??? 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 run a thread repeatedly after some interval

I want to run a thread (Which does some time consuming task in background and does NOT update UI) it ... use Handler for implementing 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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241 views

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java - Explanation for SCP protocol implementation in JSch library

I am contemplating over an example of JSch library usage which can be found here: http://www.jcraft.com/jsch/examples/ ... ; //What is 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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758 views

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java - How to add new node to Json using JsonPath?

I'm working with JSON and facing some problems. I want to insert/update a path in a JSON object. In the case ... advice. Thank you very much!! See Question&Answers more detail:os...

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

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254 views

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java - How to set the TimeZone for String parsing in Android

I try to parse a String and set a time zone, but I can't produce the desired result. String dtc = "2014-04 ... hours in advance that is 11:59:02 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 list suggestions to when typing inside the text field

Hi in my Java swing application I need to show all possible existing entries with same initial characters while user ... , that would be great. See Question&Answers more detail:os...

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

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158 views

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java - How to encrypt a .jar file

I'm working in a project where we need to encrypt the .jar file so no one can access to the .class files which ... me to encrypt the .jar file ? See Question&Answers more detail:os...

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

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233 views

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java - Closing jFrame after clicking JButton

I have designed two JFrames in NetBeans. When I click the "rules" button (i.e placed on JFrame1) then it ... on the screen and vice versa. See Question&Answers more detail:os...

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

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146 views

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java - Spring 4 loading static resources

I got a spring MVC application with a bunch of css and js files currently placed in the src/main/java/ ... looking forward to your 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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128 views

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java - Threading UI updates in Android

I've just started with android development and updating the UI is really bugging me :/ This is what I've got ... Threads? 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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