Recent questions tagged JAVA

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java - Ant encoding problem on Windows - UTF-8 files but spits garbage on diacritics

Somehow I can't get my UTF-8 sources to play nice with Ant. I get a whole lot of "warning: unmappable character for ... ?? instead of á, í etc). 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 doesn't map folder requests to `index.html` files

I've got static folder with following structure: index.html docs/index.html Spring Boot correctly maps ... appropriate index.html files? 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 - Prevent/Cancel closing of primary stage in JavaFX 2.2

As the title says, my question is, how can I prevent/cancel closing of primary stage in JavaFX 2.2? I have ... done wrong or what am I missing? 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 - Get DNS name of local machine as seen by a remote machine

I'm making a peer-to-peer instant messaging application. Currently, if UserA.pool.net says "hello" to UserB.pool. ... the same text as User B. 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 retrieve day month and year from Timestamp(long format)

I need to retrieve day year and month from a timestamp object as long numbers: public long getTimeStampDay() { ... do that? Thanks in advance. 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 change highlight color on editText field

Below is a screen shot of a custom edit text field i have in my android app. While you are type a ... </android.support.v4.widget.DrawerLayout> 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 - Font resource could not be retrieved

I'm using compileSdk and targetSdk version 27 and in last release I used new font resource feature for my project ... I'm doing something wrong? 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 set "value" to input web element using selenium?

I have element in my code that looks like this: <input id="invoice_supplier_id" name="invoice[supplier_id]" type=" ... to set the value... 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 - Thymeleaf: how to get URL attribute value

I can't find any solution for getting attribute from URL using Thymeleaf. For example, for URL: somesite.com/login? ... if it could be helpful. 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 tell when a File is "Done" copying into a watched Directory?

I'm using the WatchService API to watch a directory, and getting ENTRY_CREATE events when a user ... .mp4, type ENTRY_CREATE 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 - Remove null elements from list

List<String> list = new ArrayList<String>(); list.add("One"); list.add(null); list.add("Two ... current collection without using any iterations? 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 - What is the default scope of a Named CDI bean?

Is there any default scope for a @Named CDI bean without additional @...Scoped annotations? I have not found ... scope seems likely. 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 - slf4j & log4j2 maven setup query

I am using log4j2 and slf4j in my project & using maven for the build. I am using the following pom file ( ... .0.1</version> </dependency> 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 - Is flush() call necessary when using try-with-resources

Will try-with-resources call flush() implicitly? If it does, in the following code snippet, bw.flush() ... /api/java/lang/AutoCloseable.html 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 - Can a non-empty string have a hashcode of zero?

By "non-empty", I mean in this question a string which contains at least one non-zero character. For ... one) or a construction algorithm. 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 - Connection and connection request timeout

I am using Http Apache Components to perform the http interactions. I need to adjust my http client. For this ... they distinct from each other. 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 - SensorEventListener doesn't get unregistered with unregisterListener() method

I have very simple Android app: in activity I have a button and I start/stop the OrientationListener. However, ... the Service - same thing. See Question&Answers more detail:os...

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

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509 views

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java - Velocity nulls and empty strings

In velocity I have a variable which its value is null. I don't want to display anything in that case. Currently ... 'dollar a' to be displayed 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 URL using relative path

I have a URL: URL url=new URL("http://www.abc.com/aa/bb/cc/file.html"); and a relative path: String ... url and relativePath How to do it? See Question&Answers more detail:os...

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

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508 views

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java - Firebase Firestore : How to convert document object to a POJO on Android

With the Realtime Database, one could do this : MyPojo pojo = dataSnapshot.getValue(MyPojo.Class); as a way to map ... .getException()); } }); See Question&Answers more detail:os...

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

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393 views

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java - jar file gets corrupted while building with maven

while building a war file i am copying a set of jars from a location to a folder inside the war. While ... while copying the jars? 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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229 views

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java - ant filtering - fail if property not set

I've got a ant build.xml that uses the <copy> task to copy a variety of xml files. It uses filtering ... I can spare myself the effort. 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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335 views

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java - Jackson JSON deserialization with multiple parameters constructor

I've been using FasterXML/Jackson-Databind in my project for a while now, and all was working ... parameter constructor without annotations? 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 - "Unable to get provider com.google.firebase.provider.FirebaseInitProvider" Error path Android

I have an Application which is connected to firebase.The problem is when install the app in device(working on several devices ... (); } } } } 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 open/run .jar file (double-click not working)?

I can't open or run my .jar file. I just installed java, but I tried to open the .jar with other programs ... executable (but I think it does). See Question&Answers more detail:os...

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

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334 views

1 answer

java - Why spring boot generates jar or war file with .original extension?

Why after building spring boot app, it generates two jar or war files with .original extension? I ... application.war application.war.original See Question&Answers more detail:os...

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

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519 views

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java - Want to specify jar name and version both in build.gradle

I want to specify the jar name and version in build.gradle, so my build.gradle looks like below. apply plugin: ' ... so how can I achieve that? See Question&Answers more detail:os...

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

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190 views

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java - Show decimal of a double only when needed

I got this problem with double (decimals). When a double = 1.234567 Then I use String.format("%.3f", ... more "friendly" code for this. See Question&Answers more detail:os...

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

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