Recent questions tagged java

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java - show Jframe but not show title bar on task bar

In my application, I show a Jframe at the corner of screen for notification. And I want to show only Jframe and do ... bar. How can 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 - Can I list the resources in a given package?

Lets assume my classes are loaded from a compressed .war file or loaded elsewhere, how can I discover all the ... some hacks with listing files. 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 proper way to handle a NumberFormatException when it is expected?

I'm running into this situation where I need to parse a String into an int and I don't know what to do with ... doesn't see this as "unlogged". 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 - split string at index

How would I split a string at a particular index? e.g split string at index 10, making the string now ... 10 and then dumping the remainder. 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 - Getting Selenium to pause for X seconds

What I am trying to accomplish is browsing to a page, waiting for something to load and then taking and saving ... for X amount of seconds? 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 - In Selenium how do I find the "Current" object

I would like for Selenium to navigate a menu via arrow keys--Starting with clicking the top menu item then ... jsut missing some stupid trick. 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 - ArrayList shallow copy iterate or clone()

I need a shallow copy of an java ArrayList, should I use clone() or iterate over original list and copy ... new arrayList, which is faster ? 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 - Determining location of JVM executable during runtime

How does one obtain the location of the executable of the currently running JVM during runtime? I would like ... 's idiosyncrasies into account? 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 - Extend from Generic Supertype?

In Java, am I able to extend from a generic supertype? According to this article, it looks like I should ... the potential problems of 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 - NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;J)V

What Google Maven dependency could fix this error: java.lang.NoSuchMethodError: com.google.common.base.Preconditions. ... return 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 - Spring Boot - repository field required a bean named 'entityManagerFactory' that could not be found

I am in the process of developing a Spring Boot application and came across this error when starting the ... ' in your configuration. 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 8 - Drawbacks of javac -parameters flag

I want to try some frameworks features that required names of parameter in runtime, so I need to compile my ... exist of this parameter usage? See Question&Answers more detail:os...

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

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140 views

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java - Android CalendarView class cannot be found

Im designing the xml format for a calendar to be used in an app, but I cant get the calendar to ... </RelativeLayout> Much appreciated! 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 - Why is there a "d" in the definition of Double.NaN = 0.0d / 0.0?

I just came across the definition of NaN in Double.class. It says: /** * A constant holding a Not-a-Number ... Was this on purpose or by chance? 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 Studio - Keystore was tampered with, or password was incorrect

I am trying to generate a signed APK by using the built-in widget in Android Studio v1.4. However, I got this ... what's wrong with it then?? See Question&Answers more detail:os...

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

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99 views

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java - What is x after "x = x++"?

What happens (behind the curtains) when this is executed? int x = 7; x = x++; That is, when a variable ... book, it says that x is incremented! See Question&Answers more detail:os...

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

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115 views

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java - Get visible text of page

How do I get the visible text portion of a web page with selenium webdriver without the HTML tags? I need ... I am not interested in them. See Question&Answers more detail:os...

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

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237 views

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java - Difference between Calendar.HOUR and Calendar.HOUR_OF_DAY?

What is the difference between Calendar.HOUR and Calendar.HOUR_OF_DAY ? When to use Calendar.HOUR and Calendar. ... . Any suggestions 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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309 views

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java swing multi column autocomplete combobox

I need efficient product item search GUI to Point of sale application, currently I am using pop up in text field and it ... if (m.isEmpty() || shouldHide) { comboBox.hidePopup();...

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 - Upload files using selenium

How to upload files from local via window prompt using selenium webdriver? I want to perform the following actions: ... ' to upload the 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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174 views

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java - Add background image in JTable

I am using a JInternalFrame in that i have added JTable. Now i want to show background image in JTable. so i ... can any one help me on 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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306 views

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java - Weird color changes on hovering on JButton

Ok so this was a problem I stumbled upon when I wanted to use transparency.. So the code for changing ... what is the correct approach? See Question&Answers more detail:os...

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

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126 views

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java - Unable to connect to internet in Blackberry device?

I am developing an app where i am using browser field to load html files in it. My code is as follows. Main. ... anyone help me with 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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173 views

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java - How can I work around YouTube API embed restrictions like other websites?

I am building a java program that has the option to play YouTube videos in an embedded player ... codingfabian/status/524942996748652544 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 Remove The Last Image In An Animation

What I am trying to do is create an animation that creates a 'running' motion. Whenever I draw it on ... while removing the trailing images? See Question&Answers more detail:os...

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

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118 views

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java - Use MultiThreading to read a file faster

I want to read a file of 500 Mb with the help of 2 threads, so that reading the file will be much ... for the task using core java concepts. See Question&Answers more detail:os...

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

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276 views

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java - Adding background in jButton (netbeans gui builder)

When i try to add background in Jbutton in java by going to its properties and then icon, it then sets the ... .What is the solution for 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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234 views

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java - Progress bar updater using up CPU

I want to keep my user informed of the progress of an I/O operation. At the moment I've got an inner class ... it from using so many CPU cycles? See Question&Answers more detail:os...

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

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