Recent questions tagged java

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java - How to customize a tooltip of CategoryPlot items in JFreeChart?

I need to change the format of the default tooltip in the bars drawn in the plot of a chart. I don't ... redefine this value? 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 - Adding files to ZIP file

I am trying to add some files to a ZIP file, it creates the file but does not add anything into it. Code 1: ... into a ZIP in the F: drive 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 - Item in JComboBox instance of an object

Hello I have the following code to see if an item in the JComboBox is instance of a class(Persoon). public ... the same as in the JComboBox? 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 - BufferedReader readLine method hangs and block program

I'm trying to learn sockets using Java and I sucessfully sent data to a ServerSocket running in my own machine ... relation I'm overlooking? thx 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 - Redirecting to a correct action after authentication interceptor in Struts 2

I'm using Struts 2 and I have a private package of actions, because certain actions require login to be accessed. So ... . 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 - Access GUI components from another class

I'm new to Java and I've hit a brick wall. I want to access GUI components (that have been created in one ... ... frame.setVisible(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 - How to draw a transparent shape using a Graphics object g?

I want to create a ring in a BufferedImage with a transparent background. I can draw the circle with a ... best way to tackle this problem? 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 listen to "ACTION_DOWN" (key pressed) event in Android onMediaButtonEvent, in order to measure the time?

I try to get the time System.currentTimeMillis(), than the user presses the media button. But the callback ... too small between these values. 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 - Extremely simple code not working in HtmlUnit

I'm working with HtmlUnit 2.9 (the stable version that was released this month). Do you have any idea why ... the loop? 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 - Reading huge line of string from text file

I have a large text file but doesn't have any line break. It just contains a long String (1 huge line of String ... buf.readLine()) != 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 - The validation concept understanding in Struts 2

I don't understand conception of Struts2 validation in next case : My application consists of 2 actions: login. ... password in login.action? 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 - Sending File from Server to Client by using Netty.io

I'm trying to send a file, a client requested from the server, from the server to the client. The ... ; workerGroup.shutdownGracefully(); } } 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 - Running a JFrame with a JProgressBar

public void myMethod { MyProgessBarFrame progFrame = new MyProgressBarFrame(); // this is a JFrame progFrame. ... do processing section? 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 can't receive push notifications in app from Parse

I configured Parse API in my app and everything works except push notifications. I tried to send them from the ... > </receiver> </application> 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 role of operand stack in JVM?

JVM Run-time Data Areas separate stack for each method being executed. It contains operand stack and local ... some seemingly repeated 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 - Drawing between 2 images in 1 JPanel

I want to draw the lines between 2 JScrollPanes (first scroll pane on the left side, second on the ... apologize for poorly formulated question. 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 - Does <f:convertNumber> use the right number separator when using patterns to format currency?

Suppose I have the following <f:convertNumber> to format a currency-type number: <f:convertNumber type=" ... the right number separator. 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 - ASyncTask on Executor and PriorityBlockingQueue

I'm trying to make some ASyncTask to run simultaneously with a priority. I've creating a ThreadPoolExecutor with an ... can I solve that? 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 - cannot instantiate a class using a button

I am trying to make a screen capturing program. What I have is a transparent window, which will give the area ... me sort this problem. 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 - Delete call log in android for particular number

I am trying to delete all call logs of particular number. try { String strNumberOne[] = {number}; Cursor cursor ... me to overcome this issue? 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 - Wildfly/WebSocket/Apache : WebSocket is already in CLOSING or CLOSED state

I was able to successfully run the websocket in my local machine with the following apache configuration, ... regarding the subject matter. 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 - Libgdx Box2D pixel to meter conversion?

When trying to program a game using Box2D, I ran into a problem with Box2D. I filled in pixel numbers for the ... mean less. 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 - adding components dynamically in a JPanel

how can i add components dynamically in a jpanel? I am having add button when i click the button the components ... manager is set to 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 - Apache HttpClient 4 And JavaScript

I Use Apache HttpClient to Access a webpage . i want to click on a link but the link is javaScript , how can i ... {duration: 1.2}) }); } 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 - Externalize query in spring boot application

I am using spring-boot 1.5.6 RELEASE. I want to do a basic thing, move my queries from the @Query ... -INF folder. 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 - Unexpected UnsupportedOperationException on Hibernate validation failure

Why am I getting an UnsupportedOperationException from Hibernate upon validation failure? I'm hoping for a ConstraintViolationException. ... .java:165) at com.ibm.io.async.Abst...

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

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104 views

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java - Highlighting few of the words of a text file opened in a frame

I am opening a file in a frame and I wish to highlight few of the words.As I understand,I need to traverse the ... wrong"); } add(editorpane); } 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 Hibernate 4.2 using jandex and classmate if its Maven POM defines them as test scope?

I'm developing a simple example with Hibernate, using it outside any container. I'm using Maven, and thus ... for any pointers. - Vítor See Question&Answers more detail:os...

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

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