Recent questions tagged JAVA

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java - Set hilighting color in jTextField

I am developing a Java Swing application. This app allows user use basic command line. For example user can ... any one implement a jTextField. 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 - Custom CellEditor with JScrollPane - start editing issue

I have a JTable with a custom CellEditor using a JTextArea inside a JScrollPane. It works perfectly when I enter edit ... (); } }//end class 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 - Wrong column being sorted when JTable Header clicked

I have the following code for a RowSorterListener. The purpose of this is to sort a column without affecting any ... one and two put together 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 convert String to Json

I have a servlet in Java and I would like to know how I can do the following. I have a String variable with ... , "Hello, World!").toString(); 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 - adding elements defined in FXML to list with loop

I have a lot of Objects with names a1, a2, a3, ... I need to put them into List, so that it was simplier ... props* /> Thanks a lot in advice! 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 - JPA @JoinColumn issues while joining on non primary key columns

I want to connect table based on one direction join, here is my code: Class Person { @id String person_sk; int ... then also it doesn't work. 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 - setLocation of Label

I have all of the labels working correctly but the userLabel[3] is not positioning properly No matter what I ... //i41.tinypic.com/23jfo9l.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 - Calculating Time and Date difference

I am currently writing a report to calculate the TotalTimeDifference between two date variables in iReport. The two ... the show days to: 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 can i do a multiselect in jsp/jstl with selected value?

Hello I have an User with some Roles User.class public class User { private Long id; private String firstName; ... ;Comment: Sdsds; res=false 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 - PocketSphinx android demo runtime exception

I downloaded the source code of pocket sphinx demo. I'm trying to run it but it is throwing a runtime ... SpeechRecognizer(7912): Load JSGF /mnt/sdcard/Android/data/edu.cm...

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

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java - and in a String variable does not display in JOptionPane.showMessageDialog

I am trying to accumulate a String in a variable but the tab and newline does not take effect. Here is ... of having tabs between the numbers 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 - Internationalization in a website

I m using ResourceBundle method getBundle(Propertyfilename,Local.languagename) class which returns an object of ... arabic,band english. 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 can i fix this equals on primitive type(int)

heres my code for a library application package com.accenture.totalbeginner; public class Person { private String name; ... classes let me know. 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 - Error setting expression 'spa.amount' with value '[Ljava.lang.String;@10dd65e' )

I am trying following code to get data in spa object fields. Thus, I am using the following code but it is ... JSP. How to resolve above errors? 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 - org.postgresql.util.PSQLException: The column index is out of range: 3, number of columns: 2

I decided to modify my application by adding there authentication using spring security and database. Before I was ... syntax in XML file? See Question&Answers more detail:os...

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

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202 views

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java - Calculating running totals in JTable using JComboBox

I'm trying to calculate running totals using JTable and Combo combination, sometime it calculate right but ... (CellEditorListener l) { editor.addCellEditorListener(l); }...

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

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java - javax.usb.UsbException: Properties file javax.usb.properties not found

I used the following code to get the manufacturerCode of the usb device attached to the system. I added the jsr80-1.0.1 ... + "." + lower; } } 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 - Tasklet to delete a table in spring batch

I have steps in the batch job that does different things. But before I begin all these steps, I need to clear a ... ? I am using ibatis as ORM See Question&Answers more detail:os...

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

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271 views

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java - How to add fade/fade out effects to a JLabel

Hello I am trying to create a Java game and need to add some effects to my label. I have the following questions ... How can I get that done ? 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 - Does MySQL Connector/J buffer rows when "streaming" a ResultSet?

Based on my reading, I see that the way to stream a ResultSet in MySQL using the MySQL JDBC driver is these ... set to 1000. What happens then? 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 - Event detection on opaque pixels in JButton

I have a class extending JButton that I am trying to apply a .png image to. The image is irregular in shape, and is ... null); g.dispose(); } } See Question&Answers more detail:os...

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

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148 views

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java - Basics of Spring Security

What are the very basics of Spring Security i.e. how Spring sets up security internally. What are all the beans ... to work out-of-the-box? 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 - Why do more requests go to new (dynamic) instances than to resident instance?

Have a Java app with auto-scaling on App Engine Standard Environment. Right now the scaling is configured like this: < ... s part 2 of the log. See Question&Answers more detail:os...

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

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169 views

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java - Updating GUI from a runnable

I'm building a Swing application and one part of the functionality should be to process and output some text visually ... the code I have 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 - Parsing deeply nested JSON properties with Jackson

I am trying to find a clean way of parsing nested properties from a payload from an API. Here is a rough ... .exchange() to call the endpoint. See Question&Answers more detail:os...

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

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238 views

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java - How to download a pdf file programmatically from a webpage with .html extension?

I have reviewed ALL similar questions (not only this!) on this forum and have tried ALL of those methods however ... it has a pdf extension? See Question&Answers more detail:os...

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

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156 views

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java - How to connect to Azure SQL with JDBC

I try to connect to Azure SQL with MS JDBC driver: import java.sql.*; public class ExampleSQLJDBC ... ClientConnectionId: 1a3032c8-493d-4f99-8641-d0f02211d82c Server returned maj...

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

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387 views

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java - Access fields from another Controller in JavaFX

I'm writing small application using JavaFX but I stuck with one problem. I have fxml files: MainPane.fxml Stream. ... better way to do 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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