Recent questions tagged Java

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java - could not find deserializer for type : Error

I have to make a SOAP call from my java program ,for which I used apache axis. My program is as follows ... debugging this java code, 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 - JSON parsing throws error

There are a lot of example in Stackoverflow to show howto parse JSON. But no example worked for me and I guess ... 2 What could be the reason ? 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 - HttpServletResponse seems to periodically send prematurely

I'm working on a setup that takes an http request (GET for testing purposes) to java servlet. How it works ... unless I'm missing a connection. 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 - Failed to deploy to Google App Engine because --use_java7 flag has not been set

------------ Deploying frontend ------------ Preparing to deploy: Created staging directory at: 'C:UsersADMINI ... and my google plugin is 4.2. 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 - System.in.read() behaviour i can't explain

class E92StringDemo { public static void main(String args[]) throws java.io.IOException { String strObj1 = "First ... run the file using javac. See Question&Answers more detail:os...

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

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390 views

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java - Why can I add characters to strings but not characters to characters?

So I wanted to add a character to a string, and in some cases wanted to double that characters then add it to ... to the presence of a string? 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 - Making a Scatter Plot Using 2d array and JfreeChart

This is my First Month with Java, so I apologize for my stupid question in advance. I'm trying to make a simple ... any way that i can 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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java - @Inject not working in Jersey REST webservices in Struts 2

I have created an application for testing the Struts 2 dependency injection (@Inject). The injection is working fine ... return "testing"; } } 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 data jpa repository inject fails using @Autowired in spring boot

spring boot entry class package com.test; @SpringBootApplication(exclude={ DataSourceAutoConfiguration.class, ... /SynchronizationType; 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 - Jodatime: how to print 4-digit year?

I'm using Jodatime for format a date, and with it I'm using a locale to format it locale-specific. I ... get a formatter with this behaviour? See Question&Answers more detail:os...

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

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328 views

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java - Why do we need Robot class when we have Actions class in selenium

I was going through the selenium learning and when I was exploring interaction with keyboard and mouse topic, I ... and Actions class? TIA. See Question&Answers more detail:os...

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

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441 views

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java - Serialization of ArrayList containing multiple objects, doesn't save object state

I can't seem to figure out why serialization saves and restores the list of objects, but not the their state. The list ... ) { mName = name; } 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 - JavaFX + maven + TestFX + monocle don't work together

I have a small project for demonsration JavaFX + TestFX under maven. I use: Java(TM) SE Runtime Environment ... > </configuration> </plugin> See Question&Answers more detail:...

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

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725 views

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java - How to set focus on specific JTextfield inside JOptionPane when created?

I want to set the focus on a specific JTextField which is passed to the JOptionPane as Object Message. Here is my ... TextArea().display(); } } 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 there a way to test 2 way ssl through browser?

If so, How do you set certificate for authentication, what files do you need? is it .pfx? ... returns certification authentication failed. See Question&Answers more detail:os...

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

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645 views

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java - "Object" is not part of the schema for this Realm

When I call the realm.where(MessageEventModel::class.java).findAll() it throws excepiton: this is error java. ... , invalidate caches / restart 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 - NoSuchMethodError: scala.Predef$.$conforms()Lscala/Predef$$less$colon$less

I have seen many answers related to this error, but all re-directing to scala versions etc. But I think my ... Type --help for more information. See Question&Answers more detail:os...

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

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394 views

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java - How to count the number of occurrences of each word?

If I have an article in English, or a novel in English, and I want to count how many times each words appears ... then add one on its count? 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 - NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' is defined

I have simple Spring 4 WebMVC app (Java-config), and I want to add JPA. But when I try to run app (as ... :mem:testdb jdbc.user=sa jdbc.pass= See Question&Answers more detail:os...

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

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556 views

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java - Epoch is not epoch if do a new Date(0L). Why?

My problem is pretty straigtforward explained : if I do this : public class Main { public static void main(String[] args ... ( sdf.format(d)); } See Question&Answers more detail:os...

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

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547 views

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java - Stream decoding of Base64 data

I have some large base64 encoded data (stored in snappy files in the hadoop filesystem). This data was ... io.IOException: Corrupt GZIP trailer See Question&Answers more detail:os...

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

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943 views

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java - Timed out receiving message from renderer

I am trying to get status of transactions from some web portal and I am using below chrome settings in ... .implicitlyWait(20,TimeUnit.SECONDS); 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 - Unable to Marshal value on Serializable Data

I get the following error when trying to pass a HashMap to my MainActivity class (TabooCards implements ... NativeStart.main(Native Method) 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 - include directive and <jsp:include> attribute name problem

Why in JSP we write attribute name as file in include directive, but as page standard action? See Question&Answers more detail:os...

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

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633 views

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java - BigDecimal scale not working

I have the following code: BigDecimal result = BigDecimal.ZERO; result.setScale(2, BigDecimal.ROUND_FLOOR); //1 ... result. What's 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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477 views

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java - break and switch appears to execute all case statements

In the latest stable release of Java and Eclipse (Kempler), entering the following code and executing it, assuming ... wrong in my assumption. See Question&Answers more detail:os...

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

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554 views

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java - How to detect empty ResultSet from MySQL?

How can I detect the empty result set sending from MySQL if there is no possible result. See Question&Answers more detail:os...

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

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512 views

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java - RenderedImage to BufferedImage for multipage-tiff reading

I am using JAI to load in multipage TIFF images File file = workArea[0]; SeekableStream s = new ... probably a very valid reason. See Question&Answers more detail:os...

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

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