Recent questions tagged Java

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java - How do I get generate an IP address range given start and end IP address?

How can generate a range of IP addresses from a start and end IP address? Example for a network "192.168.0.0/ ... is just an example. 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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java - Private interface methods are supported

Private interface methods are supported by Java 9. This support allows non-abstract methods of an interface to share ... in terms of code? 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-batch flow / split after a step

I am building a spring-batch solution that contains the following process: step 1 : split a list into multiple ... run a last single step? 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 - Raw types with generic methods independent of the generic type

This a follow-up to chrert's question Generic classes with Collection getter of other types. If you can come ... this generic java code compile? 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 configure JComboBox not to select FIRST element when created?

Problem: Update: From the Java SE 6 API: public JComboBox() Creates a JComboBox with a default data model. The default ... (); } }); } } See Question&Answers more detail:...

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

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java - Failed to determine a suitable driver class

when starting application, seeing below error: Exception encountered during context initialization - cancelling refresh ... driver 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 - Accessing views from other thread (Android)

I'm developing an android application, and I have a button which starts/pauses certain simulation process. While this ... I solve this problem? 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 2.1/Hibernate 4.3 deprecation warning

I'm using JPA 2.1 sample application with Hibernate 4.3.x implementation. <?xml version="1.0" encoding="UTF-8"? ... (); factory.close(); } } 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 - hebrew appears as question marks in netbeans

I am using netbeans 6.1 on 2 computers. on one of them the program: public static void main(String argv ... question marks remains. Thanks, Ido 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 - Matching a whole word with leading or trailing special symbols like dollar in a string

I can replace dollar signs by using Matcher.quoteReplacement. I can replace words by adding boundary characters: ... $temp4 and only $temp4? 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 - Max length of a string variable in Android

There seems to be a max length to how many chars a string can hold. In my case it's being populated with HTML ... or is that it? Cheers, Mike. 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 do you create an EntityManager when you are unsure of the unit name?

I'm in a situation where I need to determine the EntityManager's unit name at run time. For example, I'd like ... unit name is until run time? 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 - FTPClient.listFiles not working

I am trying to list all the files under a specific directory in a ftp server. FTPFile[] subFiles = ... having the problem. please help. 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 - Hibernate mapping: OneToMany and OneToOne on child object property

Here is parent class Enterprise. It has employers and one of them is president of enterprise. @Entity class ... () // implementation } 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 - Comparing two LatLng objects in google map v2 android

I have an arraylist which consists of latLong object as shown below: ArrayList < LatLng > latLngList = new ... of comparing the latLng object? 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 - Parallel stream doesn't set Thread.contextClassLoader after tomcat upgrade

After tomcat upgrade from 8.5.6 to 8.5.28 parallel stream stopped supplying Threads with contextClassLoader: ... ForkJoinPool in newest Tomcat. 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 Python really create all bound method for every new instance?

I am reading about classes in Python (3.4) and from what I understand it seems that every new object has its ... " among objects like in Java? 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 - AmazonClientException: Data read has a different length than the expected

1.When I am using AmazonS3Client to upload file on amazon s3 file store. 2.when I am trying to upload multiple ... Thread.run(Thread.java:745)** 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 do listen EditText?

I have a EditText. I wamt tp do something, when the user presses the Enter key while changing EditText. How can I do ... ; } return 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 - How to generate object @Entities from database?

I want to generate JPA's @Entitys from database (but I want it to be object oriented). for Example @Entity @Table( ... I did not work for me. 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 - Using AppBarLayout.Behavior.DragCallback to control scroll of collapsing toolbar layout

I want to be able to enable and disable the scroll of collapsing toolbar. Can anyone show me ... widget/AppBarLayout.Behavior.DragCallback.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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498 views

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java - How to save something to the desktop without hard-coding the directory?

I was wondering how to get java to save a text file named hello.txt to the desktop without writing "C:\Users\Austin\ ... ? im a noob.... :( 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 - Netbeans deployment fails after class rename

I am writing a test client for a webservice. It's a Netbeans 6.9.1 WebApplication using JSF framework. I have one ... I get rid of this ghost? 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 - Change contentpane of Frame after button clicked

I want to be able to set a JFrame's contentpane after a button inside one of that frame's JPanels has been ... I'm doing wrong? 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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java - Unable to process parts as no multi-part configuration has been provided

I wrote a simple controller for uploading files: @RestEndpoint public class ImageController { @Autowired GridFsTemplate ... course). 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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368 views

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java - Recursive solution to Sudoku generator

I'm trying to code an algorithm that creates a legal Sudoku board in either Java or Javascript. Neither work, and I'm ... [j]); } } var board; See Question&Answers more detail:os...

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

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279 views

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java - Spring Cloud Contract - is it Consumer Driven?

I'm just starting with Consumer-Driven Contracts for our microservice setup, and as they are mainly Spring Boot ... and verify it on producers? 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 - javax.servlet.ServletException: Not running on Jetty, JSR-356 support unavailable

I am facing a problem while deploying a war on to tomcat instance, Tomcat version details, D:KiranKiranSoftwares ... the application using STS See Question&Answers more detail:os...

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

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