Recent questions tagged java

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java - Calculate number of business days between two dates

I have requirement to calculate number of business days between two given dates I have the list of holidays as an Array list ... 60 * 24)); } } 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 LibGDX, how do you have an animation using seperate images ?

I'm learning how to make games using LibGDX and I'm trying to make a small platform game (using Eclipse ... animation using 4 different images ? 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 a JNDI datasource created by another application with Tomcat

I have a .properties file in my application which contains dataSource properties. I set up a JNDI reference to ... .properties file)? 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 - Remote MYSQL Database Access

I have developed an application in java that access remote mysql database. While I am running it by netbeans IDE ... help me. Thanks in Advance 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 - Strange PNG errors: Bad length for IHDR chunk

Heres the error: Exception in thread "main" javax.imageio.IIOException: I/O error reading PNG header! at com. ... specifics on this with 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 - Drawing warning symbol during form validation in Swing

I have developed a swing form which validates entries as the focus is lost from JTextComponent and if the entry ... snippet will really 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 - How I can configure StatementInspector in Hibernate?

https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/Interceptor.html says that onPrepareStatement( ... hibernate session level). 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 - Mock objects calling final classes static methods with Mockito

I just started mocking different layers of our application. I came to a point where one of my mock objects ... ) .thenReturn("someString"); 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 make multiple Key Bindings work at the same time?

I need to design a game with two players. Each has a ball and should be able to move the ball to right or left, ... .moveRight(); } }); } } 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 possible way to run two .xml files in testng.xml parallel?

I currently have two different TestSuites (SUITE1.XML and SUITE2.xml) with different configurations (e.g browsers, Os). ... macOS & TESTNG 6.8.6 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 - Execute external program using ProcessBuilder and provide input

I'm trying to execute an external program with Java using ProcessBuilder, but it expects input from the user. To be more ... (); } Thanks a lot. 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 FileReader causes a compiler error "unhandled exception type FileNotFoundException"

Ive read a few threads here that relate the same problem, but the solutions arent working. :/ I use ... mypackage Wits end, pulling hairs. 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 - Sorting of ArrayList

I have one array list ArrayList itemListWithRank = ItemListDAO.getItemList(); and in arraylist itemListWithRank there are ... Thanks all.... 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 - Impact of setting -XX:+DisableExplicitGC when NIO direct buffers are used

We are building a web application with aggressive performance SLAs which are periodically being violated due to the ... have an adverse affect. 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 - Make FTP server return files listed by timestamp with Apache FTPClient

I have written this below code to connect to a remote FTP Server (vsftp in CentOS 6). (For brevity Exception ... It is accurate only to minutes. 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 - What's the difference between these ways of initializing a HashMap?

I used a HashMap for my program and it works fine, but I don't understand the difference between these ... alphabet1 = new HashMap(); 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 - Run *.exe file from inside JAR

I have a huge JAR file, which I created with Maven Shade plugin. I run this with java -jar foo.jar , ... there is solution for my requirements? 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 - Serialization and Deserialization with Jackson: how to programmatically ignore fields?

I'm using Jackson to serialize and deserialize objects. The problem is that sometimes I want to show a field ... (thanks to the JsonIgnore) 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 - Regex with prefix and optional suffix

This is maybe the 100+1 question regarding regex optional suffixes on SO, but I didn't find any, that could help ... /i/n/g Thanks in advance! 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 - Printing PDF from JasperReports

I'm new to JasperReports and find myself getting pretty lost with it. I've got a webapp in JSF that I want to ... (it's an internal app)). 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 check if a value exists in firebase database - android

I am new to firebase via Android(Java) and was wondering how to check if a user already exists in a ... " within object michael. 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 - singleton public static final

I've been wondering about singletons in Java. By convention, a singleton is set up something like this: private ... mainstream 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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java - Mocking DataSource for JdbcTemplate with Mockito

I'm trying to test a class in a Spring project. I would like to make as many changes as possible in the ... to the JdbcTemplate's .query call? 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 - Recursively find all text files in directory

I am trying to get the names of all of the text files in a directory. If the directory has subdirectories then I also ... i], depth+1); } } } 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 - jdbc: oracle database change notification & duplicate events

I need some Listener for any change(update, insert, delete) of Oracle database table. Problem: I get ... Changed row id : AAAFSzAAAAAAAG8AAA 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 boot - how to configure multiple login pages?

With my team we have written Spring application + SAPUI5 portal using Spring Boot. Web application is divided into ... but it is inconclusive. 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 Jackson to deserialize into a Map

I have a JSON object with two attributes: "key" which is a string, and "value" which can be ... Currently using Jackson-databind 2.1 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 - Sorting an array of int in lexicographic order

I came across a problem such that: WAP to sort prime numbers smaller than given N by digits. If N is 40, the ... /Stuck at this part. } } } See Question&Answers more detail:os...

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

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