Recent questions tagged java

0 votes

226 views

1 answer

java - How can I get relative path of the folders in my android project?

How can I get the relative path of the folders in my project using code? I've created a new folder in my ... to "get file path from asset". See Question&Answers more detail:os...

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

0 votes

173 views

1 answer

java - maven-assembly-plugin: How to use appendAssemblyId

I have a multi-module Maven project and in one module I want to create two artifacts during the build: The main ... warning ask me to use it? See Question&Answers more detail:os...

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

0 votes

140 views

1 answer

java - What are the benefits of using identical String literals instead of a final variable?

I've come across a class that includes multiple uses of a string literal, "foo". What I'd like to know, is ... foo"); // second occurence } } See Question&Answers more detail:os...

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

0 votes

290 views

1 answer

java - Using `@ConfigurationProperties` annotation on `@Bean` Method

Could someone give a MWE of how to use the @ConfigurationProperties annotation directly on a @Bean method? I have ... unable to figure it out. See Question&Answers more detail:os...

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

0 votes

241 views

1 answer

java - Is it possible to reload log4j.xml / log4j.properties file dynamically in Tomcat?

The problem is, whenever you change the log4j.properties/log4j.xml, you need to restart the tomcat [ or ... reloading the log4j configuration? See Question&Answers more detail:os...

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

0 votes

576 views

1 answer

java - OSX Yosemite - JVM Shared library does not contain the JNI_CreateJavaVM symbol

Downloaded OS X Yosemite Beta 3 and I'm trying to run some eclipse based IDE's, namely Titanium Studio and ... , any help would be appreciated. See Question&Answers more detail:os...

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

0 votes

559 views

1 answer

java - How to set a maximum height with wrap content in android?

In android, how can you create a scroll view that's got a max height, and wrap contents, basically it wraps ... > But this isn't working? See Question&Answers more detail:os...

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

0 votes

324 views

1 answer

java - Jackson deserialize extra fields as Map

I'm looking to deserialize any unknown fields in a JSON object as entries in a Map which is a member of a ... but well known consistent type)? See Question&Answers more detail:os...

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

0 votes

310 views

1 answer

java - In JDBC, why do parameter indexes for prepared statements begin at 1 instead of 0?

Everywhere else in Java, anything with an index starts at 0. Is there a reason for the change here or is this just bad design? See Question&Answers more detail:os...

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

0 votes

101 views

1 answer

java - Why is using Collection<String>.class illegal?

I am puzzled by generics. You can declare a field like: Class<Collection<String>> clazz = ... It seems ... generic types. Anybody an idea? See Question&Answers more detail:os...

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

0 votes

155 views

1 answer

java - How do I unit test a Servlet Filter with jUnit?

Implemented doFilter(). How to properly cover Filter with jUnit ? public void doFilter(ServletRequest servletRequest, ... , servletResponse); } See Question&Answers more detail:os...

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

0 votes

147 views

1 answer

java - Static Inner Class in Kotlin

What alternative to an Inner static Class can I use in Kotlin Language, if it exists? If not, how can I ... Thank you very much in advance. See Question&Answers more detail:os...

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

0 votes

265 views

1 answer

java - How to add elements in List when used Arrays.asList()

We cannot perform <Collection>.add or <Collection>.addAll operation on collections we have obtained from Arrays.asList ... can I achieve this? See Question&Answers more detail:os...

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

0 votes

180 views

1 answer

java - Using Math.round to round to one decimal place?

I have these two variables double num = 540.512 double sum = 1978.8 Then I did this expression double total = Math ... a 0 in the tenth's place. See Question&Answers more detail:os...

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

0 votes

271 views

1 answer

java - What's the best way to defend against a path traversal attack?

I have a Java server implementation (TFTP if it matters to you) and I'd like to ensure that it's ... work consistently across Windows and Linux. See Question&Answers more detail:os...

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

0 votes

187 views

1 answer

java - Ant error when trying to build file, can't find tools.jar?

When I run ant it says: Unable to locate tools.jar. Expected to find it in C:Program FilesJavajre6libools.jar Buildfile: ... it was not on it... See Question&Answers more detail:os...

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

0 votes

104 views

1 answer

java - What exactly is sun.jnu.encoding?

What is the purpose of the system property sun.jnu.encoding? Various fragments on the web set or report it, but I can't find a definition. See Question&Answers more detail:os...

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

0 votes

1.0k views

1 answer

java - Serialize a Double to 2 decimal places using Jackson

I'm using Jackson, with Spring MVC, to write out some simple objects as JSON. One of the objects, has an ... more standard) way of doing this. See Question&Answers more detail:os...

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

0 votes

187 views

1 answer

java - How can I get a the host name (with port) that a servlet is at

I thought ServletContext might provide a method. Does the getAttribute() method of ServletContext provide any help ... an internal reference. See Question&Answers more detail:os...

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

0 votes

102 views

1 answer

java - JavaMail API from Maven

I am trying to upgrade to latest Java Mail utility. From <dependency> <groupId>javax.mail</groupId> <artifactId> ... .sun.mail vs javax.mail? See Question&Answers more detail:os...

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

0 votes

124 views

1 answer

java - Store run configuration with project in Eclipse

I'm programming in NetBeans however i like to get used to Eclipse as well. I have a Maven project what i've ... Eclipse what i'm looking for? See Question&Answers more detail:os...

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

0 votes

93 views

1 answer

java - Coding pattern for random percentage branching?

So let's say we have a code block that we want to execute 70% of times and another one 30% of times. if( ... before I go all spaghetti on this. See Question&Answers more detail:os...

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

0 votes

468 views

1 answer

java - Usage of Jackson @JsonProperty annotation for kotlin data classes

kotlin 1.2.10 jackson-module-kotlin:2.9.0 I have the following data class in kotlin: data class ... .IS_GETTER, JsonAutoDetect.Visibility.NONE) See Question&Answers more detail:os...

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

0 votes

88 views

1 answer

java 8 - Converting Array to List

In order to convert an Integer array to a list of integer I have tried the following approaches: Initialize ... better in terms of performance? See Question&Answers more detail:os...

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

0 votes

346 views

1 answer

java - Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]

I am trying to configure hibernate orm mapping tool to my java class and using PostgreSQL as my database ... image of java hibernate structure See Question&Answers more detail:os...

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

0 votes

401 views

1 answer

java - Remove "X" button in Swing JDialog

Is there a way to remove the close button ("X") from the JDialog title bar? See Question&Answers more detail:os...

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

0 votes

264 views

1 answer

java - How to clean old dependencies from maven repositories?

I have too many files in .m2 folder where maven stores downloaded dependencies. Is there a way to clean all ... all dependencies in .m2 folder? See Question&Answers more detail:os...

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

0 votes

110 views

1 answer

java - Disable warning in IntelliJ for one line

I have a Java code line where IntelliJ displays a warning. How do I silence the warning in that particular ... a specific Java source line. See Question&Answers more detail:os...

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

Categories

Just Browsing Browsing

Most popular tags