Recent questions tagged java

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java - How to capture a list of specific type with mockito

Is there a way to capture a list of specific type using mockitos ArgumentCaptore. This doesn't work: ... .forClass(ArrayList.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 - How to install Intellij IDEA on Ubuntu?

I'm new to Ubuntu and Linux in general. I want to code in Java on my computer, but I'm having problems ... it's called and install it properly? 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 - Use IntelliJ to generate class diagram

How do I get IntelliJ 10.5 (on the Mac) to generate a class diagram showing all of the classes in my project? I ... again, only one at a 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 - Difference between setUp() and setUpBeforeClass()

When unit testing with JUnit, there are two similar methods, setUp() and setUpBeforeClass(). What is the difference ... () throws Exception { } 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 - SparseArray vs HashMap

I can think of several reasons why HashMaps with integer keys are much better than SparseArrays: The Android ... reasons for using SparseArrays? 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 - HTTP Basic Authentication instead of TLS client certification

The answer below is from this question; The awarded answer doesn't actually address the question at all. It ... telling here is not correct 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 4 vs Jersey for REST web services

We are planning to make a new application with spring 4.0.6 version. We use controller that can return "XML ... helpful. 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 - What are the differences between Servlet 2.5 and 3?

I'm rolling J2EE code that adheres to Servlet 2.5 and I'm wondering what are the major differences between 2.5 ... being, just say so. 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 - What are optimal scrypt work factors?

I'm using a Java scrypt library for password storage. It calls for an N, r and p value when I encrypt things ... this is strong or weak or what. 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 use JUnit for testing?

Maybe my question is a newbie one, but I can not really understand the circumstances under which I would use junit? ... So what is the purpose? 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 - String.valueOf() vs. Object.toString()

In Java, is there any difference between String.valueOf(Object) and Object.toString()? Is there a specific code convention for these? 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 Jetty and Netty?

What is the main difference between Jetty and Netty? Netty is part of Jboss, but is it the default web server ... Netty support Servlets 3.0? See Question&Answers more detail:os...

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

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557 views

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java - Eclipse: How do you change the highlight color of the currently selected method/expression?

In eclipse, when your cursor is placed on a method (or other things), other places the method exists are ... where to find this option? 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 - Difference between JAX-WS, Axis2 and CXF

What is the difference between: JAX-WS Axis2 CXF All three can be used to create webservices in Java. As of I know ... is the use of Axis2, CXF? 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 - When to use Mockito.verify()?

I write jUnit test cases for 3 purposes: To ensure that my code satisfies all of the required functionality, under ... of the class under test? See Question&Answers more detail:os...

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

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101 views

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java - Hibernate or JDBC

I have a thick client, java swing application with a schema of 25 tables and ~15 JInternalFrames (data entry ... approach if warranted). 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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java - Understanding FFT output

I need some help understanding the output of the DFT/FFT computation. I'm an experienced software engineer and ... an amplitude be negative? 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 - Clearing coverage highlighting in Eclipse

After running coverage reports in Eclipse (using cobertura or an EMMA plugin), my source code files get highlighted ... after I'm 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 - How do I assert my exception message with JUnit Test annotation?

I have written a few JUnit tests with @Test annotation. If my test method throws a ... shouldThrowRuntimeExceptionWhenEmployeeIDisNull() {} 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 doesn't JUnit provide assertNotEquals methods?

Does anybody know why JUnit 4 provides assertEquals(foo,bar) but not assertNotEqual(foo,bar) methods? It provides ... asking out of curiosity. 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 - Best practices for using Markers in SLF4J/Logback

We are using SLF4J+Logback combination at our project for a while now and are quite happy with it, ... logging around using markers consistently 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 best way to learn Smali (and how/when to use Dalvik VM opcodes)?

I know Java, and learned C but never used it. I do not know any form of assembly, either for a virtual ... way to learn how to hack Smali? 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 - Maven package/install without test (skip tests)

I am trying to package my project. But, it automatically runs the tests previous do performing the packaging. The ... the package with out test? 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 - Linking to an external URL in Javadoc?

Something like: /** * See {@linktourl http://google.com} */ 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 is the difference between Hibernate and Spring Data JPA

What are the main differences between Hibernate and Spring Data JPA? When should we not use Hibernate or Spring ... / Spring Data JPA? See Question&Answers more detail:os...

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

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236 views

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java - Difference between CompletableFuture, Future and RxJava's Observable

I would like to know the difference between CompletableFuture,Future and Observable RxJava. What I know is ... from the documentation. 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 print an array in reverse?

This is my array code and I need to print it in reverse. public class Array1D { public static void main(String[] args ... .out.println(" "); } } 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 - call subclass methods by superclass reference

I have code like this: String stringRef = new String("Java"); // (1) System.out.println("(2): " + stringRef. ... equals() be called in line (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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