Undo svn add operation
If you want to cancel an svn add operation, do not use svn delete or svn remove, according to this post. You can issue the following command to undo a svn ad...
Posts by Category
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- combinations 1
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- jdk11 1
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Uncategorized
Checkout only one file from Subversion
I was wondering how to checkout only one folder/file from SVN when I found this interesting tip. The command I issued to do it is the following:
When to use TestNG or JUnit
There is an interesting discussion between using TestNG or JUnit on Java projects at Javalobby. It’s very worth reading.
Some interesting Maven tips
Here are some Maven tips, extracted from Javalobby:
Maven Eclipse plugin using project dependencies
Some months ago I was noting the behavior of the Maven Eclipse plugin during the eclipse:eclipse goal.
Configuration classes with Enums
As I mentioned on my previous post, an alternative implementation to create Singleton in Java is with Enum types.
Singleton in Java with Enum types
Java 1.5 introduced the concept of Enum types. They are type-safe constants, which implements equals(), hashCode() and cannot be extended. Each constant can ...
Java-Quiz: The Iterator Quiz
Danilo sent us an interesting Java-Quiz from the Java Specialists’ Newsletter created by Olivier Croisier. You have to insert your corrective code in place o...
Eclipse Log4J template
My friend Bruno sent me an interesting tip on how to create a Log4J template at Eclipse. Just follow these steps:
Using Hamcrest and JUnit
Lately I started using the core Hamcrest matchers bundled with the JUnit framework to create more readable unit tests.
The power of pair programming
Some weeks ago I started doing pair programming with some co-workers basically for two things:
My paper MIMECORA-DS added as LNCS at SpringerLink
I’m proud to announce that my paper A Collaborative Support Approach on UML Sequence Diagrams for Aspect-Oriented Software was added as lecture notes in comp...
My first experiences on a Scrum team
I moved to a new job recently, which applies agile methodologies to manage software teams, particularly Scrum, which was adopted to make an effective managem...
Fixing Eclipse buttons for Ubuntu 9.10
I’ve just updated to the new Ubuntu Karmic 9.10 and I’ve found some weird problems running Eclipse. Some buttons didn’t work when they were clicked, but the ...
Product Owner vs Product Manager
I received from @akitaonrails an interesting article concerning the differences and responsibilities of the product owner and product manager roles.
Effect propagation to code
Reading Michael Feathers’ ‘Working Effectively With LegacyCode’, I found quite interesting his heuristics to trace propagation of effects to code:
JDK7 Tackles Java Verbosity
Interesting article showing some changes on the Java platform to address its verbosity, but keeping code readability safe. I liked the new Collection’s liter...
A Brief History of Java and JDBC
From Javalobby, an interesting and short video showing the evolution of the Java platform since 1991.
Constructors in Scala
I just came across an interesting post by Stephan Schmidt about constructors in Scala.
Using Scala to update LiveJournal tags – Part I
Some days ago I started to use the Scala programming language to update my Livejournal tags using its XML-RPC protocol reference. First I had to check if som...
“Salute #{@Ruby}!”
Some times ago I had to parse a XML messages’ file to produce some i18n properties files.
Twitter on Scala Interview
There is a nice interview with the Twitter development team on Artima about using Scala in production on Twitter code. The team talks about some issues and f...
Twitter Ecosystem Tools
I’m very impressed of how many applications are being built on top of Twitter. This simple communication tool bas became so popular that people use it to exp...
Bean Validation – Emmanuel Bernard on JSR 303
JavaLobby released an interesting interview with Emmanuel Bernard, the spec lead of of JSR-303: Bean Validation..
Installing Vista..and restoring Grub from a live Kubuntu cd..
Somedays ago I installed Vista for the first time at my home desktop (I was very worried about the performance of this OS, so I took a long time to give it a...
Joshua Block on How to Design a Good API & Why it Matters
In this talk (recorded at Javapolis), Joshua Block presents guidelines about how to design good APIs. I highlighted what i think are the most important parts...
Erich Gamma Discusses Jazz, Eclipse, JUnit and Design Patterns
Good interview from Erich Gamma at QCon London 2008, where he discusses, among other things, the JUnit framework, the Gang of Four book about Design Patterns...
My first impressions about LaTex
There’s been a good time I have wanted to try the http://en.wikipedia.org/wiki/LaTeX. So many times some masters / doctorate friends told about it for me ver...
The Fan programming language
Cedric has showed us an interesting programming language called Fan, which has a lot of useful features. The ones I liked most are:
About CSS2 Selectors
Some days ago I was trying to customize my blog’s look and feel to remove my pic from each one of my entries. At my blog’s theme, every <img> tag (whic...
DomainDrivenDesign: Domain Services or Method on an Entity?
There has been too much discussion on the DDD list regarding where to put the business logic control, whether in a service or entity. Being more specifically...
Generating LGPL notices with Python support
When we started developing JFileContentManager, we didn’t even think to release it as an open-source project. So, when we finished the project, I particularl...
Annoucing JFileContentManager 1.2!
A new version of JFileContentManager has been released! Below are the changes release:
Effective Java Programming with Joshua Bloch
Nice video from Joshua Block, Chief Java Architect at Google, talking about his Effective Java™ Programming Language Guide book and also about the consequenc...
Is Java on a evolutionary dead end way?
Artima is running an article where Bruce Eckel talks about about Java’s objective on backwards compatibilities and the problem of combinatorial complexity wh...
JFileContentManager has been released!
JFileContentManager is a Java based file manager desktop application, it can show, edit and manipulate the content of the files archived inside a zip. Showin...
Strongly Java typed safe delegates
This great post explores an interesting Java implementation about using the delegate programming feature, in a type safe way. Delegate is a form of function ...
TestSuite Merlin javadoc
Running through the Java TestSuite API I’ve found this funny javadoc..
Swing tips and tricks
Some days go I was given the task to customize the Java Swing widgets for a project in our company. The default look and feel of a JDialog, specifically, has...
Google announces Android
Google ended up the mystery and announced a mobile free development platform, called Android and not a GPhone, as someone would expect. This platform leverag...
The war between Apple and developers
Cédric has posted an interesting point of view about the war between Apple and the developers. This war started when Java developers knew Leopard doesn’t inc...
How Hard Could It Be? Five Easy Ways to Fail
Pedro da Ros has pointed me an interesting article from Joel Spolsky about ways software projects go wrong. Five Easy Ways to Fail shows us five step-guide t...
Reducing the distance between programming and project management
Some days ago me and bpfurtado were talking about different areas of interest on software development and the distance created by programmers in not involvin...
Changing Firefox profile location on Win
Some days ago I finally had enough time to move all my Documents and Settings folder to a dedicated partition, storing my Home directory and files (I already...
Why not design patterns?
Some months ago, Cedric has reported people criticizing the use of design patterns on software projects, with some arguments like:
See-Through Mobile Devices
Check out this interesting video about LucidTouch see-through mobile device. See-Through Mobile Devices let users see their hands while touching behind the d...
About use case reuse
Here are some good idioms by Scott Ambler on use case reuse. Must read. I’m trying to keep this blog up to date, but it’s being very difficult…
Thinking Iterative, but doing Waterfall development
Some companies think they’re applying iterative and incremental development, but in practice are doing waterfall development. Here are some tips described in...
Do you need closures in Java?
TheServerSide has raised a question about whether closures proposals to be implemented in the Java language are really necessary. In my opinion, I think the ...
Web 2.0 ‘neglecting good design’
Here is an interesting interview with the usability guru Jakob Nielsen which he says web firms are so emphasized in the hype of Web 2.0 as the “latest fashio...
Google Guice, dependence Inversion in the Java way
Check out this great video about the new Java based inversion control framework from Google. The guys Kevin Bourillion and Bob Lee explains the concept behin...
Firefox tips and tricks
Check out these 15 firefox tips and tricks! The ones I like most are Ctrl+Tab (rotate forward among tabs) and Ctrl+1-9 (choose a number to jump to a specific...
Inspect your Java codebase with SemmleCode
This Eclipse plugin seems to be a nice tool to drill down into your company codebase. You can gather with it code conventions, metrics, styles, method name p...
Method Refactoring
bpfurtado has raised an important question concerning some odd practices in software programming. People who code applying the same paradigm to all computer ...
Integrating Struts and Spring
My coworker Max has argued with me there is no relationship between Java web based frameworks, specially Struts and Spring. Well, I completelly disagreed wit...
Interview with Grady Booch
Interesting interview with Grady Booch, an IBM fellow who developed the first drafts of OOP and the Booch Method, which was a precursor to UML. In this inter...
Don’t be passionate with your language of choice …
The majority of software developers have a language of choice. Some may chose their preferred language based on the paradigm it applies, others may evaluate ...
Setting up a local SVN on Linux and Windows
I was intended to create a local SVN repository to host my Eclipse projects in home. So, I decided to share the same SVN repository on Linux (a Kubuntu distr...
Checked or Unchecked?
Nice post from Bruce Eckel about whether Java needs or not checked exceptions. I have to admit, I changed a lot my thougths about using checked exceptions in...
Indicating the absence of an object
Sometimes I’ve seen some Java code intended to indicate the absence of parameters, that is, code validating null parameters (every public method must have a ...
List<?> or List
Java 1.5 introduced some new concepts at the Java language level. One of them is Generics, which you can make use mainly when creating type safe collections....
About Refactoring
From Objects First With Java’s book: “Refactoring is the activity of restructuring an existing design to maintain a good class design when the application is...
Spring 2.0 released
Spring 2.0 has been final released. Here is the news.
SRP Example – Bowling Game
Browsing Uncle Bob’s blog, I’ve found this interesting post about teaching TDD with a practical example. It tries to show the principles of TDD while impleme...
Applying the Law of Demeter
Have you ever been told about the Law of Demeter when developing object-oriented systems? This law states the following:
Open sourcing Java: good or bad?
Sun announced it will start open sourcing Java by the end of this year, according to eweek. Sun plans to open-source firts the Java C (Java Compiler) and the...
Single Responsability Principle
Look at these Java code snippet:
Interfaces and Abstract classes
My friend bruno started a thread about interfaces and abstract classes and I wanna continue here. I totally agree with his points and I’m adding other ones h...
GRASP patterns
Have you ever been told about GRASP patterns? Those kind of patterns are part of the design discipline of the unified process. Their goal is to assign classe...
Good API design rule
From butUncleBob.com:
Thread Groups
Some months ago I was wondering what was the benefit of using thread groups, which is a container of threads in Java. Reading Bruce Eckel’s Thinking in Java,...
About version control
What do java programmers version control? is a good question to ask ourselves in the corporate world of software development. I think we should version cont...
Software testing purposes
James Bach has a interesting opinion about testing software systems. I think it’s a different opinion from any team project manager or developer. He not only...
Guidelines about threads
From Bruce Eckel’s Thinking in Java book, about threads:
Eclipse Callisto is finally released!
Eclipse Callisto is available! You can download it here. Eclipse 3.2 build has been released too. Check out the New and Noteworthy.
Jatalla – New web search engine’s experience
Wikinews has reported a new web search engine called Jatalla, which uses only user generated submissions as results, is coming soon. It’s a different approa...
Google increasing its computing power
My friend Marcel Ferreira sent me this article which says Google is building two brand new data centers, as big as two football fields, on The Dalles, Ore. G...
Spyware killer
I’ve came across Bruce Eckel’s old weblog and found a post about Spybot-Search & Destroy to eliminate spywares, malwares, trojans from Windows. It’s unco...
Aurora 7500 Desktop
Take a look at this cool Aurora 7500 Desktop. The winners of Extend Firefox Contest will receive this machine with a nice and great firefox design 🙂
Ant “Could not find the main class. Program will exit”
Last week I was struggling with Ant because I changed my Eclipse installation path and I couldn’t run my build.xml anymore. The solution for this problem I’v...
Microsoft on net nasties
Funny news from AustralianIT. Even Steve Ballmer couldn’t rid a Windows infected machine from virus, spyware, worms et cetera. Is there any possibility to re...
Explorer Destroyer
If you want people switching from IE to Firefox, take a look at this tool. You can even earn money from Google for each person you switch! Firefox users, joi...
Association or Aggregation?
I’ve been discussing with my co-workers when we have to use Aggregation or Association in UML models. Martin Fowler in UML Distilled, 3rd Edition says aggreg...
Blu-ray – The next-generation optical disc format
Have you ever thought about recording HD (high definition video) with a format which can hold up can hold up to 25GB on a single-layer disc? Yeap, this can b...
Early abort idiom
Take a look at those Java code snippets:
Sun is gonna open source Java?
I’ve came across Vnunet to a interesting news that Jonathan Schwartz, Sun’s new CEO, said that Sun will release the source code of Java. One point of view is...
Introducing myself
Hi! This is my first post on my blog. I’m a software developer and I’m here to share discussions on software development in general. I was graduated in Compu...
programming
About patterns for handling errors in Kafka applications
I have just read an interesting article about patterns for handling errors in Kafka. The article presents four patterns for handling errors in Kafka applicat...
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
About JUnit 5 parameterized tests
Interesting article about JUnit 5 parameterized tests using BDD (Behaviour-Driven Development) style. It shows an example of using @CsvSource as arguments so...
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
3 Things Every Java Developer Should Stop Doing
My friends Andre and Leonnardo have sent me an interesting article about some bad habits every Java developer should stop doing in their code.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
About the Kotlin programming language
Kotlin is a statically typed language which is fully interoperable with Java.
35 programming habits that make your code smell
Interesting article about some bad programming practices, including topics like code organization, teamwork, testing and maintenance.
Converting a Map to a List in Java 8, Groovy and Ruby
Some days ago I was developing a task on a Gradle project and I faced with a situation where I had to convert a Map < String, List < String >> to...
JavaCodeKata – Lambdas
I’ve came across that kata from @brjavaman and @yanaga to teach lambdas, one of the new features of JDK 8.
K Palindromes puzzle
Here we have the K Palindromes puzzle from Javalobby:
Minimum difference puzzle in Ruby
Folks, here we are for another puzzle from Javalobby:
Balancing arrays puzzle in Ruby
Here we are for another puzzle from Javalobby:
Finding the second highest frequency
It’s been a long time since I posted for the last time, but I promise I’ll try to keep this blog up-to-date 🙂
java
About patterns for handling errors in Kafka applications
I have just read an interesting article about patterns for handling errors in Kafka. The article presents four patterns for handling errors in Kafka applicat...
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
About JUnit 5 parameterized tests
Interesting article about JUnit 5 parameterized tests using BDD (Behaviour-Driven Development) style. It shows an example of using @CsvSource as arguments so...
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
3 Things Every Java Developer Should Stop Doing
My friends Andre and Leonnardo have sent me an interesting article about some bad habits every Java developer should stop doing in their code.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
About the Kotlin programming language
Kotlin is a statically typed language which is fully interoperable with Java.
Importing and debugging Eclipse projects in IntelliJ IDEA
Last week I faced a situation to import some Eclipse projects to IntelliJ IDEA, my default Java IDE. IntelliJ IDEA supports this integration, just go to File...
Converting a Map to a List in Java 8, Groovy and Ruby
Some days ago I was developing a task on a Gradle project and I faced with a situation where I had to convert a Map < String, List < String >> to...
JavaCodeKata – Lambdas
I’ve came across that kata from @brjavaman and @yanaga to teach lambdas, one of the new features of JDK 8.
development
About patterns for handling errors in Kafka applications
I have just read an interesting article about patterns for handling errors in Kafka. The article presents four patterns for handling errors in Kafka applicat...
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
3 Things Every Java Developer Should Stop Doing
My friends Andre and Leonnardo have sent me an interesting article about some bad habits every Java developer should stop doing in their code.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
About the Kotlin programming language
Kotlin is a statically typed language which is fully interoperable with Java.
35 programming habits that make your code smell
Interesting article about some bad programming practices, including topics like code organization, teamwork, testing and maintenance.
JavaCodeKata – Lambdas
I’ve came across that kata from @brjavaman and @yanaga to teach lambdas, one of the new features of JDK 8.
code
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
3 Things Every Java Developer Should Stop Doing
My friends Andre and Leonnardo have sent me an interesting article about some bad habits every Java developer should stop doing in their code.
35 programming habits that make your code smell
Interesting article about some bad programming practices, including topics like code organization, teamwork, testing and maintenance.
K Palindromes puzzle
Here we have the K Palindromes puzzle from Javalobby:
Minimum difference puzzle in Ruby
Folks, here we are for another puzzle from Javalobby:
Balancing arrays puzzle in Ruby
Here we are for another puzzle from Javalobby:
Finding the second highest frequency
It’s been a long time since I posted for the last time, but I promise I’ll try to keep this blog up-to-date 🙂
lambdas
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
Converting a Map to a List in Java 8, Groovy and Ruby
Some days ago I was developing a task on a Gradle project and I faced with a situation where I had to convert a Map < String, List < String >> to...
JavaCodeKata – Lambdas
I’ve came across that kata from @brjavaman and @yanaga to teach lambdas, one of the new features of JDK 8.
streams
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
About the Kotlin programming language
Kotlin is a statically typed language which is fully interoperable with Java.
ruby
Converting a Map to a List in Java 8, Groovy and Ruby
Some days ago I was developing a task on a Gradle project and I faced with a situation where I had to convert a Map < String, List < String >> to...
K Palindromes puzzle
Here we have the K Palindromes puzzle from Javalobby:
Minimum difference puzzle in Ruby
Folks, here we are for another puzzle from Javalobby:
Balancing arrays puzzle in Ruby
Here we are for another puzzle from Javalobby:
Finding the second highest frequency
It’s been a long time since I posted for the last time, but I promise I’ll try to keep this blog up-to-date 🙂
jdk8
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
3 Things Every Java Developer Should Stop Doing
My friends Andre and Leonnardo have sent me an interesting article about some bad habits every Java developer should stop doing in their code.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
JavaCodeKata – Lambdas
I’ve came across that kata from @brjavaman and @yanaga to teach lambdas, one of the new features of JDK 8.
java8
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
About the Kotlin programming language
Kotlin is a statically typed language which is fully interoperable with Java.
Converting a Map to a List in Java 8, Groovy and Ruby
Some days ago I was developing a task on a Gradle project and I faced with a situation where I had to convert a Map < String, List < String >> to...
collectors
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
About the Kotlin programming language
Kotlin is a statically typed language which is fully interoperable with Java.
functional
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Streams in JDK 8: The Good, the Bad, and the Ugly
Great session in JavaOne 2017 about Streams and lambdas introduced in JDK8.
3 Things Every Java Developer Should Stop Doing
My friends Andre and Leonnardo have sent me an interesting article about some bad habits every Java developer should stop doing in their code.
languages
K Palindromes puzzle
Here we have the K Palindromes puzzle from Javalobby:
Minimum difference puzzle in Ruby
Folks, here we are for another puzzle from Javalobby:
Balancing arrays puzzle in Ruby
Here we are for another puzzle from Javalobby:
Finding the second highest frequency
It’s been a long time since I posted for the last time, but I promise I’ll try to keep this blog up-to-date 🙂
puzzle
K Palindromes puzzle
Here we have the K Palindromes puzzle from Javalobby:
Minimum difference puzzle in Ruby
Folks, here we are for another puzzle from Javalobby:
Balancing arrays puzzle in Ruby
Here we are for another puzzle from Javalobby:
Finding the second highest frequency
It’s been a long time since I posted for the last time, but I promise I’ll try to keep this blog up-to-date 🙂
arrays
Converting a Map to a List in Java 8, Groovy and Ruby
Some days ago I was developing a task on a Gradle project and I faced with a situation where I had to convert a Map < String, List < String >> to...
Minimum difference puzzle in Ruby
Folks, here we are for another puzzle from Javalobby:
Balancing arrays puzzle in Ruby
Here we are for another puzzle from Javalobby:
testing
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
About JUnit 5 parameterized tests
Interesting article about JUnit 5 parameterized tests using BDD (Behaviour-Driven Development) style. It shows an example of using @CsvSource as arguments so...
35 programming habits that make your code smell
Interesting article about some bad programming practices, including topics like code organization, teamwork, testing and maintenance.
kotlin
About patterns for handling errors in Kafka applications
I have just read an interesting article about patterns for handling errors in Kafka. The article presents four patterns for handling errors in Kafka applicat...
About JUnit 5 parameterized tests
Interesting article about JUnit 5 parameterized tests using BDD (Behaviour-Driven Development) style. It shows an example of using @CsvSource as arguments so...
About the Kotlin programming language
Kotlin is a statically typed language which is fully interoperable with Java.
groovy
Integration tests in a Gradle build
Here is an interesting post about how to add integration tests and configure its dependencies in a Gradle build.
Converting a Map to a List in Java 8, Groovy and Ruby
Some days ago I was developing a task on a Gradle project and I faced with a situation where I had to convert a Map < String, List < String >> to...
gradle
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
Integration tests in a Gradle build
Here is an interesting post about how to add integration tests and configure its dependencies in a Gradle build.
idea
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
Importing and debugging Eclipse projects in IntelliJ IDEA
Last week I faced a situation to import some Eclipse projects to IntelliJ IDEA, my default Java IDE. IntelliJ IDEA supports this integration, just go to File...
intellij
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
Importing and debugging Eclipse projects in IntelliJ IDEA
Last week I faced a situation to import some Eclipse projects to IntelliJ IDEA, my default Java IDE. IntelliJ IDEA supports this integration, just go to File...
optional
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
collections
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
junit
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
junit5
About JUnit 5 parameterized tests
Interesting article about JUnit 5 parameterized tests using BDD (Behaviour-Driven Development) style. It shows an example of using @CsvSource as arguments so...
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
mockito
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
palindrome
K Palindromes puzzle
Here we have the K Palindromes puzzle from Javalobby:
string
K Palindromes puzzle
Here we have the K Palindromes puzzle from Javalobby:
kata
JavaCodeKata – Lambdas
I’ve came across that kata from @brjavaman and @yanaga to teach lambdas, one of the new features of JDK 8.
stream
JavaCodeKata – Lambdas
I’ve came across that kata from @brjavaman and @yanaga to teach lambdas, one of the new features of JDK 8.
debug
Importing and debugging Eclipse projects in IntelliJ IDEA
Last week I faced a situation to import some Eclipse projects to IntelliJ IDEA, my default Java IDE. IntelliJ IDEA supports this integration, just go to File...
eclipse
Importing and debugging Eclipse projects in IntelliJ IDEA
Last week I faced a situation to import some Eclipse projects to IntelliJ IDEA, my default Java IDE. IntelliJ IDEA supports this integration, just go to File...
teamwork
35 programming habits that make your code smell
Interesting article about some bad programming practices, including topics like code organization, teamwork, testing and maintenance.
jdk9
Java 8: Converting Optional Collection to the Streams API
Although Java 9 has already been released, this post is about converting an optional collection to the Streams API introduced in Java 8.
interface
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
polymorphism
Refactoring large conditional method using method references
Some years ago I wrote junit-parameters, which is basically a custom JUnit test runner that make it possible to add parameters to JUnit 4 test methods.
combinations
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
java11
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
jcombiner
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
jdk11
Jcombiner: Combinations of collections for Java
JCombiner is a framework to generate combinations of collections for Java. I have written it in Java 11 using Java 9 modules (JPMS) and Gradle as build tool....
jdk14
Writing your own custom Java stream collector
One of the common operations of the Collectors API introduced in Java 8 is the possibility to collect results into a result container like List, Set or Map. ...
test
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
tests
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
unittests
About using Test Doubles in tests
I have just read an interesting chapter from the Software Engineering book at Google about using Test Doubles in tests.
Kafka
About patterns for handling errors in Kafka applications
I have just read an interesting article about patterns for handling errors in Kafka. The article presents four patterns for handling errors in Kafka applicat...
spring
About patterns for handling errors in Kafka applications
I have just read an interesting article about patterns for handling errors in Kafka. The article presents four patterns for handling errors in Kafka applicat...
spring boot
About patterns for handling errors in Kafka applications
I have just read an interesting article about patterns for handling errors in Kafka. The article presents four patterns for handling errors in Kafka applicat...