Many Java applications started from the command line take arguments to control their behavior. These arguments are available in the string array argument passed into the application’s static main() ...

One of our biggest challenges as software developers is organizing our code so that it is easier to extend and maintain. The Command pattern helps us do that by encapsulating all the data required to ...

Here are the three easiest ways to fix Java’s “not recognized as an internal or external command” error: Install or reinstall Java and the JDK on your computer Add Java’s bin directory to the computer ...

Does anybody know of an elegant implementation of a command-line parser written in Java? The one I'm using (JavaPopt can't match multiple arguments with the same flag (e.g. -I/home/yak/foo -I/home/yak ...

JDK 5.0 and JDK 6.0 include the Java Monitoring & Management Console tool, also known as JConsole. Read about JConsole's usage options, and find out how JConsole changed from JDK 5 to JDK 6. In ...

For Java-based programs such as Maven, Jenkins, Gradle or Tomcat to run, they need to know that Java's JDK is installed. That's the purpose of the JAVA_HOME environment variable. It tells programs ...

I find myself needing to write a Java console application and am quite rusty. Can anyone recommend a good analogue to Python's optparse library (or comment on the Apache Commons CLI)? Also, this is ...