This question already has answers here:
How to find how much disk space is left using Java?
(4 answers)
Closed 8 years ago.
I am looking for simple solution for finding total disk space and available space of a remove machine using java program.
Please help
Update
There are questions already similar to this with primarily focus on local machine. I was looking solution for remote machine.
The easiest way to get the remote machine information and also safe way to do
is to SSH to the server from Java and get the necessary information from.
use JSch Library for SSH connection to server.
for an example look here
Related
This question already has answers here:
How can a program control another program?
(11 answers)
Closed 8 years ago.
I wonder is possible to make a bot writen in JAVA, which will open some program(program is under windows), click on the button in this program and type some data, check status of this program(login or logout, this is client for online game).
Which JAVA tools I need ? I think that java robot lib is not enough for this.
Thanks in advance.
You cannot do this using JAVA.
JAVA is a language which is loosely coupled with operating systems, so it can only receive mouse/key messages from underlying OS. Among all the tasks you mentioned , it can only start the program by using Runtime.execute.
If you want to implement a software like this ,you should use Visual Studio and use Microsoft technologies.
This question already has answers here:
How Do I Eject a Volume in Java?
(2 answers)
Closed 3 years ago.
I know that questions like this have been asked before, but I couldn't find any more recent ones and I have a twist to my question.
I've developed an application in Java that is designed to run on removable media, and work on both Windows and Mac. I would like to add a button to safely remove/eject the device, if it is supported (i.e a USB drive). Is there a command line for each operating system that would allow me to do this?
I know that it can be done by an application running on the device to be ejected, because I've seen one that does it, but obviously I understand there are certain limitations to Java.
Thanks in advance
This is something that you will have to do by invoking an auxiliary application. These applications are not platform independent as you wish. So, to do that, find out which OS you are on by using System.getProperty("os.name") and invoke the appropriate command for the detected OS. Invoking applications is done with Runtime.getRuntime().exec(). Search for the commands you need for each OS.
This question already has answers here:
How do I monitor the computer's CPU, memory, and disk usage in Java?
(12 answers)
Closed 9 years ago.
I have searched all over the internet for about two days now. I have found a lot about how to find the CPU usage using VB and anything in the .NET framework. I am not using the .NET framework so these are irrelevant, I feel.
What I really need is results similar to the ones shown in the "CPU Usage" section in a Windows Task Manager under the "Performance" tab. If I could find a way to mimic that calculation, then that is exactly what I am looking for. I need the percentage of CPU Usage.
Obviously, Java is not the ideal language for finding the CPU usage of a computer, but that is the language I am using and I have been able to get everything else I need about the computer except this.
I am using Windows 7 with Java version 7 update 21. Eclipse is my IDE.
This is my first time posting a question on here, so if I have left anything out or something is not clear, please ask and I will do my best to explain more of what I mean.
There are a couple of ways to do this; one is to run a command-line tool and parse the output. On Windows 7, you can run
c:\Windows\system32\typeperf "\processor(_total)\% processor time"
Try it -- it prints a few lines of sampled CPU load data.
Another way is to use OperatingSystemMXBean .
This question already has answers here:
Can jconsole data be retrieved from the command line?
(9 answers)
Closed 7 years ago.
I want to write a JUnit testcase that will also be able to monitor and collect the parameters of a JVM, like the memory usage, heap size and other custom JMX managed beans etc. I will be having the JMX address of the JVM. More clearly, I would like to know if I could gather the information that jconsole provides but programatically without a UI. And then I would want to check if the JVM performance has degraded or not by integrating it with Jenkins. Are there any already available tools that do this?
You might consider using Virtual Machine Agent, here is a good educational article
Also you can use Profiler tools in eclipse to monitor your program performance
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How to open a file with the default associated program
As in the title, how to determine the application that will be used by the OS to open a file?
For example I'd like to retrieve the application name and it's path for random pdf file...
Is there an internal Java method independant of the OS (working for most of them)?
Thx...
Probably not. For Windows, you need to deal with the registry. Writing to the Windows registry in Java is discussed in read/write to Windows Registry using Java.