How Can I Retrieve a List of Open Windows and Processes in Java?

Retrieving a List of Open Windows/Processes in Java

For a comprehensive approach to retrieving a list of currently open windows and processes on a local machine using Java, consider the following techniques:

Tasklist Command:

For Windows operating systems, you can use the "tasklist" command to display a list of active tasks or processes. To integrate this into Java, you can execute the command using the Runtime.getRuntime().exec() method:

String line;
Process p = Runtime.getRuntime().exec(System.getenv("windir") +"\system32\"+"tasklist.exe");
BufferedReader input =
        new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = input.readLine()) != null) {
    System.out.println(line); // Parse data here.
}

PS Command:

On Unix-based operating systems (including Linux and macOS), you can use the "ps -e" command to list all active processes. To utilize this in Java, you can employ the following code:

String line;
Process p = Runtime.getRuntime().exec("ps -e");
BufferedReader input =
        new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = input.readLine()) != null) {
    System.out.println(line); // Parse data here.
}

Regardless of the platform, the output from both commands can be parsed to extract the necessary information about open windows and processes. This information could include details such as process name, ID, and resource usage.

The above is the detailed content of How Can I Retrieve a List of Open Windows and Processes in Java?. For more information, please follow other related articles on the PHP Chinese website!