How Can I Execute Command Lines Within a Java Application?

Executing Command Lines in Java

This article explores a common challenge faced by developers: executing command lines within Java applications. While it is straightforward to execute commands from the console, executing them from Java requires a specific approach. Let's dive into the solution provided for this query.

The question presents a need to execute the following command line:

java -jar map.jar time.rel test.txt debug

Within a Java application, the suggested solution involves utilizing the Runtime class. Here's how you can achieve this:

Runtime rt = Runtime.getRuntime();
Process pr = rt.exec("java -jar map.jar time.rel test.txt debug");

In this code, the getRuntime() method obtains the reference to the Java virtual machine's runtime environment. The exec() method then executes the specified command, creating a Process object. This object represents the running process and allows for monitoring and manipulation.

For more comprehensive information on the Runtime class and process handling, you can refer to the official Java documentation: http://docs.oracle.com/javase/7/docs/api/java/lang/Runtime.html.

The above is the detailed content of How Can I Execute Command Lines Within a Java Application?. For more information, please follow other related articles on the PHP Chinese website!