Here’s the translation of the Go code to Java, along with explanations in Markdown format suitable for Hugo:
Our example demonstrates how to replace the current Java process with another process using the ProcessBuilder and Process classes. This is similar to the exec function in Unix-like systems.
When we run our program, it will execute the ls command with the specified arguments.
Note that Java doesn’t offer a direct equivalent to the Unix fork function. However, Java provides robust support for multithreading and process management through its java.lang.ProcessBuilder and java.lang.Process classes, which cover most use cases for process creation and management.
In this Java version, we use ProcessBuilder to set up and start the new process. The waitFor() method is used to wait for the process to complete, similar to how the original Go program would be replaced by the new process. However, in Java, control returns to our program after the executed process completes.