java new ProcessBuildernew String cmd c command;

This line of Java code creates a new ProcessBuilder object that will execute a command in a command prompt (Windows) or terminal (Unix/Linux) environment.

The command to be executed is passed in as a string array, with the first element being the command prompt/terminal program ("cmd" on Windows, "terminal" on Unix/Linux), the second element being the "/c" flag (which tells the command prompt/terminal to execute the following command), and the third element being the actual command to be executed.

For example, if the command passed in was "dir" (which lists the files in the current directory on Windows), the full command that would be executed by the ProcessBuilder object would be "cmd /c dir"