Here's a Java program to determine the name and version of the operating system:

public class Main {
    public static void main(String[] args) {
        String osName = System.getProperty("os.name");
        String osVersion = System.getProperty("os.version");

        System.out.println("Operating system name: " + osName);
        System.out.println("Operating system version: " + osVersion);
    }
}

This program uses the System.getProperty method to retrieve the values of two system properties: "os.name" and "os.version". These properties contain the name and version of the operating system, respectively. We then print these values to the console using System.out.println.

When you run this program, you will see output similar to the following:

Operating system name: Windows 10
Operating system version: 10.0

Note that the values of these system properties may differ depending on the operating system that the program is running on.