Display the current user name, current OS version, Java version, Java Home using java code.

package one;

public class Version {

public static void main(String[] a)

{

String s1="user.name";

String s2="os.version";

String s3="java.version";

String s4="java.home";

System.out.println("The current user is " + System.getProperty(s1));

System.out.println("Os version: " + System.getProperty(s2));

System.out.println("Java version: " + System.getProperty(s3));

System.out.println("Java Home: " + System.getProperty(s4));

}

}