OSValidator.java

package testing.osvalidator;

/**
 * Created by IntelliJ IDEA.
 * User: mateusz
 * Date: 3/7/12
 * Time: 10:29 AM
 * To change this template use File | Settings | File Templates.
 */
public class OSValidator {

    public static void main(String[] args) {
        if (isWindows()) {
            System.out.println("This is Windows");
        } else if (isMac()) {
            System.out.println("This is Mac");
        } else if (isUnix()) {
            System.out.println("This is Unix or Linux");
        } else if (isSolaris()) {
            System.out.println("This is Solaris");
        } else {
            System.out.println("Your OS is not support!!");
        }
    }

    public static boolean isWindows() {

        String os = System.getProperty("os.name").toLowerCase();
        System.out.println(os);
        return (os.indexOf("win") >= 0);

    }

    public static boolean isMac() {

        String os = System.getProperty("os.name").toLowerCase();
        // Mac
        return (os.indexOf("mac") >= 0);

    }

    public static boolean isUnix() {

        String os = System.getProperty("os.name").toLowerCase();
        // linux or unix
        return (os.indexOf("nix") >= 0 || os.indexOf("nux") >= 0);

    }

    public static boolean isSolaris() {

        String os = System.getProperty("os.name").toLowerCase();
        // Solaris
        return (os.indexOf("sunos") >= 0);

    }

}