import java.util.Enumeration;
import java.util.Properties;

public class PrintSystemProperties {
	public static void main( String[] args ){
		Properties p = System.getProperties();
		Enumeration e = p.propertyNames();
		while( e.hasMoreElements() ){
			String key = e.nextElement().toString();
			System.out.println( key + " = " + p.getProperty( key ));
		}
	}
}