import java.util.Iterator;
import java.util.Map.Entry;
import java.util.Properties;

public class sysinfo {

 public static void main(String[] args) {
  Properties p = System.getProperties();
  Iterator<Entry<Object, Object>> it= p.entrySet().iterator();
  while(it.hasNext()){
   Entry<Object,Object> item=it.next();
   System.out.print(item.getKey()+"===");
   System.out.println(item.getValue());
  }
 }
}

 public static void main(String[] args) {
  String s = System.getProperties().toString();
  System.out.println(s);
        }
}

public class sysinfo {

 public static void main(String[] args) {

  String s = System.getProperties().toString();
  System.out.println(s);

  String[] ss=s.split(",");
  for(String e:ss){
  System.out.println(e);
  }
 }

}