code: public static void main(String[] args) {
          if (args.length < 2) {
              System.out.println("Usage: java twitter4j.examples.friendship.ShowFriendship [source screen name] [target screen name]");
              System.exit(-1);
          }
          try {
              Twitter twitter = new TwitterFactory().getInstance();
              Relationship relationship = twitter.showFriendship(args[0], args[1]);
              System.out.println("isSourceBlockingTarget: " + relationship.isSourceBlockingTarget());
              System.out.println("isSourceFollowedByTarget: " + relationship.isSourceFollowedByTarget());
              System.out.println("isSourceFollowingByTarget: " + relationship.isSourceFollowingTarget());
              System.out.println("isSourceNotificationsEnabled: " + relationship.isSourceNotificationsEnabled());
              System.out.println("canSourceDm: " + relationship.canSourceDm());
              System.exit(0);
          } catch (TwitterException te) {
              te.printStackTrace();
              System.out.println("Failed to show friendship: " + te.getMessage());
              System.exit(-1);
          }
      }
docs: Usage: java twitter4j.examples.friendship.ShowFriendship  [source screen name] [target screen name]
  
  @param args message