わーい、すごーい

public class Friends {
    public static void main(String[] args) {
        wai();
        sugoi();
        tanoshii();
        friends( "クソリプ" );
    }

    public static void wai() {
        System.out.println( "わーい" );
    }

    public static void sugoi() {
        System.out.println( "すごーい" );
    }

    public static void tanoshii() {
        System.out.println( "たのしー" );
    }

    public static void friends( String skill ) {
        System.out.println( String.format("君は%sがとくいな、フレンズなんだね!!", skill) );
    }
}

便乗。
http://qiita.com/t_ishida/items/bae7e62950d81f427f13