Javaだって簡単にFizzBuzz書けるもん！ ~ 匿名クラス利用 - Qiita

package reflect2; import java.lang.reflect.Constructor; import java.lang.reflect.Method; public class FizzBuzz { public static interface Dummy { default CharSequence trans(int i) { return "" + i; } } public static void main(String[] args) throws Exception { new Dummy(){{ new Dummy(){ @Override public CharSequence trans(int i) { return "FizzBuzz"; } }; new Dummy(){ @Override public CharSequence tra