小编use*_*096的帖子

鉴于以下界面,

 public interface Callback<T> {
    <K, V> T execute(Operation<K, V> operation) throws SomeException;
 }

我如何在一个operation类型为的新匿名类中实现该接口Operation<String,String>

例如,这不编译:

 Callback<Boolean> callback = new Callback<Boolean>() {
        @Override
        public Boolean execute(Operation<String, String> operation) {
              return true;
        }
 };
 executor.execute(callback);