content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  import java.util.function.Consumer;
  class Transform {
    public void sayHi(int recur, Consumer<String> reporter, Runnable r) {
      privateSayHi(recur, reporter, r);
    }
  
    private void privateSayHi(int recur, Consumer<String> reporter, Runnable r) {
      reporter.accept("hello" + recur);
      if (recur == 1) {
        r.run();
        privateSayHi(recur - 1, reporter, r);
      } else if (recur != 0) {
        privateSayHi(recur - 1, reporter, r);
      }
      reporter.accept("goodbye" + recur);
    }
  }
  