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Google Collections Library is a suite of new collections and collection-related goodness for Java 5.0

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/*
 * Copyright (C) 2007 Google Inc.
 *
 * 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.
 */

package com.google.common.collect;

/**
 * Provides an implementation of {@link Object#toString} for {@link Iterable}
 * instances.
 *
 * @author Mike Bostock
 */
public abstract class AbstractIterable implements Iterable {
  /**
   * Returns a string representation of this iterable. The string representation
   * consists of a list of the iterable's elements in the order they are
   * returned by its iterator, enclosed in square brackets ("[]"). Adjacent
   * elements are separated by the characters ", " (comma and space). Elements
   * are converted to strings as by {@link String#valueOf(Object)}.
   */
  @Override public String toString() {
    return Iterables.toString(this);
  }
}