Method toArray

output/java_guava/1.4.17/Ints.java:492–504

Returns an array containing each value of collection, converted to a int value in the manner of Number#intValue. Elements are copied from the argument collection as if by collection.toArray(). Calling this method is as thread-safe as calling that method. @param c

(Collection<? extends Number> collection)

  public static int[] toArray(Collection<? extends Number> collection) {
    if (collection instanceof IntArrayAsList) {
      return ((IntArrayAsList) collection).toIntArray();
    }
    Object[] boxedArray = collection.toArray();
    int len = boxedArray.length;
    int[] array = new int[len];
    for (int i = 0; i < len; i++) {
      // checkNotNull for GWT (do not optimize)
      array[i] = ((Number) checkNotNull(boxedArray[i])).intValue();
    }
    return array;
  }

  /**
   * Returns a fixed-size list backed by the specified array, similar to