com.google.common.collect

Class ObjectArrays


  • @GwtCompatible(emulated=true)
public final class ObjectArrays
extends Object
    Static utility methods pertaining to object arrays.
    Since:
    2.0 (imported from Google Collections Library)

    • Method Summary

      Methods

      Modifier and Type Method and Description
      static <T> T[] concat(T[] array, T element)
      Returns a new array that appends element to array.
      static <T> T[] concat(T[] first, T[] second, Class<T> type)
      Returns a new array that contains the concatenated contents of two arrays.
      static <T> T[] concat(T element, T[] array)
      Returns a new array that prepends element to array.
      static <T> T[] newArray(Class<T> type, int length)
      Returns a new array of the given length with the specified component type.
      static <T> T[] newArray(T[] reference, int length)
      Returns a new array of the given length with the same type as a reference array.

    • Method Detail

      • newArray

        @GwtIncompatible(value="Array.newInstance(Class, int)")
public static <T> T[] newArray(Class<T> type,
                                                                                       int length)
        Returns a new array of the given length with the specified component type.
        Parameters:
        type - the component type
        length - the length of the new array

      • newArray

        public static <T> T[] newArray(T[] reference,
                               int length)
        Returns a new array of the given length with the same type as a reference array.
        Parameters:
        reference - any array of the desired type
        length - the length of the new array

      • concat

        @GwtIncompatible(value="Array.newInstance(Class, int)")
public static <T> T[] concat(T[] first,
                                                                                     T[] second,
                                                                                     Class<T> type)
        Returns a new array that contains the concatenated contents of two arrays.
        Parameters:
        first - the first array of elements to concatenate
        second - the second array of elements to concatenate
        type - the component type of the returned array

      • concat

        public static <T> T[] concat(T element,
                             T[] array)
        Returns a new array that prepends element to array.
        Parameters:
        element - the element to prepend to the front of array
        array - the array of elements to append
        Returns:
        an array whose size is one larger than array, with element occupying the first position, and the elements of array occupying the remaining elements.

      • concat

        public static <T> T[] concat(T[] array,
                             T element)
        Returns a new array that appends element to array.
        Parameters:
        array - the array of elements to prepend
        element - the element to append to the end
        Returns:
        an array whose size is one larger than array, with the same contents as array, plus element occupying the last position.