Module org.jgrapht.core
Package org.jgrapht.util

Class ArrayUtil

  • public class ArrayUtil
extends java.lang.Object
    Utility class to simplify handling of arrays.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private ArrayUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void reverse​(int[] arr, int from, int to)
      Reverses the order of the elements in the specified range within the given array.
      static <V> void reverse​(V[] arr, int from, int to)
      Reverses the order of the elements in the specified range within the given array.
      static <V> void swap​(V[] arr, int i, int j)
      Swaps the two elements at the specified indices in the given array.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • ArrayUtil

        private ArrayUtil()

    • Method Detail

      • reverse

        public static final <V> void reverse​(V[] arr,
                                     int from,
                                     int to)
        Reverses the order of the elements in the specified range within the given array.
        Type Parameters:
        V - the type of elements in the array
        Parameters:
        arr - the array
        from - the index of the first element (inclusive) inside the range to reverse
        to - the index of the last element (inclusive) inside the range to reverse

      • reverse

        public static final void reverse​(int[] arr,
                                 int from,
                                 int to)
        Reverses the order of the elements in the specified range within the given array.
        Parameters:
        arr - the array
        from - the index of the first element (inclusive) inside the range to reverse
        to - the index of the last element (inclusive) inside the range to reverse

      • swap

        public static final <V> void swap​(V[] arr,
                                  int i,
                                  int j)
        Swaps the two elements at the specified indices in the given array.
        Type Parameters:
        V - the type of elements in the array
        Parameters:
        arr - the array
        i - the index of the first element
        j - the index of the second element