http://fastutil.di.unimi.it/: fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, and fast, practical I/O classes for binary and text files.
  • Sebastiano Vigna 
package it.unimi.dsi.fastutil;

/*
 * Copyright (C) 2010-2019 Sebastiano Vigna
 *
 * 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.
 */


An object that can swap elements whose position is specified by integers.

See Also:
  • quickSort.quickSort(int, int, IntComparator, Swapper)
/** An object that can swap elements whose position is specified by integers.
 * 
 * @see Arrays#quickSort(int, int, it.unimi.dsi.fastutil.ints.IntComparator, Swapper)
 */
@FunctionalInterface
public interface Swapper {
	
Swaps the data at the given positions.

Params:
  • a – the first position to swap.
  • b – the second position to swap.
/** Swaps the data at the given positions.
	 *
	 * @param a the first position to swap.
	 * @param b the second position to swap.
	 */
	void swap(int a, int b);
}