Java Array Swap swap(int[] array, int index0, int index1)

Description

swap

License

Apache License

Declaration

static public void swap(int[] array, int index0, int index1) 

Method Source Code

//package com.java2s;
/**/*  w w w  . j  av a  2  s .c o  m*/
 * Copyright 2014, Emory University
 * 
 * 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.
 */

import java.util.List;

public class Main {
    static public void swap(int[] array, int index0, int index1) {
        int tmp = array[index0];
        array[index0] = array[index1];
        array[index1] = tmp;
    }

    static public <T> void swap(List<T> list, int index0, int index1) {
        T tmp = list.get(index0);
        list.set(index0, list.get(index1));
        list.set(index1, tmp);
    }

    /** @return the index'th item if exists; otherwise, {@code null}. */
    static public <T> T get(List<T> list, int index) {
        return isRange(list, index) ? list.get(index) : null;
    }

    /** @return the index'th item if exists; otherwise, {@code null}. */
    static public <T> T get(T[] array, int index) {
        return isRange(array, index) ? array[index] : null;
    }

    static public <T> boolean isRange(List<T> list, int index) {
        return 0 <= index && index < list.size();
    }

    static public <T> boolean isRange(T[] array, int index) {
        return 0 <= index && index < array.length;
    }
}

Related

1. swap(int[] arr, int a, int b, int c, int d, int key)
2. swap(int[] arr, int i, int j)
3. swap(int[] array)
4. swap(int[] array, int i, int j)
5. swap(int[] array, int idx1, int idx2)
6. swap(int[] array, int x, int y)
7. swap(int[] inArray, int index1, int index2)
8. swap(int[] integers, int positionX, int positionY)
9. swap(int[] list, int i, int j)