Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * File:                CollectionUtil.java
 * Authors:             Justin Basilico
 * Company:             Sandia National Laboratories
 * Project:             Cognitive Foundry
 *
 * Copyright March 25, 2008, Sandia Corporation.
 * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
 * license for use of this work by or on behalf of the U.S. Government. Export
 * of this program may require a license from the United States Government.
 * See CopyrightHistory.txt for complete details.
 *
 */

import java.util.ArrayList;

import java.util.Comparator;

public class Main {
    /**
     * Swaps the indices "a" and "b" in the array "indices" if the corresponding
     * data values data[indices[a]] is greater than data[indices[b]].
     * @param <ComparableType> Type of data to compare to.
     * @param a first index
     * @param b second index
     * @param indices array of indices to index into "data", which is
     * modified by this method.
     * @param data ArrayList of values, unchanged.
     * @param comparator Comparator used to determine if two values
     * are greater than, less than, or equal to each other.
     * @return
     * True if swapped, false if left alone.
     */
    private static <ComparableType> boolean swapIfAGreaterThanB(int a, int b, int[] indices,
            ArrayList<? extends ComparableType> data, Comparator<? super ComparableType> comparator) {
        final boolean doSwap = comparator.compare(data.get(indices[a]), data.get(indices[b])) > 0;
        if (doSwap) {
            swapArrayValues(a, b, indices);
        }
        return doSwap;

    }

    /**
     * Swaps the two indexed values in the indices array.
     * @param i1 First index
     * @param i2 Second index
     * @param indices Array of indices to swap
     */
    private static void swapArrayValues(int i1, int i2, int[] indices) {
        int temp = indices[i1];
        indices[i1] = indices[i2];
        indices[i2] = temp;
    }
}