Java List Reverse sortListBySublistSizeThenHead(List> list, boolean reverseOrder)

Description

sort List By Sublist Size Then Head

License

Apache License

Declaration

public static <T extends Comparable<T>> void sortListBySublistSizeThenHead(List<List<T>> list,
            boolean reverseOrder) 

Method Source Code

//package com.java2s;
/**//from w w  w .java 2  s  . c om
 * Copyright 2015, 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.Collections;
import java.util.Comparator;
import java.util.List;

public class Main {
    public static <T extends Comparable<T>> void sortListBySublistSizeThenHead(List<List<T>> list,
            boolean reverseOrder) {
        Collections.sort(list, new Comparator<List<T>>() {
            @Override
            public int compare(List<T> o1, List<T> o2) {
                int size1 = o1.size(), size2 = o2.size();
                if (size1 == size2 && size1 > 0 && size2 > 0)
                    return o1.get(0).compareTo(o2.get(0));
                return size1 - size2;
            }
        });
        if (reverseOrder)
            Collections.reverse(list);
    }
}

Related

1. reversePermutation(final List permutation)
2. reversePermutation(T[] arr, List p)
3. reverseSort(final List lines)
4. reverseUseList(int[] values)
5. reverseVector(List vector)
6. sortReverse(List list)
7. sortReverseOrder(List list)
8. toReverse(List list)