77 lines
1.5 KiB
Java
77 lines
1.5 KiB
Java
/*
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* Copyright (C) 2021 Christian Pierre MOMON <christian.momon@devinsy.fr>
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*
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* This file is part of AgirStatool, simple key value database.
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*
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* AgirStatool is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* AgirStatool is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with AgirStatool. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.april.agirstatool.core;
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import java.util.ArrayList;
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import java.util.Collections;
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/**
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* The Class LongList.
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*/
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public class LongList extends ArrayList<Long>
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{
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private static final long serialVersionUID = 2724688980125113107L;
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/**
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* Instantiates a new stat.
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*/
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public LongList()
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{
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super();
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}
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/**
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* Median.
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*
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* @return the double
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*/
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public double median()
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{
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double result;
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sort();
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if (this.isEmpty())
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{
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result = 0;
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}
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else if (this.size() % 2 == 0)
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{
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long a = get(this.size() / 2 - 1);
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long b = get(this.size() / 2);
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result = (a + b) / 2;
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}
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else
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{
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result = get(this.size() / 2);
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}
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//
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return result;
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}
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/**
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* Sort.
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*/
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public void sort()
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{
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Collections.sort(this);
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}
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}
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