Create HashSet<Integer> from int[] array - Java java.util

Java examples for java.util:HashSet

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Description

Create HashSet<Integer> from int[] array

Demo Code

/*/*w  w w.  j  ava2 s.  co m*/
 * http://code.google.com/p/ametro/
 * Transport map viewer for Android platform
 * Copyright (C) 2009-2010 contacts@ametro.org Roman Golovanov and other
 * respective project committers (see project home page)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *  
 */
//package com.java2s;

import java.util.HashSet;

public class Main {
    public static void main(String[] argv) {
        int[] values = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };
        System.out.println(toHashSet(values));
    }

    public static HashSet<Integer> toHashSet(int[] values) {
        if (values == null) {
            return null;
        }
        final HashSet<Integer> res = new HashSet<Integer>();
        for (int state : values) {
            res.add(state);
        }
        return res;
    }
}

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