ShuffleTest.java Source code

Introduction

Here is the source code for ShuffleTest.java

Source

/*
   This program is a part of the companion code for Core Java 8th ed.
   (http://horstmann.com/corejava)
    
   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/>.
*/

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * This program demonstrates the random shuffle and sort algorithms.
 * @version 1.10 2004-08-02
 * @author Cay Horstmann
 */
public class ShuffleTest {
    public static void main(String[] args) {
        List<Integer> numbers = new ArrayList<Integer>();
        for (int i = 1; i <= 49; i++)
            numbers.add(i);
        Collections.shuffle(numbers);
        List<Integer> winningCombination = numbers.subList(0, 6);
        Collections.sort(winningCombination);
        System.out.println(winningCombination);
    }
}