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PlantUML is a component that allows to quickly write :
* sequence diagram,
* use case diagram,
* class diagram,
* activity diagram,
* component diagram,
* state diagram
* object diagram
/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2013, Arnaud Roques
*
* Project Info: http://plantuml.sourceforge.net
*
* This file is part of PlantUML.
*
* PlantUML 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.
*
* PlantUML 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* Original Author: Arnaud Roques
*
* Revision $Revision: 9786 $
*
*/
package net.sourceforge.plantuml.sudoku;
import java.util.Random;
import net.sourceforge.plantuml.Log;
public class SudokuDLX implements ISudoku {
private final String tab[];
private final long seed;
private final long rate;
public SudokuDLX(Long seed) {
if (seed == null) {
this.seed = Math.abs(new Random().nextLong());
} else {
this.seed = Math.abs(seed.longValue());
}
final DLXEngine engine = new DLXEngine(new Random(this.seed));
final String s = engine.generate(10000, 100000);
rate = engine.rate(s.replace("\n", "").trim());
tab = s.split("\\s");
}
public long getRatting() {
return rate;
}
public long getSeed() {
return seed;
}
public int getGiven(int x, int y) {
final char c = tab[x].charAt(y);
if (c == '.') {
return 0;
}
return c - '0';
}
public void print() {
for (String s : tab) {
Log.println(s);
}
Log.println("Rate=" + rate);
Log.println("Seed=" + Long.toString(seed, 36).toUpperCase());
}
public static void main(String[] args) {
for (int i = 0; i < 1; i++) {
final SudokuDLX sudoku = new SudokuDLX(null);
sudoku.print();
}
}
}