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java 로또 - SortedSet, TreeSet, Random

[czar] 2011. 3. 10. 15:57
package test;

import java.util.Random;
import java.util.SortedSet;
import java.util.TreeSet;

public class Lotto {
public static void main(String[] args) {
SortedSet<Integer> pickedNumbers = new TreeSet<Integer>();
Random random = new Random();
while (pickedNumbers.size() < 6)
pickedNumbers.add(random.nextInt(45) + 1);
System.out.println(pickedNumbers);
}
}