import java.util.List;
import java.util.Random;
/**
* 實現隨機抽取，例如35選7等
*
* @author Administrator
*
*/
public class RandomSelect {
public static int[] randomSelect(int total, int number) {
int[] result = new int[number];
List<String> list = new ArrayList<String>();
Random r = new Random();
for (int i = 0; i < total; i++) {
list.add(i + 1 + "");
}
for (int j = 0; j < number; j++) {
int size = list.size();
String s = list.get(r.nextInt(size));
result[j] = Integer.parseInt(s);
list.remove(s);
}
return result;
}
public static void main(String[] args) {
int[] red = randomSelect(33, 6);
int[] blue = randomSelect(16, 1);
System.out.println("紅球是：");
for (int i = 0; i < red.length; i++) {
System.out.print(red[i] + "\t");
}
System.out.println("\n藍球是：");
for (int i = 0; i < blue.length; i++) {
System.out.println(blue[i] + "\t");
}
}
}