第三章习题3 在1-49中随机选6个数字

/** * 随机选号？！ *  * @author Administrator * @version 1.0-1? */public class Choice {/** * 主方法 *  * @param args */public static void main(String[] args) {double num;int[] a = new int[6];for (int i = 0; i < 6; i++) {num = Math.random();if (num >= 0.5) {num = num / 2;}int numInt = (int) (num * 100);a[i] = numInt;for (int j = 0; j < i; j++) {if (a[i] == a[j]) {i = i - j;break;}}}System.out.println("抽奖开始了！！！！");for (int i = 0; i < 6; i++) {System.out.println("第" + (i + 1) + "个号码是：" + a[i]);}}}