Java实现简单双色球摇奖功能过程解析

package Javaee;
import java.util.Arrays;
import java.util.Random;
public class DoubleChromosphere {
	public static void main(String[] args) {
		//定义红球池
		int[] redpool = new int[33];
		//添加红球数字
		for (int i = 0; i < redpool.length; i++) {
			redpool[i] = i + 1;
		}
		//定义篮球池
		int[] bluepool=new int[16];
		for (int j = 0; j < bluepool.length; j++) {
			bluepool[j] = j + 1;
		}
		//定义被选中的红球
		int[] redballs =new int[6];
		int x;
		A: for (int i = 0; i < redballs.length; i++) {
			x = new Random().nextint(33);
			for (int j = 0; j <= i; j++) {
				//去重过程
				//判断当前循环取出的红球是否跟前几次取出的一样
				//如果一样 大循环A向后退一次，重新取出红球
				if (redballs[j] == redpool[x]) {
					i--;
					continue A;
				}
			}
			//如果不一样，则把取出的红球池中取出的红球放入红球数组中
			redballs[i] = redpool[x];
		}
		//取出篮球
		int a = bluepool[new Random().nextint(16)];
		//利用冒泡排序对红球进行排序
		int temp;
		for (int i = 0; i < redballs.length-1; i++) {
			for (int j = 0; j < redballs.length-i-1; j++) {
				if (redballs[j]>redballs[j+1]) {
					temp=redballs[j+1];
					redballs[j+1]=redballs[j];
					redballs[j]=temp;
				}
			}
		}
		System.out.println("红球为：" + Arrays.toString(redballs));
		System.out.println("蓝球为：" +a);
	}
}