双色球

import java.util.Arrays;
import java.util.Random;
import java.util.Scanner;
public class xun {
public static void main(String[] args) {
Random r=new Random();
int[] userRedBall=new int[6];
int userBlueBall=0;
int[] sysRedBall=new int[6];
int sysBlueBall=0;
int redCount=0;
int blueCount=0;
//
int[] redBall=new int[33];
for(int i=0;i<redBall.length;i++) {
redBall[i]=i+1;
}
System.out.println("1:机选，2：手动选择");
Scanner input=new Scanner(System.in);
boolean flag=true;
while(flag) {
int isAuto=input.nextInt();
switch(isAuto) {
case 1:
computerSelection(redBall,userRedBall);
userBlueBall=r.nextInt(16)+1;
flag=false;
break;
case 2:
System.out.println("请选择6个红球号码（1-33）");
for(int i=0;i<userRedBall.length;i++) {
userRedBall[i]=input.nextInt();
}
System.out.println("请选择1个红球号码（1-16）");
userBlueBall=input.nextInt();
flag=false;
default:
System.out.println("1:机选，2：手动选择");
}
}
//系统结果
computerSelection(redBall,sysRedBall);
sysBlueBall=r.nextInt(16)+1;
//统计结果
for(int i=0; i<userRedBall.length;i++) {
for(int j=0;j<sysRedBall.length-redCount;j++) {
if(userRedBall[i]==sysRedBall[j]) {
sysRedBall[j]=sysRedBall[sysRedBall.length-1-redCount];
redCount++;
}
}
}

if(userBlueBall==sysBlueBall) {
blueCount=1;
}
//
if(blueCount==0 && redCount<=3) {
System.out.println("no luck");
}else if(blueCount==1 && redCount<3) {
System.out.println("6");

}else if((blueCount==1 && redCount==3)||(blueCount==0 && redCount==4)) {
System.out.println("5");
}else if((blueCount==1 && redCount==4)||(blueCount==0 && redCount==5)) {
System.out.println("4");
}else if(blueCount==1 && redCount==5) {
System.out.println("3");
}else if(blueCount==0 && redCount==6) {
System.out.println("2");
}else if(blueCount==1 && redCount==6) {
System.out.println("1");
}else {
System.out.println("error");
}
Arrays.sort(sysRedBall);
System.out.println(Arrays.toString(sysRedBall));
Arrays.sort(userRedBall);
System.out.println(userBlueBall);
System.out.println(Arrays.toString(userRedBall));
System.out.println(userBlueBall);
}
//ballCount是红球或篮球 redBall
public static void computerSelection(int[] redBall,int[] useredBall) {
Random r=new Random();
int index=-1;
for(int i=0;i<useredBall.length;i++) {
index=r.nextInt(redBall.length-i);
useredBall[i]=redBall[index];
redBall[index]=redBall[redBall.length-1-i];
}

}
}