package xuanke;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class RandString {
List<String> randStr = new ArrayList<>();
public void getRandStr(){
String n = "abcdefghigklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
Random random = new Random();
for(int i =0;i<10;i++){
int j =0;
StringBuffer sb = new StringBuffer();
for(int k = random.nextInt(10);j<k;){
// 就是这里↓ 明明处理了随机到0的情况，但是还是会出现空字符串
if(k==0){
continue;
}else{
int a = random.nextInt(n.length()-1);
sb.append(n.charAt(a));
j++;
}
}
randStr.add(sb.toString());
}
}
public void forEcheGetRandStr(){
for (String string : randStr) {
System.out.println(string);
}
}
public static void main(String[] args) {
// TODO 自动生成的方法存根
RandString rs = new RandString();
rs.getRandStr();
rs.forEcheGetRandStr();
}
}
