JAVA语言正则表达式实现密码规则设置

<span style="font-size:18px;">密码规则：长度不能小于6位，必须包含字母和数字。</span>

public void say() {
Scanner sc = new Scanner(System.in);
String password = "";
int i = 0;

while (i < 3) {
System.out.println("请输入你的密码：");
password = sc.nextLine();
if (password.length() < 6) {
System.out.println("您的密码长度小于6");
} else {
boolean boo1 = password.matches("\\d*[a-z]+\\d*");// 正则表达式
boolean boo2 = password.matches("[a-z]*\\d+[a-z]*");
if (boo1 & boo2) {
System.out.println("您的密码设置成功");
break;
}
}
/*
* if (containsLetter(password) && containsNumber(password)) {
* System.out.println("你的密码保存成功"); break;
*
* } }
*/

if (i == 2) {
System.out.println("对不起，三次输入已完结！");
return;
}
i++;
}
System.out.println("你的密码是：" + password + "");
}
/*
* private boolean containsNumber(String str) { String number =
* "1234567890"; for (int i = 0; i < str.length(); i++) { char c =
* str.charAt(i); if (number.contains("" + c)) { return true; } }
*
* return false; }
*
* private boolean containsLetter(String str) { String letter =
* "qwertyuioplkjhgfdsazxcvbnm"; for (int i = 0; i < str.length(); i++) {
* char c = str.charAt(i); if (letter.contains("" + c)) { return true; } }
* return false; }
*/
}