我需要编写一个特殊字符的java字符串和0到9之间的数字来验证密码，所以我创建了一个接收String并返回字符串的方法，如下所示,,,, 但是我不能为所有特殊字符写一个字符串，而另一个字符串写0到9的数字
public String isPasswordvalid(String password) {
String x = password;
String specialChars = "(.*[,~,!,@,#,$,%,^,&,*,(,),-,_,=,+,[,{,],},|,;,:,<,>,/,?].*$)";
String passwordNumbers = "(.*[0-9].*)";
String minSixCharacterErrorMessage = "Invalid password,Password should be at least 6 character ";
String emptyFieldErrorMessage = "Invalid password,Field is empty , please enter a Valid password";
String missingSpecialCharacterErrorMessage = "Invalid password, It must contains a special charctar";
String numberErrorMessage = "Invalid password, It must contains at least one number";
String noSpaceCharacterErrorMessage = "Invalid password, Password cant contains spaces";
if (x.isEmpty()) {
// System.out.println("Field is empty , please enter a Valid password");
return emptyFieldErrorMessage;
} else if (x.length() < 6) {
// System.out.println("Password should be min 6 character ");
return minSixCharacterErrorMessage;
} else if (!x.contains(specialChars)) {
//System.out.println("Invalid password, It must contains a special charctar");
return missingSpecialCharacterErrorMessage;
} else if (!x.contains(passwordNumbers)) {
//System.out.println("Invalid password, It must contains at least one number");
return numberErrorMessage;
} else if (x.contains(" ")) {
//System.out.println("Invalid password, Password cant contains spaces");
return noSpaceCharacterErrorMessage;
}
return "";
}