public class Tesyt {


public static void main(String[] args) {
//isPhoneNumberValid("0731-6296363");
//isPhoneNumberValid("0731-62963636");
//isPhoneNumberValid("021-6296366");
isPhoneNumberValid("021-62963636");
//isPhoneNumberValid("400-820-0222");
//isPhoneNumberValid("18977323127");

}

//主要的方法

public static boolean isPhoneNumberValid(String phoneNumber) {
boolean isValid = false;
String expression = "^((13[0-9])|(15[^4,\\D])|(14[0,1-9])|(18[0,1-9])|(17[0,1-9]))\\d{8}$"
+"||"+"^\\d{3}-?\\d{3}-?\\d{4}|\\d{3}-?\\d{3}-?\\d{4}&"
+"||"+"^\\d{4}-?\\d{8}|\\d{4}-?\\d{8}&"
+"||"+"^\\d{4}-?\\d{7}|\\d{4}-?\\d{7}&"
+"||"+"^\\d{3}-?\\d{7}|\\d{4}-?\\d{7}&"

+"||"+"^\\d{3}-?\\d{8}|\\d{4}-?\\d{8}&";

//String expression = "^\\d{3}-?\\d{8}|\\d{4}-?\\d{8}&";//前面三位，後面八位
//String expression = "^\\d{3}-?\\d{7}|\\d{4}-?\\d{7}&";//前面三位，後面七位
//String expression = "^\\d{4}-?\\d{7}|\\d{4}-?\\d{7}&";//前面四位，後面七位
//String expression = "^\\d{4}-?\\d{8}|\\d{4}-?\\d{8}&";//前面四位，後面八位

//String expression = "^\\d{3}-?\\d{3}-?\\d{4}|\\d{3}-?\\d{3}-?\\d{4}&";//400的
//String expression = "^((13[0-9])|(15[^4,\\D])|(14[0,1-9])|(18[0,1-9])|(17[0,1-9]))\\d{8}$";//手機號
CharSequence inputStr = phoneNumber;
Pattern pattern = Pattern.compile(expression);
Matcher matcher = pattern.matcher(inputStr);
if (matcher.matches()) {
isValid = true;
System.out.println(isValid);
}else{
System.out.println(isValid);
}
return isValid;
}
}