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chenwenhang
AlgorithmPractice
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ValidPhoneNumber.java
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ValidPhoneNumber.java
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package other;
/**
* @Author: Wenhang Chen
* @Description:给定一个包含电话号码列表(一行一个电话号码)的文本文件 file.txt,写一个 bash 脚本输出所有有效的电话号码。
* <p>
* 你可以假设一个有效的电话号码必须满足以下两种格式: (xxx) xxx-xxxx 或 xxx-xxx-xxxx。(x 表示一个数字)
* <p>
* 你也可以假设每行前后没有多余的空格字符。
* <p>
* 示例:
* <p>
* 假设 file.txt 内容如下:
* <p>
* 987-123-4567
* 123 456 7890
* (123) 456-7890
* 你的脚本应当输出下列有效的电话号码:
* <p>
* 987-123-4567
* (123) 456-7890
* @Date: Created in 9:48 5/22/2020
* @Modified by:
*/
public class ValidPhoneNumber {
public static void main(String args[]) {
isPhoneValid("13877889900");
isPhoneValid("184-585-4009");
isPhoneValid("13977889900");
isPhoneValid("12345678900");
isPhoneValid("1.999-585-4009");
isPhoneValid("089812399312");
isPhoneValid("1 585 4009");
isPhoneValid("136-myphone123");
isPhoneValid("17789722552");
}
public static boolean isPhoneValid(String phone) {
boolean retval = false;
String phoneNumberPattern = "^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1})|(17[0-9]{1}))+\\d{8})?$";
retval = phone.matches(phoneNumberPattern);
String msg = "No, pattern:" + phone + " regex: " + phoneNumberPattern;
if (retval) {
msg = "Yes, pattern:" + phone + " regex: " + phoneNumberPattern;
}
System.out.println(msg);
return retval;
}
}
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