import java.io.*;

public class UseRegularExpression {

public static void main(String args[])

throws IOException {

BufferedReader reader =

new BufferedReader(

new InputStreamReader(System.in));

System.out.println("abcdefgabcabc".replaceAll(".bc", "###"));

String phoneEL = "[0-9]{4}-[0-9]{6}";

String urlEL = "<a.+href*=*['\"]?.*?['\"]?.*?>";

String emailEL = "^[_a-z0-9-]+(.[_a-z0-9-]+)*" +

"@[a-z0-9-]+(.[a-z0-9-]+)*$";

System.out.print("輸入手機號碼: ");

String input = reader.readLine();

if(input.matches(phoneEL))

System.out.println("格式正確");

else

System.out.println("格式錯誤");

System.out.print("輸入href標籤: ");

input = reader.readLine();

// 驗證href標籤

if(input.matches(urlEL))

System.out.println("格式正確");

else

System.out.println("格式錯誤");

System.out.print("輸入電子郵件: ");

input = reader.readLine();

// 驗證電子郵件格式

if(input.matches(emailEL))

System.out.println("格式正確");

else

System.out.println("格式錯誤");

}

}