UseRegularExpression.java

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-]+)*$";

 

    System.out.print("输入手机号码: ");

    String input=reader.readLine();

 

    if(input.macthes(phoneEL))

      System.out.println("格式正确");

    else

      System.out.println("格式错误");

 

    System.out.print("输出href标签: ");

    input=reader.readLine();

 

    if(input.matches(urlEL))

      System.out.println("格式正确");

    else

      System.out.println("格式错误");

 

    System.out.print("输入电子邮件 ");

    input=reader.readLine();

 

    if(input.matches(emailEL))

      System.out.println("格式正确");

    else

      System.out.println("格式错误");

  }

}