RegEx Validations utility for PhNum:

RegEx Validations utility for PhNum:

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public interface RegExPhNum {

public static boolean isValidPhNum(String phNum){

boolean flag = true;

String pattern = "(0|91)?[6-9][0-9]{9}";

Pattern pattern2 = Pattern.compile(pattern);

Matcher matcher = pattern2.matcher(phNum);

if (matcher.find()&&matcher.group().equalsIgnoreCase(phNum)) {

System.out.println("It is valid ph num");

}

else{

System.out.println("It is invalid ph num");

flag = false;

}

return flag;

}

}