package packt.packt.com.java.apachecommons; import org.apache.commons.lang3.StringUtils; import org.apache.commons.lang3.text.StrSubstitutor; import org.apache.commons.lang3.text.StrTokenizer; import org.apache.commons.validator.EmailValidator; import org.apache.commons.validator.routines.IntegerValidator; import static java.lang.System.*; import java.util.HashMap; import java.util.Map; import java.util.regex.Pattern; public class App { public static void main(String[] args){ String dirtyText = "Call me Ishmael. Some years ago- never mind how"; dirtyText += " long precisely - having little or no money in my purse,"; dirtyText += " and nothing particular to interest me on shore, I thought"; dirtyText += " I would sail about a little and see the watery part of the world."; // apacheCommonsTokenizer(dirtyText); validateEmailApache(dirtyText); //out.println(validateInt("1234")); //out.println(findReplaceApacheCommons(dirtyText,"me","X")); } public static void apacheCommonsTokenizer(String text){ StrTokenizer tokenizer = new StrTokenizer(text,","); while (tokenizer.hasNext()) { out.println(tokenizer.next()); } } public static String validateEmailApache(String email){ email = email.trim(); EmailValidator eValidator = EmailValidator.getInstance(); if(eValidator.isValid(email)){ return email + " is a valid email address."; }else{ return email + " is not a valid email address."; } } public static String validateInt(String text){ IntegerValidator intValidator = IntegerValidator.getInstance(); if(intValidator.isValid(text)){ return text + " is a valid integer."; }else{ return text + " is not a valid integer."; } } public static String findReplaceApacheCommons(String text, String toFind, String replaceWith){ out.println(text); text = StringUtils.replacePattern(text, "\\W\\s", " "); out.println(text); //out.println(StringUtils.replace(text, " me ", "X")); return StringUtils.replace(text, " me ", "X"); } }