#16 - Java

Author: Josegs95

Roadmap/16 - EXPRESIONES REGULARES/java/Josegs95.java

@@ -0,0 +1,115 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Josegs95 {
+    public static void main(String[] args) {
+        //Ejercicio
+        Pattern pattern = Pattern.compile("\\d");
+        Matcher matcher = pattern.matcher("En la calle ví 2 coches, 2 perros, 1 señora y 6 farolas");
+        while(matcher.find()){
+            System.out.println("Match: " + matcher.group());
+        }
+
+        //Reto
+        System.out.println("\n");
+        retoFinal();
+    }
+
+    public static void retoFinal(){
+        /*Email
+            He decidido que los emails son validos si tienen:
+            Cadena(1-n) + '.'||'-'||'_'(opcional) + Cadena(1-n)
+            @
+            Cadena(1-n) + '-'(opcional) + '.' + Cadena(2-3)
+         */
+        List<String> emailList = getEmailExamples();
+
+        String emailPattern = "^\\w+([.\\-_]?\\w+)*@\\w+(\\-\\w+)?\\.\\w{2,3}$";
+
+        for (String email : emailList){
+            System.out.println("\""+ email + "\" es correcto: " + Pattern.matches(emailPattern, email));
+        }
+
+        //Número de telefono
+        /*He decidido que los número de teléfonos son validos si tienen:
+            9 dígitos o
+            '+' + 11 dígitos
+         */
+        List<String> phoneList = getPhoneExamples();
+
+        String phonePattern = "^\\d{9}|\\+\\d{11}$";
+
+        for (String phoneNumber : phoneList){
+            System.out.println("\""+ phoneNumber + "\" es correcto: " + Pattern.matches(phonePattern, phoneNumber));
+        }
+
+        //URL
+        /*He decidido que las URL son validas si tienen:
+            'http'|'https''://'(opcional) + (Cadena(1-n) + '.')(opcional) +
+            Cadena(1-n) + ('-' + Cadena(1-n))(opcional) + '.' + Cadena(2-3)
+         */
+        List<String> urlList = getURLExamples();
+
+        //String urlPattern = "^((http|https)?://)?(\\w+\\.)?\\w+\\.\\w{2,3}";
+        String urlPattern = "^((http|https)?://)?(\\w+\\.)?[a-zA-Z0-9]+(\\-[a-zA-Z0-9]+)*\\.\\w{2,3}";
+
+        for (String url : urlList){
+            System.out.println("\""+ url + "\" es correcta: " + Pattern.matches(urlPattern, url));
+        }
+    }
+
+    private static List<String> getEmailExamples(){
+        List<String> emailList = new ArrayList<>();
+        emailList.add("juancarlos@gmail.com");
+        emailList.add("juan.carlos@gmail.com");
+        emailList.add("juan-carlos@gmail.com");
+        emailList.add("juan_carlos@gmail.com");
+        emailList.add("juan.carlos@gmail-gmail.com");
+
+        emailList.add("juan$carlos@gmail.com");
+        emailList.add(".juancarlos@gmail.com");
+        emailList.add("juancarlos.@gmail.com");
+        emailList.add("juan.carlos@.gmailcom");
+        emailList.add("juan.carlos@gmailcom.");
+        emailList.add("juan.carlos@gmail.com.es");
+        emailList.add("juan.carlos@gmail-com");
+        emailList.add("juan.carlos@gmail-.com");
+
+        return emailList;
+    }
+
+    private static List<String> getPhoneExamples(){
+        List<String> phoneList = new ArrayList<>();
+        phoneList.add("666554433");
+        phoneList.add("+34666554433");
+
+        phoneList.add("666554433808");
+        phoneList.add("66+6554433808");
+        phoneList.add("66655");
+        phoneList.add("66655plko");
+
+        return phoneList;
+    }
+
+    private static List<String> getURLExamples(){
+        List<String> urlList = new ArrayList<>();
+        urlList.add("https://www.google.es");
+        urlList.add("www.google.es");
+        urlList.add("videos.google.es");
+        urlList.add("google.es");
+        urlList.add("www.google-new.es");
+
+        urlList.add("hptts://www.google.es");
+        urlList.add(".google.es");
+        urlList.add("google.");
+        urlList.add("www.goo_gle.es");
+        urlList.add("www.google-.es");
+        urlList.add("www.goo gle.es");
+        urlList.add("www.google.españa");
+
+        return urlList;
+    }
+
+}