From 135e4b1a5787eb584c1c6e0d1a6a1a7db42886f2 Mon Sep 17 00:00:00 2001
From: Matias  Ferreira <matias.ferreira.151093@gmail.com>
Date: Tue, 22 Sep 2020 20:57:05 -0400
Subject: [PATCH] tarea terminada

---
 WebProjectTest/WebContent/META-INF/MANIFEST.MF                                                         |   3 +++
 WebProjectTest/WebContent/index.html                                                                   |  17 +++++++++++++++++
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialRequestServlet.class          | Bin 0 -> 1408 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialResponseServlet.class         | Bin 0 -> 3226 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.class      | Bin 0 -> 1455 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.class     | Bin 0 -> 5856 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaRequestServlet.class               | Bin 0 -> 1410 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaResponseServlet.class              | Bin 0 -> 1906 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.class   | Bin 0 -> 1478 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.class | Bin 0 -> 4011 bytes
 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TestServlet.class                      | Bin 0 -> 1215 bytes
 WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialRequestServlet.java                     |  46 ++++++++++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialResponseServlet.java                    |  83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.java                 |  41 +++++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.java                | 222 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaRequestServlet.java                          |  41 +++++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaResponseServlet.java                         |  39 +++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.java              |  40 ++++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.java            |  88 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 WebProjectTest/src/com/roshka/webprojecttest/servlets/TestServlet.java                                 |  40 ++++++++++++++++++++++++++++++++++++++++
 20 files changed, 660 insertions(+)
 create mode 100644 WebProjectTest/WebContent/META-INF/MANIFEST.MF
 create mode 100644 WebProjectTest/WebContent/index.html
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialRequestServlet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialResponseServlet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaRequestServlet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaResponseServlet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.class
 create mode 100644 WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TestServlet.class
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialRequestServlet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialResponseServlet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaRequestServlet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaResponseServlet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.java
 create mode 100644 WebProjectTest/src/com/roshka/webprojecttest/servlets/TestServlet.java

diff --git a/WebProjectTest/WebContent/META-INF/MANIFEST.MF b/WebProjectTest/WebContent/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..5e94951
--- /dev/null
+++ b/WebProjectTest/WebContent/META-INF/MANIFEST.MF
@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Class-Path: 
+
diff --git a/WebProjectTest/WebContent/index.html b/WebProjectTest/WebContent/index.html
new file mode 100644
index 0000000..6aca27d
--- /dev/null
+++ b/WebProjectTest/WebContent/index.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Tarea JWeb</title>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    </head>
+    <body>
+	   <p>hola mundos</p>
+	   <ol>
+		  <li><a href="http://localhost:8080/WebProjectTest/tabla-multiplicar">aprende a multiplicar!</a></li>
+		  <li><a href="http://localhost:8080/WebProjectTest/factorial">aprende a factorializar!</a></li>
+		  <li><a href="http://localhost:8080/WebProjectTest/show-me-the-bits">aprender conversion decimal/binario!</a></li>
+		</ol>
+        
+    </body>
+</html>
\ No newline at end of file
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialRequestServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialRequestServlet.class
new file mode 100644
index 0000000..053cc21
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialRequestServlet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialResponseServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialResponseServlet.class
new file mode 100644
index 0000000..874d94e
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/FactorialResponseServlet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.class
new file mode 100644
index 0000000..e2654ec
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.class
new file mode 100644
index 0000000..8dfe610
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaRequestServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaRequestServlet.class
new file mode 100644
index 0000000..4d72660
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaRequestServlet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaResponseServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaResponseServlet.class
new file mode 100644
index 0000000..1773d09
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/SumaResponseServlet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.class
new file mode 100644
index 0000000..6274918
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.class
new file mode 100644
index 0000000..3725748
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.class differ
diff --git a/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TestServlet.class b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TestServlet.class
new file mode 100644
index 0000000..b1e3b65
Binary files /dev/null and b/WebProjectTest/build/classes/com/roshka/webprojecttest/servlets/TestServlet.class differ
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialRequestServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialRequestServlet.java
new file mode 100644
index 0000000..0462480
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialRequestServlet.java
@@ -0,0 +1,46 @@
+
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/factorial")
+public class FactorialRequestServlet extends HttpServlet {
+
+	@Override
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+		// req -> datos que envia el navegador al servidor de aplicaciones
+		// resp -> la respuesta que envia el servidor de aplicaciones al navegador
+		
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		
+//		String s1 = req.getParameter("s1");
+//		String s2 = req.getParameter("s2");
+		
+		pw.write("<html>"
+				+ "<head>"
+				+ "<title>Hola, bienvenidos factorializador</title>"
+				+ "</head>"
+				+ "<body>"
+				+ "<h1>Soy un factorializador</h1>"
+				+ "<div>"
+				+ "<form action=\"factorial-response\"  >"
+				+ "Introduzca el numero: <input type=\"text\"  name=number><br>"
+				+ "<input type=\"submit\">"
+				+ "</form>"
+				+ "</div>"
+				+ "</body>"
+				+ "</html>");
+		
+		pw.close();	
+		
+	}
+}
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialResponseServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialResponseServlet.java
new file mode 100644
index 0000000..97894b8
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/FactorialResponseServlet.java
@@ -0,0 +1,83 @@
+
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/factorial-response")
+public class FactorialResponseServlet extends HttpServlet {
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		Boolean valido=true;
+		String parametro =  req.getParameter("number");
+		if(parametro.length() <1)
+			valido=false;
+		for(int i = 0 ; i < parametro.length(); i++) {
+			if(  ( !Character.isDigit(parametro.charAt(i)) && i > 0) && !(Character.isDigit(parametro.charAt(i)) && i == 0 && parametro.charAt(i) != '-' )  ) {
+				valido=false;
+				break;
+			}
+		}
+		if (!valido) {
+			pw.write("<html>"
+					+ "<head>"
+					+ "<title>Error de parametro</title>"
+					+ "</head>"
+					+ "<body>"
+					+ "No se puede generarla tabla de multiplicar. Valor del parametro \" " + parametro + " \" invalido."
+					+ "</body>"
+					+ "</html>");
+
+		}
+		else {
+			Integer numero = Integer.parseInt(parametro);
+			if(numero > 100) {
+				pw.write("<html>"
+						+ "<head>"
+						+ "<title>Error de parametro</title>"
+						+ "</head>"
+						+ "<body>"
+						+ "Mi programa solo conoce el factorial de hasta el numero 100. El numero pasado fue: "+numero
+						+ "</body>"
+						+ "</html>");
+				
+			}
+			else if(numero<0) {
+				pw.write("<html>"
+						+ "<head>"
+						+ "<title>Error de parametro</title>"
+						+ "</head>"
+						+ "<body>"
+						+ "Mi programa no sabe obtener el factorial de numeros negativos"
+						+ "</body>"
+						+ "</html>");
+			}
+			else{
+				long facto=1;
+				for (long i = 2; i <=numero;i++)
+					facto*=i;
+				pw.write("<html>"
+						+ "<head>"
+						+ "<title>Hola, bienvenidos al factorializador</title>"
+						+ "</head>"
+						+ "<body>"
+						+ "<h1>Soy un generador de factorial de numeros</h1>"
+						+ "<div>"
+						+ "<p>El factorial de "+ numero+" es: " + facto +"</p>"
+						+ "</div>"
+						+ "</body>"
+						+ "</html>");				
+			}
+		}
+		pw.close();
+	}
+}
+
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.java
new file mode 100644
index 0000000..d07ef44
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsRequestServlet.java
@@ -0,0 +1,41 @@
+
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/show-me-the-bits")
+public class ShowMeTheBitsRequestServlet extends HttpServlet {
+
+	@Override
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+		
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		
+		pw.write("<html>"
+				+ "<head>"
+				+ "<title>Hola, bienvenidos al show me the bits</title>"
+				+ "</head>"
+				+ "<body>"
+				+ "<h1>Soy un conversor sistemas de numeracion</h1>"
+				+ "<div>"
+				+ "<form action=\"show-me-the-bits-response\"  >"
+				+ "Introduzca el numero: <input type=\"text\"  name=number><br>"
+				+ "<input type=\"submit\">"
+				+ "</form>"
+				+ "</div>"
+				+ "</body>"
+				+ "</html>");
+		
+		pw.close();	
+		
+	}
+}
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.java
new file mode 100644
index 0000000..15df185
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/ShowMeTheBitsResponseServlet.java
@@ -0,0 +1,222 @@
+
+
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/show-me-the-bits-response")
+public class ShowMeTheBitsResponseServlet extends HttpServlet {
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		Boolean valido=true;
+		String parametro =  req.getParameter("number");
+		Integer [] vectorResultado = new Integer [16];
+		String tipo="";
+		if(parametro.length() < 1)
+			valido=false;
+		else if(parametro.length() >1 ) {
+			if(parametro.charAt(0) == '0') {
+				if(parametro.charAt(1) == 'x')
+					tipo = "hexadecimal";
+				else
+					tipo = "octal";;
+			}else
+				tipo="decimal";
+		}else
+			tipo= "decimal";;
+		
+		if(tipo.equals("decimal")) {
+			for ( int i = 0 ; i< parametro.length(); i++)
+				if(!Character.isDigit(parametro.charAt(i)))
+					valido = false;
+		}
+		else if(tipo.equals("octal")) {
+			for ( int i = 1 ; i< parametro.length(); i++)
+				if(!Character.isDigit(parametro.charAt(i)))
+					valido = false;
+		}
+		else if(tipo.equals("hexadecimal")) {
+			for ( int i = 2 ; i < parametro.length(); i++ )
+				if( !isHexaDigit(parametro.charAt(i) ) )
+					valido = false;
+		}
+		int validAux = 0;
+		if(valido) {
+			if(tipo.equals("decimal") ) 
+				validAux = Integer.parseInt(parametro,10);  
+			else if( tipo.equals("hexadecimal") )
+				validAux = Integer.parseInt(parametro.substring(2),16);
+			else
+				validAux = Integer.parseInt(parametro.substring(1),8);
+		}
+		if(validAux > 65535)
+			valido = false;
+		if (!valido) {
+			pw.write("<html>"
+					+ "<head>"
+					+ "<title>Error de parametro</title>"
+					+ "</head>"
+					+ "<body>"
+					+ "No se puede generarla tabla de multiplicar. Valor del parametro \"" + parametro + "\" invalido."
+					+ "</body>"
+					+ "</html>");
+
+		}
+		else {
+			transformacion(tipo, parametro, vectorResultado);
+			
+			pw.write("<html>"
+					+ "<head>"
+					+ "<title>Hola, bienvenidos al conversor de numeros</title>"
+					+ "</head>"
+					+ "<body>"
+					+ "<h1>Soy un conversor de sistemas de numeracion</h1>"
+					+ "<table>" 
+					+ "<tr>");
+			for(int i = 15; i >= 0 ; i--) {
+				if(vectorResultado[i] == 1) {
+					pw.write("<th style=\"color: gold ; background-color:darkblue;\">" + vectorResultado[i]+"</th>");
+					
+				}
+				else {
+					pw.write("<th style=\"color:fuchsia ; background-color:darkblue;\">"+vectorResultado[i]+"</th>");
+				}
+				if(i == 8) {
+					pw.write("<th> === </th>");
+				}
+				else if(i == 0) {
+					pw.write("</tr>");
+				}
+				else
+					pw.write("<th> | </th>");
+					
+			}
+			pw.write( "</table>"
+
+					+ "</body>"
+					+ "</html>");				
+			
+		}
+		pw.close();
+	}
+
+	public void transformacion(String tipo, String valor, Integer [] resultado) {
+		if(tipo.equals("decimal")) {
+			Integer numero = Integer.parseInt(valor);
+			int [] vectorAux = new int[16];
+			vectorAux[0] = 1;
+			for(int i = 1 ; i < 16 ;i++) {
+				vectorAux[i] = vectorAux[i-1]*2;
+			}
+			for(int i = 15 ; i > -1 ; i--) {
+				if(numero >= vectorAux[i]) {
+					resultado[i]=1;
+					numero%=vectorAux[i];
+				}
+				else {
+					resultado[i] = 0;
+				}
+			}
+		}
+		
+		else if(tipo.equals("hexadecimal")  ) {
+			String cadenaAux = "";
+			int k = 0;
+			for (int i = valor.length()-1 ; i > 1 ; i--){
+				cadenaAux = hexaToBin(valor.charAt(i));
+				for(int j = 3 ; j > -1 ; j--) {
+					resultado[k++]=Integer.parseInt(""+cadenaAux.charAt(j));
+				}
+			}
+			while(k<16)
+				resultado[k++]=0;
+		}
+		else if( tipo.equals("octal")  ) {
+			String cadenaAux = "";
+			int k = 0;
+			for (int i = valor.length()-1 ; i > 0 ; i--){
+				cadenaAux = octalToBin(valor.charAt(i));
+				for(int j = 2 ; j > -1; j--) {
+					resultado[k++]=Integer.parseInt(""+cadenaAux.charAt(j));
+				}
+			}
+			while(k<16)
+				resultado[k++]=0;
+		}
+	}
+	public String hexaToBin(char caracter) {
+		if(caracter == 'F')
+			return "1111";
+		if(caracter == 'E')
+			return "1110";
+		if(caracter == 'D')
+			return "1101";
+		if(caracter == 'C')
+			return "1100";
+		if(caracter == 'B')
+			return "1011";
+		if(caracter == 'A')
+			return "1010";
+		if(caracter == '9')
+			return "1001";
+		if(caracter == '8')
+			return "1000";
+		if(caracter == '7')
+			return "0111";
+		if(caracter == '6')
+			return "0110";
+		if(caracter == '5')
+			return "0101";
+		if(caracter == '4')
+			return "0100";
+		if(caracter == '3')
+			return "0011";
+		if(caracter == '2')
+			return "0010";
+		if(caracter == '1')
+			return "0001";
+		if(caracter == '0')
+			return "0000";
+		return "";
+		
+	}
+	public String octalToBin(char caracter) {
+		if(caracter == '7')
+			return "111";
+		if(caracter == '6')
+			return "110";
+		if(caracter == '5')
+			return "101";
+		if(caracter == '4')
+			return "100";
+		if(caracter == '3')
+			return "011";
+		if(caracter == '2')
+			return "010";
+		if(caracter == '1')
+			return "001";
+		if(caracter == '0')
+			return "000";
+		return "";
+	}
+	
+	public Boolean isHexaDigit(char caracter) {
+		if( caracter == '0' ||caracter == '1' ||caracter == '2' ||caracter == '3' ||
+			caracter == '4' ||caracter == '5' ||caracter == '6' ||caracter == '7' ||
+			caracter == '8' ||caracter == '9' ||caracter == 'A' ||caracter == 'B' ||
+			caracter == 'C' ||caracter == 'D' ||caracter == 'E' ||caracter == 'F' ) {
+			return true;
+		}
+		else
+			return false;
+	}
+}
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaRequestServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaRequestServlet.java
new file mode 100644
index 0000000..329dc9e
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaRequestServlet.java
@@ -0,0 +1,41 @@
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/suma")
+public class SumaRequestServlet extends HttpServlet {
+
+	@Override
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+	
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+			
+		pw.write("<html>"
+				+ "<head>"
+				+ "<title>Hola, bienvenidos al sumador</title>"
+				+ "</head>"
+				+ "<body>"
+				+ "<h1>Soy un sumador</h1>"
+				+ "<div>"
+				+ "<form action=\"suma-response\">"
+				+ "Enter 1st number: <input type=\"text\"  name=s1><br>"
+				+ "Enter 2nd number: <input type=\"text\"  name=s2><br>"
+				+ "<input type=\"submit\">"
+				+ "</form>"
+				+ "</div>"
+				+ "</body>"
+				+ "</html>");
+		
+		pw.close();	
+		
+	}
+}
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaResponseServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaResponseServlet.java
new file mode 100644
index 0000000..d21811f
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/SumaResponseServlet.java
@@ -0,0 +1,39 @@
+
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/suma-response")
+public class SumaResponseServlet extends HttpServlet {
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		
+		String s1 = req.getParameter("s1");
+		String s2 = req.getParameter("s2");
+		
+		pw.write("<html>"
+				+ "<head>"
+				+ "<title>Hola, bienvenidos al sumador</title>"
+				+ "</head>"
+				+ "<body>"
+				+ "<h1>Soy un sumador</h1>"
+				+ "<div>"
+				+ "<p>Operador s1: " + s1 + "</p>"
+				+ "<p>Operador s2: " + s2 + "</p>"
+				+ "<p>s1 + s2: " + (Double.parseDouble(s1) + Double.parseDouble(s2)) + "</p>"
+				+ "</div>"
+				+ "</body>"
+				+ "</html>");
+		
+		pw.close();
+	}
+}
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.java
new file mode 100644
index 0000000..86803d6
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarRequestServlet.java
@@ -0,0 +1,40 @@
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/tabla-multiplicar")
+public class TablaMultiplicarRequestServlet extends HttpServlet {
+
+	@Override
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{		
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		
+		
+		pw.write("<html>"
+				+ "<head>"
+				+ "<title>Hola, Aqui te enseño las tablas de la multiplicacion</title>"
+				+ "</head>"
+				+ "<body>"
+				+ "<h1>Soy un generador de tablas de multiplicar</h1>"
+				+ "<div>"
+				+ "<form action=\"tabla-multiplicar-response\">"
+				+ "Enter 1st number: <input type=\"text\"  name=number><br>"
+				+ "<input type=\"submit\">"
+				+ "</form>"
+				+ "</div>"
+				+ "</body>"
+				+ "</html>");
+		
+		pw.close();	
+		
+	}
+}
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.java
new file mode 100644
index 0000000..7b600be
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/TablaMultiplicarResponseServelet.java
@@ -0,0 +1,88 @@
+
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/tabla-multiplicar-response")
+public class TablaMultiplicarResponseServelet extends HttpServlet {
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		Boolean valido=true;
+		String parametro =  req.getParameter("number");
+		if(parametro.length() <1)
+			valido=false;
+		for(int i = 0 ; i < parametro.length(); i++) {
+			if(  ( !Character.isDigit(parametro.charAt(i)) && i > 0) && !(Character.isDigit(parametro.charAt(i)) && i == 0 && parametro.charAt(i) != '-' )  ) {
+				valido=false;
+				break;
+			}
+		}
+		if (!valido) {
+			pw.write("<html>"
+					+ "<head>"
+					+ "<title>Error de parametro</title>"
+					+ "</head>"
+					+ "<body>"
+					+ "No se puede generarla tabla de multiplicar. Valor del parametro \"" + parametro + "\" invalido."
+					+ "</body>"
+					+ "</html>");
+
+		}
+		else {
+			Integer numero = Integer.parseInt(parametro);
+			if(numero > 100) {
+				pw.write("<html>"
+						+ "<head>"
+						+ "<title>Error de parametro</title>"
+						+ "</head>"
+						+ "<body>"
+						+ "Mi programa solo conoce la tabla de multiplicar hasta el numero 100. El numero pasado fue: "+numero
+						+ "</body>"
+						+ "</html>");
+				
+			}
+			else if(numero<0) {
+				pw.write("<html>"
+						+ "<head>"
+						+ "<title>Error de parametro</title>"
+						+ "</head>"
+						+ "<body>"
+						+ "Mi programa no sabe las tablas de multiplicar de numeros negativos"
+						+ "</body>"
+						+ "</html>");
+			}
+			else{
+				pw.write("<html>"
+						+ "<head>"
+						+ "<title>Hola, bienvenidos al multiplicador</title>"
+						+ "</head>"
+						+ "<body>"
+						+ "<h1>Soy un generador de tablas de multiplicar</h1>"
+						+ "<table style=\"width:5%\">"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>1 </th>" +"<th>=</th>" + "<th>"+(numero*1) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>2 </th>" +"<th>=</th>" + "<th>"+(numero*2) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>3 </th>" +"<th>=</th>" + "<th>"+(numero*3) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>4 </th>" +"<th>=</th>" + "<th>"+(numero*4) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>5 </th>" +"<th>=</th>" + "<th>"+(numero*5) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>6 </th>" +"<th>=</th>" + "<th>"+(numero*6) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>7 </th>" +"<th>=</th>" + "<th>"+(numero*7) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>8 </th>" +"<th>=</th>" + "<th>"+(numero*8) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>9 </th>" +"<th>=</th>" + "<th>"+(numero*9) + "</th>" + "</tr>"
+						+ "<tr>"+ "<th>"+numero+"</th>" + "<th>*</th>"+ "<th>10</th>" +"<th>=</th>" + "<th>"+(numero*10)+ "</th>" + "</tr>"
+						+ "</tdr>"
+						+ "</body>"
+						+ "</html>");				
+			}
+		}
+		pw.close();
+	}
+}
diff --git a/WebProjectTest/src/com/roshka/webprojecttest/servlets/TestServlet.java b/WebProjectTest/src/com/roshka/webprojecttest/servlets/TestServlet.java
new file mode 100644
index 0000000..7e8539f
--- /dev/null
+++ b/WebProjectTest/src/com/roshka/webprojecttest/servlets/TestServlet.java
@@ -0,0 +1,40 @@
+package com.roshka.webprojecttest.servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/test1")
+public class TestServlet extends HttpServlet {
+
+	@Override
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException
+	{
+		// req -> datos que envia el navegador al servidor de aplicaciones
+		// resp -> la respuesta que envia el servidor de aplicaciones al navegador
+		
+		PrintWriter pw = new PrintWriter(resp.getOutputStream());
+		
+		pw.write("<html>"
+				+ "<head>"
+				+ "<title>Hola, bienvenidos</title>"
+				+ "</head>"
+				+ "<body>"
+				+ "Hola, estoy dentro del HTML"
+				+ "</body>"
+				+ "</html>");
+		
+		pw.close();
+		
+		
+	}
+	
+	
+
+}
--
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