Passion of IT

Posts by Michele Rizzi

Gantt and PERT diagram of my english ...

7 September 2014 Written by Michele Rizzi
pert
PERT DIAGRAM GANTT DIAGRAM   I wrote above small examples about how to plan the common activities with some professional instruments. At the end of each course I will share the deliverable also called milestone: my English certificate. This is very optimistic planning for this reason I think that this is a challenge. I’m not hurr [...]
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What is electric energy?

29 August 2014 Written by Michele Rizzi
200px-Electric_motor
Electric energy is made of a movement of any electrons from the conductor with more potential energy to the conductor with less potential energy that are both connected. When you rub two amber bar with fur and put one of them near the other. You can see one bar reject the other. When you rub a glass bar with silk and a amber bar with fur  you [...]
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Scripting languages: Python

6 August 2014 Written by Michele Rizzi
python
There are a lot of scripting languages, the following are the most important: Javascript: it allows to perform the interaction with user of html page, JQuery is an evolution of javascript and is made of javascript SQL: script to interact with DB: DDL (data definition language) to modify the structure of the table, DML (data manipulation lang [...]
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NOSQL Mongodb Vs MySQL

2 August 2014 Written by Michele Rizzi
download
The better way to work with a SQL database and a programming language like java is by using a ORM (Object-Relational Mapping) layer such as hibernate or JPA. An ORM layer basically provides an object oriented interface to a relational database. That means that instead of writing a query to insert or update a record, you assign some properties [...]
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Jena: Semantic Web

26 July 2014 Written by Michele Rizzi
jena-logo-large
Nowadays everyone has internet, there are a lot of web pages and it is quite difficult to perform an accurate research among these pages to get the correct information that you need. The problem is that the information online is not structured like a database: Web page is complex document with pictures, videos, images and meta information of [...]
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Lucene:information retrieval

19 July 2014 Written by Michele Rizzi
lucene
How is internet search engine made of? How I can search a lot of information in many documents or web pages? I could search these information using a information retrieval system. Information retrieval The information retrival system executes queries to text unstructured document but this file is not ready to search information inside it beca [...]
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Spring MVC Vs JSF

13 July 2014 Written by Michele Rizzi
spring_mvc_rest_resttemplate
There most important front end frameworks of J2EE are Spring MVC and JSF. JSF: Java Server Facets JSF in my opinion is the most used front end framework because it is easy and stable: you can make a very complex and secure web application  in few time using it. This framework has the principal component called “portlet” each portl [...]
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CSS3 – New features

11 July 2014 Written by Michele Rizzi
CSS3
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Encrypt Text Applet

6 July 2014 Written by Michele Rizzi
Encrypt text Applet
An applet is a special java class that is executed on computer client in the same manner that you execute the command java -jar  for this reason an applet can perform everything on your machine for example it has an access on your file system and it can copy everything from/to your computer, it can read all your mails and your documents etc. [...]
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TCP-IP, Java.net

5 July 2014 Written by Michele Rizzi
imageview.php
These libraries allow to work with the lowest layer of the TCP-IP protocol in client-server applications, this layer is a little up the transport one. Internet is a wide network, when a computer is connected to the telephone line, this machine is connected to the ISP (internet service provider) and this ISP have all the tools to allows to in [...]
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