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Information Technology (IT)
Sam Eldin - IT Profile
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Developer Skills
Owing your own company with limited resources forces you to be creative and supper
efficient. When it comes to coding there is no choice, but to be able to code
end-to-end including Linux or Unix scripts, Makefile, pipes, etc. Object Oriented
Design, frameworks, templates and code segments, tests scripts and training material
become household items. This also demands building good documentation with running
examples and training material. The next issue is that everything you had built must
be integrated with ease into any clients' system, technologies and teams. Building
intelligent system is an added tool in these integration. Not to mention, you are
competing with companies such IBM, Microsoft and all the offshore consulting companies
and their resource. Searching the internet and open source become the quickest tools
for being update and saving time. Sadly open source comes with a price such as costly
vendor support or running into issues which you do not know what are the causes.
I have been coding for over 18 years and I am not interested in coding day-in-day-out. I believe
my skills should be used to technical lead, architecting and technical and project
management. I am willing to code complex components, where my experience and knowledge
would properly be utilized.
The following are code which I posted in my SamEldi.com and other sites.
Note:
Some of these code qualify as Core Java and some may need updating. Nevertheless, they
demonstrate my ability to code, trace-debug code, document as well as mentor:
Excel Sheet-DAO-XML Data Exchange Seed Framework
Unix Code
Java-SQL
JavaScript and Servlets
String Manipulation
Conversions and utils
Swing
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Excel Sheet-DAO-XML Data Exchange Seed Framework
Our First Intelligent CRM Metadata (ICM) Seed Framework:
We have built our "ICM_DB_TestComponents" project using NetBeans. We had chosen excel
sheets as the project first input data for a number of reasons. First, most companies
have thousands if not hundreds of thousands of excel sheets with critical data which
is a big part of the Big Data dilemma. Excel sheets have no fixed standards in their
creation or format, therefore they bring to our parser and converts the biggest
challenges. Having copies of excel sheets to test our parsers and converter do not
require any special effort as in the case of databases. Also excel formulas can be
used in making our DAO an Intelligent DAO (IDAO).
The following are the actual code of our for "ICM_DB_TestComponents" project.
We created our first Parser-Converter Java code and we called "Using Business Rule #1".
The following are our "ICM_DB_TestComponents" project input-out files and Java code files.
We welcome any feedback or comments and our contact email is:
Sam@SamEldin.com
Input Files:
1.
SimpleInputExcelSheet.xlsx
2.
BusinessToken_ID.txt
Java Constant Classes:
1.
MainConstants.java
2.
SOAP_XML_Constants.java
3.
ExcelDAO_Constants.java
Package: Java DAO Classes - unstructured_data_idao:
1.
ExcelCellMap2DAO.java
2.
ExcelColumnMap2DAO.java
3.
JavaCodeGeneratorDAO.java
4.
OneRow_ExcelCells.java
5.
TokenValueDAO.java
Package - unstructured_data_parser:
1.
ColumnCellParserUsingBusinessRule_1.java
2.
Convert2DAO_Class_UsingBusinessRule_1.java
3.
DAO2SOAP_XML_Converter.java
4.
DAO_ClassLoader.java
5.
DAO_DynamicCompilation.java
6.
Excel2DAO_CellParserBusinessRule_1.java
7.
Excel2DAO_Mapper.java
8.
LoadTokenValueArrayList.java
9.
ParsingSOAP_XML_MessagesFile.java
10.
RowCellParserUsingBusinessRule_1.java
Output Files:
1.
SimpleInputExcelSheetDAO.java
2.
SimpleInputExcelSheet_XML.xml
2.
Debugger Tracking of Input and Output
javadoc:
1.
ICM_DB_TestComponents javadoc link
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Unix code
The following are some of my review material and code as refreshing tips sense I am using Unix or Linux on/off as needed.
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Java-SQL
The following are some of review material and code as refreshing tips for SQL code. Also cut/paste our these code.
These code help with quick syntax look up.
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JavaScript and Servlets
JSP, Session, JavaScript, Import Page Directive, Forms and Servlets were
my choice in building browser-servlets code. The following is a small sample to
demo the flexibility of such code.
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String Manipulation
Strings are sequences of characters and string manipulation is key when dealing with strings.
Java has number of built-in APIs that developers may use.
Most of interview questions about strings targeting some of the code in the following list of Java classes.
Coding Questions:
Implement code to calculate the value of string “-123456.89” or “123,456.789”. Make
your code extensible and able to parse all strings that can be converted to a numerical
value. Do not use or assume availability of Java parsing libraries.
1)
ConvertString_2_NumericalValue.java
Implement code which will calculate the value of 2^(3^(4^(5^6))) two different ways.
Do not use or assume availability of math function libraries.
For note, this is a mathematical and not a bitwise operator.
As an example, 2^3 = 8.
We coded this question with:
Coding using String Parsing
1)
Calculate_X_Value_2_Power_Y.java
Coding using Nodes Linked List
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Conversions and utils
The following is a number of conversion and utilities which often used in projects.
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Swing
The following was part of training course on Java swing and Design Patterns.
swing - command_pattern_w_objects
swing - behavior_patterns.command_pattern_w_menu
swing - structural_patterns_pdf_facade_pattern
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