Skip to main content

Q) what about Programming methodologies ?



There are two styles or approaches or methodologies of problem solving
1) Procedural oriented
2) Object oriented

Methodology is organizing the code. Style of the programming is the methodology.
To solve the problem language is required.
It is a tool to implement the features offered by the methodology solving the problem.
2 approaches to solve /implement the problem.
The total organizing principle is the methodology.  To implement methodology the language is required. Language is a tool.

Ex :
c++ is the tool to implement oop
Java  is the tool to implement oop
But these way of implementation is different to implement oop.

Old methodology contain 2 problems
1)      drawbacks  and
2)      productivity

so that's why new methodology(i.e, oop) is introduced.
Procedure oriented two types
1) Structured
2) Unstructured

Basically procedure oriented is super set of structured. So procedure oriented and procedure oriented is same.


Comments

Post a Comment

Popular posts from this blog

Q) What is JDBC driver? What is its role in java database connection?

A) ->A translation software written in java according o JDBC specification is nothing but “JDBC driver”. -> JDBC driver implements JDBC API. Use single API. JDBC driver role: They are 4 roles   1)       Establishing connection between JDBC client and database server. 2)       Receiving JDBC method calls made by JDBC client while performing database (CRUD) operations. 3)       Translating java method calls into DBMS understandable calls and forwarding them to database server. 4)       Receiving the results from database server. Translating them into java format and handling over the same to the JDBC client.
Post a Comment
Read more

Q) What is ODBC?

A) ->open database connectivity is a technology from MS that enables any language program (other than java) to communication with database Management System. ->in java program ODBC is directly not allowed for the fallowing reasons 1) OS dependency 2) Procedural oriented approach 3) Security thread
Post a Comment
Read more

Q) Retrieving data from database?

A)   ->to retrieve the data from database we need to submit SELECT statement from JDBC application. -> executeQuery() method of statement object is used for this purpose. This method has the fallowing ResultSet executeQuery(String sql) throws SQLException Ex: ResultSet rs = st.executeQuery(“SELECT * FROM ACCOUNT”); ->objectoriented representation of tables formate data is called ResultSet object. Ao the driver created one object i.e. ResultSet object. ->object orientation representation of a table of records returned from db is nothing but “ ResultSet ” object.  
Post a Comment
Read more