Installing Oracle Database 10g Express Edition

Oracle has introduced several features in 10g XE. These are very user friendly and very secure. The main features are: Application Development, Availability, Business Intelligence, Clustering, Content Management, Database Overall, Database Security,Grid Computing, Grid Management, Information Integration, Location Services, Performance and Scalability, Server Manageability, Windows, Workspace Manage.

Let's start installing Oracle 10g XE into our local machines.

Double click on OracleXE exe file to install Oracle

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Oracle ODBC Driver Configuration in Windows XP

To start doing JDBC programs in your local machines you should configure the following softwares:

1. Install Java 1.5 or higher version
2. Install Oracle XE (recommended)
3. Set up classpaths for Java and Oracle and ojdbc14 jar file

These three are common things need to be installed in your system to learn JDBC. Make sure Java and Oracle is working fine with out any problems. To run Jdbc programs we should configure a Driver Connection to Java and Oracle to interact each other. For that we have Drivers like a bridge for these two. The Oracle ODBC Driver provides access to Oracle databases for applications written using the ODBC interface.

Setting up an Oracle ODBC Driver and Data Source

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Atlassian - Issue & Project Tracking Software

In Current market Atlassian is the major project tracking software using by all software companies.
We must  know, what is this software and what is the main purpose of this in real time world. Actually a normal software developer can develop code using MyEclipse or NetBeans IDEs. Then he can commits the code using SVN or CVS. Once he committs the code each file can get a version number in repository.If you want to check which line of code we modified or added or removed we don't know.again we should compare from history. But in Atlassin fisheye we can find all the changes you committed and which line deleted and which line committed, we can find easily with colors. Atlassian reduces developer efforts and reduces time all the things automated by atlassian once the code committed to repository.

Actually this software contains several products with in this to tack the issues and maintenance the software in the normal software companies.

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Addition or Sum of 2x2 matrix using Arrays in java

We know that arrays are different types, as usual one dimensional array, two dimensional array, three and multi (mxn) dimensional arrays.
In two dimensional arrays we need 2x2 array.

A 2x2 matrix is a rectangular often square array of numbers having 2 columns and 2 rows, or expressions which can be evaluated to numbers. The dimensions m x n refer to the number of rows (m) and columns (n) respectively.

We can declare the one dimensional array as:

int[] myArray = {0,1,2,3};

and two dimensional array looks like this:

 int[][] myArray = { {0,1,2,3}, {3,2,1,0}, {3,5,6,1}, {3,8,3,4} };

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Nataraz sir moving from Sathya Techologies to Durga Soft

The Great Nataraz sir trained more than 10,000 students in Java technologies in 9 years  from Sathya Technologies, now he decided to stop his valuable services from Sathya Technologies.

He made a contract with Durga Software Solutions to train IT Professionals from May 1st week 2013. The current batches which are running those will be completed by April month. Other wise the administration will decide what to take further steps.

All are thankful to Sathya Technologies , by providing such a good classes and good environment to run the classes and you made many professionals in java with Nataraz Sir.

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Importance of toString() in java

Object class of Java is having predefined toString() method. This method by default Object class calls implicitly when an object created. Overriding toString manually is nothing but implementing this method in our class.The java toString() method is used when we need a string representation of an object. It is defined in Object class.

The toString() method is useful for debugging. By default, when an object is printed out in a print stream like System.out, the toString() method of the object is automatically called.
While develping the code the developers used to check the object properties are getting through the object or not. For this print statement will be useful to quick test in the console.

public String toString()
Returns: a string representation of the object.

Let us take a Person class and try to print the person object using the System.out.println() statement.

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