Thursday 25 October 2012
Wednesday 17 October 2012
IGNOU MCA 1ST SEM SOLVED ASSIGNMENTS 2012-13
IGNOU MCA First Semester Solved Assignments For July-January-2012-13 Session is now available here at Free of Cost .
MCA First Semester Solved Assignments Details :
1 - Problem Solving and Programming (MCS-011)
Download MCS-011 Solved Assignment 2012-13
Updated
2 - Computer Organisation and Assembly Language (MCS-012)
Download MCS-012 Solved Assignment 2012-13
Shared By Rohit
3 - Discrete Mathematics (MCS-013)
Download MCS-013 Solved Assignment 2012-13
4- Systems Analysis and Design (MCS-014)
Download MCS-014 Solved Assignment 2012-13
5 - Communication Skills (MCS-015)
Download MCS-015 Solved Assignment 2012-13
6 - Internet Concepts and Web Design (MCSL-016)
Download MCSL-016 Solved Assignment 2012-13
7 - C and Assembly Language Programming (MCSL-017)
Download MCSL-017 Solved Assignment 2012-13
Remaining Assignments will be added Asap. For More Updates Join us on Facebook . & For Any Assignments or for any Query, You can Directly Mail Us justdostudy@gmail.com
Thursday 11 October 2012
History of JAVA
Java is a programming language and a platform independent.
* James Gosling, Mike Sheridan, and Patrick Naughton initiated the Java language project in June 1991.
* Originally designed for small, embedded systems in electronic appliances like set-top boxes.
* Initially called Oak and was developed as a part of the Green Project.
* In 1995, Oak was renamed as "Java". Java is just a name not an acronym.
* Originally developed by James Gosling at Sun MIcrosystems(which is now a subsidiary of Oracle
Corporation) and released in 1995.
* JDK 1.0 released in January 23, 1996.
Procedure of Software Developing
Let's take an Example
Step -1
An Architect in an Building Development, It first create Prototype
(Dummy Model).
Same in Software Company having an Architect who develop the skeleton
of the Software (Dummy Model) , by using
Interfaces.
Step - 2
Saturday 6 October 2012
Java Tutorials: Finalize and Garbage Collector Example
class TT extends Object
{
TT()
{
System.out.println("TT Class Default Constructor ");
}
protected void finalize()
{
System.out.println("TT Object Going to Dead....");
}
{
TT()
{
System.out.println("TT Class Default Constructor ");
}
protected void finalize()
{
System.out.println("TT Object Going to Dead....");
}
}
public class SystemClassDemo3 {
public static void main(String args[])
{
TT obj = new TT(); // Strong Reference
System.gc();
System.out.println("Now I am Going to Null the Obj ");
obj = null;
System.gc();
System.runFinalization();
}
}
public class SystemClassDemo3 {
public static void main(String args[])
{
TT obj = new TT(); // Strong Reference
System.gc();
System.out.println("Now I am Going to Null the Obj ");
obj = null;
System.gc();
System.runFinalization();
}
}
Friday 5 October 2012
Java Tutorials: Example of Co-variant return type
package project1;
class Fuel
{
int power;
int smoothness;
int roots;
}
class Hydrogon extends Fuel
int power;
int smoothness;
int roots;
}
class Hydrogon extends Fuel
{
int gasUnit;
}
class Car
int gasUnit;
}
class Car
{
Fuel run()
Fuel run()
{
return new Fuel();
}
}
class FutureCar extends Car
return new Fuel();
}
}
class FutureCar extends Car
{
Hydrogon run()
Hydrogon run()
{
return new Hydrogon();
}
}
public class Class4
return new Hydrogon();
}
}
public class Class4
{
public Class4()
public Class4()
{
}
public static void main(String[] args)
}
public static void main(String[] args)
{
FutureCar futureCar = new FutureCar();
futureCar.run();
}
}
FutureCar futureCar = new FutureCar();
futureCar.run();
}
}
Java Tutorials: Eclipse Shortcuts
File Navigation – Eclipse Shortcuts
CTRL SHIFT R – Open a resource. You need not know the path and just
part of the file name is enough.
CTRL E – Open a file (editor) from within the list of all open files.
CTRL PAGE UP or PAGE DOWN – Navigate to previous or next file from
within the list of all open files.
ALT <- or ALT -> – Go to previous or next edit positions from editor
history list.
Java Editing – Eclipse Shortcuts
CTRL SPACE – Type assist
CTRL SHIFT F – Format code.
CTRL O – List all methods of the class and again CTRL O lists
including inherited methods.
CTRL SHIFT O – Organize imports.
CTRL SHIFT U – Find reference in file.
CTRL / – Comment a line.
F3 – Go to the declaration of the variable.
F4 – Show type hierarchy of on a class.
CTRL T – Show inheritance tree of current token.
SHIFT F2 – Show Javadoc for current element.
ALT SHIFT Z – Enclose block in try-catch.
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