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GoDaddy.com – $10 per domain. Best Service on the Internet.

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GoDaddy.com – Price depends on space – begins from $5 per month for 10GB space.

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000WebHost.com – Free Service (I have not Tried)

Set Up a Domain Name and Space. If you dont want any hassles take the domain name and web space on GoDaddy.com and it will setup everything for you. Its easy to keep everything in one place.

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Soon It’ll become a complete guide where you’ll be able to make your own wordpress blog in less than an hour and start blogging…

Stay Tuned and Keep Following.

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Note : Change the value of Velocity “double V = 100;”
And if required change the gravitational potential “double g = 9.8;”.

Code :

public class Projectile {

public static void main(String[] args) {

double V = 100;

double g = 9.8;

double d = 0;

double d2 = 1;

double y = Math.PI /180;

System.out.println(“Velocity – m/s : ” + V);

System.out.println(“Gravitaional Potential : ” + g);

System.out.println(“Initial Degree : ” + d);

System.out.println(” “);

while (d <= 90) { double R = (2 * V * V * Math.sin(d * y) * Math.cos(d * y))/g; double R2 = (2 * V * V * Math.sin(d2 * y) * Math.cos(d2 * y))/g; if (R2 > R) {

R = R2;

d = d + 1;

d2 = d2 + 1;

}

else {

System.out.println(“Max Distance : ” + R + ” Meters”);

System.out.println(“At : ” + d + ” Degrees”);

break;

}

}

}

}

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Download Here :

IGCSE Economics – How Prices are Determined

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This is my first Cover on Youtube….

Hope you enjoy it…..

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This program calculates the time taken to write numbers from 1 to 500,000. On my Computer it took the program 21 seconds… You can tell about your times in the comments below….

Code :

class TimeCalc {

public static void main (String [] args) {

System.out.println (“This will Measure time taken for a small loop in seconds……”);

int x = 500000;

long startTime = System.nanoTime();

while (x > 0) {

System.out.println (x);

x = x – 1;

}

long endTime = System.nanoTime();

long elapsedTime = endTime – startTime;

long timeSecs = elapsedTime / 1000 / 1000 / 1000 ;

System.out.println (timeSecs + ” seconds were taken to generate these numbers”);

}

}

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99 Bottles of Beer is a very famous song but its quite long to write…

Java is the shortcut to write that song….

Simply write code and compile.

Code :

class BeerSong {

public static void main (String [] args) {

int beerNum = 99;

String word = “bottles”;

while (beerNum > 0) {

if (beerNum == 1) {

word = “bottle”;

}

System.out.println (beerNum + ” ” + word + ” of beer on the wall”);

System.out.println (beerNum + ” ” + word + ” of beer.”);

System.out.println (“Take it down”);

System.out.println (“Pass it around”);

beerNum = beerNum – 1;

if (beerNum == 1) {

System.out.println (beerNum + ” ” + word + ” of beer on the wall”);

} else if (beerNum == 0)}

}

System.out.println (“No more bottles of beer on the wall”);

}

}

Hope you enjoyed it…..

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So now I’m gonna explain how the Hello World Code works.

Code :

class HelloWorld {

public static void main (String [] args) {

System.out.println (“Hello World”);

System.out.println (“My World Rocks”);

}

}

Explained :

The Line class HelloWorld { tell the compiler to make a class file named HelloWorld and opens the program. Means from now the program starts executing.

Then the line public static void main (String [] args) { is the line which the compiler converts into byte code and when it reaches the JVM it just looks for this line to execute the program. If this line is not found then the compiler wont execute the program. And the curly brace at the end opens the program to which really has to be executed.

The Lines System.out.println (“Hello World”); andSystem.out.println (“My World Rocks”); tell the JVM to show the stuff which is in the inverted commas.

The two curly braces } and } are the closing points of the program

Remember every curly brace which is opened has to be closed.

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Now that you have compiled your program, you have to run it.

To run your HelloWorld just do this:

To run the program type :

java HelloWorld

Note: You should be in the directory where the file HelloWorld.java is.

Note: the word before HelloWorld is java and not javac, and don’t type the extension .class after HelloWorld.

Then you should get the output :

Hello World

My World Rocks

Thats it……Now study HelloWorld in detail…

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