How to Start Java Programming

itslucky

My Dear, for java development, u didn't need any of the large compiler or the programs

* Java is just three steps

1. write a java program ( u can also write ur code in Notepad)

2. compile it

3. Run on any Machine

for the developers:

u need the Java JDK (Java Development Kit) u can download it from

http://java.sun.com/products/archive/j2se/6u6/index.html

u can also write ur code in Notepad, but the IDEs alsways the best choice because they are very usefull ( to correct ur typing/syntax error )

so here is the link of one of the IDE (Netbeans)

http://www.netbeans.org/downloads/

*The IDE is not so important to be with you (but it is Best to be with you)*

Now u have all the tools, lets Dirty ur hands with the Java Coding Razz

itslucky · **Posted:** Apr 24, 2009 **Post subject:** Write ur FIRST JAVA PROGRAM

According to me (Lucky), in any of the programming language we must know about following three things

1. How to print info on Screen?

2. How to take input?

3. How to print the taken inputs?

so now lets start with the Step 1: (Print Info on Screen)

1. open the notepad

2. type/copy the following code

////////////////////////////////////

public class myprogram {

public static void main(String args[])
{
System.out.println("Hi...!!! Welcome to my First Program in Java...");
}

}

///////////////////////////////////

How to Start Java Programming

3. now save the code to the

>>> C:\Program Files\Java\jdk1.6.0_06\bin

(The place where your JDK is installed {above is the dafault location} )

How to Start Java Programming

NOTE:
in the above pic when i type the name of program, it is the same name as the name of my class in the code..

and i have type "" double quotes and in them i type "myprogram.java"

now save it.

4. Now lets Compile and run the code

Open Run from Start Menu (or Shortcut key "win+R")

and type

CMD

hit enter, and goto the following location

C:\Program Files\Java\jdk1.6.0_06\bin

by typing as the following picture

then compile and run the code

How to Start Java Programming

In the above pic

To compile the code:

we type

>> javac myprogram.java (hit Enter)

then execute the compiles program

>> java myprogram (hit enter)

////////////////////////////////
from the above, I think u people now print any text on the screen

just edit the

>>System.out.println("Hi...!!! Welcome to my First Program in Java...");

line and thats it...