CJ-2 : Welcome Program-Window Application

For a complete list, click JAVA

Refer Introduction to JAVA before going through your first program.

And for theory part , refer "Some Theory Part in JAVA"

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class firstprogram
{
public static void main(String args[ ])
{
System.out.println("Hai...Welcome...");
}
}

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• Here, firstprogram is the program name.(See, class firstprogram ).The name after declaring the class , is the program name.We have to use the same name , while saving.
• Also note the capital letters of the words String and System. They are case sensitive.

Instead of typing the program  in NOTEPAD or DOS prompt , here , we are using some softwares like NETBEANS or ECLIPSE etc..

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(A) : Familier with NETBEANS platform:

Download NetBeans IDE 

Download NetBeans from here for free. (You need JDK or Java Development Kit for installing NetBeans . If you have no Java platform on your system , download from here (which contains JDK+NetBeans ) .

When clicking this , we get  :

We will get a window as shown below :

Click ; File--> New Project.

Then we can see,

Select JAVA from Categories;  and JAVA APPLICATION from Projects.

Click , Next .

Then , another window will appear as : 

Give a project name , and click Finish.

Then we can see the NetBeans IDE for typing the program.It will look like ;

In our program , we need to type the last println statement only.

The sentenses like /**/  does not tken by the Compiler.So, no need to bother about the extra sentenses you see there.

After typing the println statement to display "Hai....Welcome..." , we have to run it.

right click on the page , and select Run the File , from the drop down menu( or , select from the main menu....or , you can use ShiftF6).

The output will displayed in the bottom....as ; 

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(B) : Familier with ECLIPSE platform:

When clicking this , we get  :  

After giving the details as done before , we can see the Eclipse IDE for typing the program.
I just did the programs and you can see the output there.
(It is also more or less same as NETBEANS , so i just skip the steps for taking the Eclipse IDE here....)