Java Programming
Basic coding skills
Declare a class

The syntax for declaring a class

public|private class ClassName

{
statements
}

Typical class declarations

public class InvoiceApp{}
public class ProductOrderApp{}
public class Product{}

How to declare a class

A Java application consists of one or more classes. For each class, you code a class declaration. Then, you write the code for the class within the braces of the declaration.
The public and private keywords are access modifiers that control what parts of the program can use the class.
The file name for a class is the class name with java as the extension.

The rules for naming a class

Start the name with a capital letter.
Use letters and digits only.
Follow the other rules for naming an identifier.

Naming recommendations for classes

Start every word within a class name with an initial cap.
Each class name should be a noun or a noun that's preceded by one or more adjectives.

A public class named InvoiceApp

public class InvoiceApp               // declare the class
{                                     // begin the class
   public static void main(String[] args)
   {
      System.out.println("Welcome to the Invoice Total Calculator");
   }
}                                     // end the class

The same class with different brace placement

public class InvoiceApp{              // declare and begin the class
   public static void main(String[] args){
      System.out.println("Welcome to the Invoice Total Calculator");
   }
}                                     // end the class