Apex - Class

Apex - Class

A class is a template or blueprint from which objects are created. An object is an instance of a class. This is standard definition of Class.

→ 3 ways to create apex class in salesforce

1.   Apex Class
2.  Apex from Developer Console
3.  Force.com Eclipse IDE

    From Apex Class:

     Step 1: Click on Setup option. (Top right side on Org)

     Step 2: Search 'Apex Class' in Quick find box and click on Apex Classes link. It will open the Apex Class details page.

      

     Step 3: Click on 'New' button to create new Class.

          

     Step 4: Write code here and then click on save button.

     

From Developer Console:

    Step 1: Go to Name and click on Developer Console.

    Step 2: Click on File menu → New and then click on Apex class.

    Step 3: Write Class name and click on OK button.

    Step 4: Write code here.

   From Force.com IDE:

     Step 1: Open Force.com – Eclipse.

    Step 2: Create a New project by clicking on File → New → Apex Class.

   

    Step 3: Write the Name of Class and click on Finish button.

    Step 4: Once this is done, the new class will be created.

  

    Syntax:

    private | public | global 

    [virtual | abstract | with sharing | without sharing] 

    class ClassName [implements InterfaceNameList] [extends ClassName] 

    { 

      // Classs Body

    }

    Example:

    public class Sampleclass

    {       

         public static Integer a1 = 0; 

         public static Integer getmultiValue()

        {

                 a1 = a1 * 10;

                 return a1;

        }

    }