Wrapper Class

Wrapper Class in Apex Salesforce: A wrapper or container class is a class, a data structure which contains different objects or collection of objects as its members.

A wrapper class is a custom object defined by a programmer wherein he defines the wrapper class properties. Consider a custom object in salesforce, what do you have in it? fields right? different fields of different data types. Similarly wrapper class is a custom class that has different data types or properties as per requirement. We can wrap different object types or any other types in a wrapper class.

Wrapper Class in Apex Salesforce : A wrapper or container class is a class, a data structure which contains different objects or collection of objects as its members.

A wrapper class is a custom object defined by a programmer wherein he defines the wrapper class properties. Consider a custom object in salesforce, what do you have in it? fields right? different fields of different data types. Similarly wrapper class is a custom class that has different data types or properties as per requirement. We can wrap different object types or any other types in a wrapper class.

Below example, we have created our own list with two different data types.

public class wrapper {
    /* Simple data type example
    public void callwrapper(){
        List<wrapperclass> lstwrapeer=new List<wrapperclass>();
        wrapperclass wrapperObj=new wrapperclass();
        wrapperObj.x=10;
        wrapperObj.y='ranbir need Rs.';
        lstwrapeer.add(wrapperObj);
        system.debug(lstwrapeer);
    }
    
    public class wrapperclass{
        
        public integer x;
        public string y;
    }
*/
      public void callwrapper(){
        List<wrapperclass> lst=new List<wrapperclass>();
       //Account acc=[select id,name from Account];
       contact cnn=[select id,firstname from contact limit 1];
        for(Account acc_new:[select id,name from Account]){
          wrapperclass obj=new wrapperclass(acc_new);
          lst.add(obj);
        }
           
           
           wrapperclass obj1=new wrapperclass(cnn);
           lst.add(obj1);
           system.debug(lst.size());
      }
      public class wrapperclass{
            public string name;
            public wrapperclass(Account x1){
                name=x1.name;    
            }
            public wrapperclass(contact x1){
                name=x1.firstname;    
            }
           
        }  
}