Using the Schema Namespace

The Schema namespace provides classes and methods for working with schema metadata information. We implicitly import Schema.*, but you must fully qualify your uses of Schema namespace elements when they have naming conflicts with items in your unmanaged code. If your org contains an Apex class that has the same name as an sObject, add the Schema namespace prefix to the sObject name in your code.

Schema.DescribeSObjectResult d = Account.sObjectType.getDescribe();
Map<String, Schema.FieldSet> FSMap = d.fieldSets.getMap();

DescribeSObjectResult d = Account.sObjectType.getDescribe();
Map<String, FieldSet> FSMap = d.fieldSets.getMap();

public class Account {
   public Integer myInteger;
}

// ...

// Create a standard Account object myAccountSObject
Schema.Account myAccountSObject = new Schema.Account();
// Create accountClassInstance, a custom class in your org
Account accountClassInstance = new Account();
myAccountSObject.Name = 'Snazzy Account';
accountClassInstance.myInteger = 1;