Convert 15 digit Id to 18 digit Id in Salesforce apex class

Biswajeet   September 16, 2014   No Comments on Convert 15 digit Id to 18 digit Id in Salesforce apex class

In Salesforce each record Id represents a unique record within an Organisation.
These ids are in two formats for every record Id in Salesforce:

  • 15 digit case-sensitive version which is referenced in the UI (Detail pages / reports)
  • 18 digit case-insensitive version which is referenced through the API

Apex Class:

public class TestPage
{
    public String FifteenDigit {get;set;}
    public Id EighteenDigit {get;set;}
     
    public TestPage(){
        FifteenDigit = 'a0390000009ooJG';
        EighteenDigit = FifteenDigit;
    }
}

Visualforce Page:

<apex:page controller="TestPage" doctype="html-5.0">
   <apex:form>
       <apex:outputtext value="Fifteen Digit : "></apex:outputtext>
       <apex:outputtext value="{!FifteenDigit}"></apex:outputtext>
       <apex:outputtext value="Eighteen Digit : "></apex:outputtext>
       <apex:outputtext value="{!EighteenDigit}"></apex:outputtext>
   </apex:form>
</apex:page>

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Note: CASESAFEID(Id) function in a formula field can be used to capture the 18 digit id of a record.