Sample Code:


Visualforce page:


<apex:page controller=”Sample” tabStyle=”Account”>
<apex:form >
<apex:pageMessages />
    <apex:pageBlock id=”pg”>
        <apex:pageBlockSection columns=”1″>
            <apex:outputField value=”{!con.FirstName}”/>
            <apex:outputField value=”{!con.LastName}”/>
        </apex:pageBlockSection>
    </apex:pageBlock>
</apex:form>

</apex:page>


Apex Class:


public class Sample {
    public Contact con {get;set;}
    Id conId {get;set;}
    
    public Sample() {
        conId = ApexPages.currentPage().getParameters().get(‘conId’);
        con = [SELECT FirstName, LastName FROM Contact WHERE Id =: conId];
    }

}


Field:

Output:

Cheers!!!