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Venkateswarlu PVenkateswarlu P 

Create a 3 step wizard using Apex

Step 1: Display a list of Contacts with a radio button to select one Contact
Step 2: Show the selected Contact in an edit form (You can hardcode a few fields for this assignment). We may update the field value here. On clicking next, Save the updated Contact
Step 3: Show a confirmation screen with the Update Contact.
Narender Singh(Nads)Narender Singh(Nads)

Hi Venkat,
There could be many ways to approach for this. You can have 3 three sections in a same VF page and render them accordingly or you can create 3 VF pages and redirect from one VF page to another using pagereference.