User Case :- we have user case we need to display all account Information with primitive data types Boolean as isSelected variable as Checkbox, we can Select Some Account in different Datatable and then again i can select some account from there if we click on the check box it will show the related Contact Details and Opportunity Details in the output section, and if contact is not present for the selected Accounts it will show the Message as "No Contact Available" "No Opportunity Available" so we will use wrapper class in apex and try to get all the data to visualforce
