Learn about Wrapper Class (Inner Class) in Apex. A wrapper or container class is a class, data structure, or an abstract data type whose instances are collections of other objects. It is a custom object defined by a developer where the developer defines the properties of the wrapper class. It is used to wrap or bind multiple objects in a single class and use all class functionality to show all the data on a particular location.

Check out these videos:

• Step by Step process of creating Wrapper Class – Video – Suraj
• Wrapper Class in Salesforce with LWC – Video – Amit Singh

Check out this section for more on Wrapper Class with Visualforce.