Answer :
A Java program must have at least one of these: Class definition
What is Class definition?
A class is the fundamental building block in object-oriented programming. It can be characterised as a template that explains the information and actions connected to the creation of a class. A class is instantiated to produce an object (variable) of that class that can be used to access its member variables and methods.
A class can also be thought of as a logical template for building objects with shared properties and methods.
For instance, all of the employee information might be present in the form of variables and methods in an Employee class. We can access all the class's methods or properties if the class is instantiated, or if an object (let's say e1) of the class is created.
Learn more about class
https://brainly.com/question/6845355
#SPJ4
