Which of the following is true regarding Java classes?

The statement that every class must have a name is fundamentally true in Java. In Java programming, every class must be declared with a unique identifier, known as its name. This naming is crucial because it allows the class to be referenced, instantiated, and utilized within the program. The class name serves as an essential part of the class definition and must follow Java naming conventions.

While multiple public methods can indeed exist within a class, having only one private method is not a requirement, as a class can have none, one, or many private methods. Furthermore, Java's object-oriented programming model supports inheritance, allowing one class to inherit attributes and methods from another, leading to code reuse and the establishment of hierarchical relationships among classes. Thus, a class must always be defined with a name for it to be recognized and used correctly in Java applications.