Introduction - If you have any usage issues, please Google them yourself
1. The definition of a student class (Student), attributes the name of a private (name), public age (age), professional (specialty) and package name attribute method: setName (), getName (), getspecialty () the preparation of Application to create a student object, set the name and age property value, and then call a method (this method the object passed as a parameter in the method to print out the names of the students name and age of age). (Student class contains only static member variables and methods.)