public class ___________{ private String name; public Student(String name){ _______.name = name; } } class ComputerStudent _________ Student{ private String major; public ComputerStudent(String name, String major){ ______(name); this.major = major; } } class Demo{ public static void main(______ args[]){ ComputerStudent student = new _________("张三", "计算机专业"); } }