public class PrimaryStudent extends Student {
protected int grade;
public PrimaryStudent(String name, int age, int score, int grade) {
super(name, age, score);
this.grade = grade;
}
public int getGrade() {
return grade;
}
}
public class Main {
public static void main(String[] args) {
Person p = new Person("小明", 12);
Student s = new Student("小红", 20, 99);
// TODO: 定义PrimaryStudent,从Student继承,新增grade字段:
PrimaryStudent ps = new PrimaryStudent("小军", 9, 100, 5);
System.out.println(ps.getName());
System.out.println(ps.getAge());
System.out.println(ps.getScore());
System.out.println(ps.getGrade());
}
}
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